Re: [Chevelle-list] 327 question
i had the same problem in my 67 it had a 283 and PG at the time, come to find out it was the torque converter bolts Bill Bradley 67 Chevelle Malibu 71 triumph Spitfire 82 Chevy 1/2 ton 06 dodge Caravan 82 Kawasaki KZ305CSR - Original Message - From: "J. Brady" <[EMAIL PROTECTED]> To: "Chevelle Group" Sent: Friday, November 10, 2006 5:35 PM Subject: [Chevelle-list] 327 question Drove the '66 to work today, and decided to throw this question out to "the Council": My car runs great, and the 327 has an aluminum intake, speed pro 10.5:1 pistons, crane powermax cam (272/284), Comp Cams roller rockers, and freshly built camel hump heads with pinned in studs. Valves have been redone within the past 2-3 years with MAYBE 1000 miles on them, and I have new valve springs and retainers (also Crane, to match the cam). All that being said, it runs great with one small pet peave.. When I drive the car it runs flawlessly UNTIL I get to 2000 RPMs on the tach, at which point I hear a slight "chatter". That's the only way I can describe it. I've heard hung up lifters before, and that's not the noise- that's a chronic "tap-tap-tap-tap" (like 1-2-3-4). This, in my best impression, goes "dadadadadadada" in a much faster interval, thus the chatter description. It sounds like it's on the driver side of the engine, and happens ONLY at 2K RPMs.. I drop back, it goes away- I increase throttle PAST 2K RPMs, it goes away. I thought maybe it might be something bumping the dipstick or something stupid like that, so I moved the dipstick and it still happens. I don't think it's worth pulling the engine back out to check, but it's damned frustrating. Anyone have any guesses? I do not have valve guides and I wondered if it might be that I need them. Another note, I had the same noise when I had my 260/272 cam in it, which I just swapped out to the 272/284 as of this year. I thought maybe the disassembly and reassembly might make it go away (with readjustment of the valves), but it's still there so I'm guessing it's lower end noise. But from where and why ONLY at that revolution? Thanks in advance, Jim '66 Malibu Cheap talk? Check out Yahoo! Messenger's low PC-to-Phone call rates. http://voice.yahoo.com
Re: [Chevelle-list] 327 question
>>> Piston slap Normally caused by piston mist. :*)
Re: [Chevelle-list] 327 question
Even if it's not chronic? That's the weird part. Jim --- "Jim H. Thompson" <[EMAIL PROTECTED]> wrote: > Piston slap > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > Behalf Of J. Brady > Sent: Friday, November 10, 2006 6:36 PM > To: Chevelle Group > Subject: [Chevelle-list] 327 question > > Drove the '66 to work today, and decided to throw > this > question out to "the Council": > > My car runs great, and the 327 has an aluminum > intake, > speed pro 10.5:1 pistons, crane powermax cam > (272/284), Comp Cams roller rockers, and freshly > built > camel hump heads with pinned in studs. Valves have > been redone within the past 2-3 years with MAYBE > 1000 > miles on them, and I have new valve springs and > retainers (also Crane, to match the cam). > > All that being said, it runs great with one small > pet > peave.. When I drive the car it runs flawlessly > UNTIL > I get to 2000 RPMs on the tach, at which point I > hear > a slight "chatter". That's the only way I can > describe it. I've heard hung up lifters before, and > that's not the noise- that's a chronic > "tap-tap-tap-tap" (like 1-2-3-4). This, in my best > impression, goes "dadadadadadada" in a much faster > interval, thus the chatter description. It sounds > like it's on the driver side of the engine, and > happens ONLY at 2K RPMs.. I drop back, it goes > away- > I increase throttle PAST 2K RPMs, it goes away. I > thought maybe it might be something bumping the > dipstick or something stupid like that, so I moved > the > dipstick and it still happens. > > I don't think it's worth pulling the engine back out > to check, but it's damned frustrating. Anyone have > any guesses? I do not have valve guides and I > wondered if it might be that I need them. Another > note, I had the same noise when I had my 260/272 cam > in it, which I just swapped out to the 272/284 as of > this year. I thought maybe the disassembly and > reassembly might make it go away (with readjustment > of > the valves), but it's still there so I'm guessing > it's > lower end noise. But from where and why ONLY at > that > revolution? > > Thanks in advance, > > Jim > '66 Malibu > > > > > > Cheap talk? > Check out Yahoo! Messenger's low PC-to-Phone call > rates. > http://voice.yahoo.com > > > Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com
Re: [Chevelle-list] 327 question
Piston slap -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of J. Brady Sent: Friday, November 10, 2006 6:36 PM To: Chevelle Group Subject: [Chevelle-list] 327 question Drove the '66 to work today, and decided to throw this question out to "the Council": My car runs great, and the 327 has an aluminum intake, speed pro 10.5:1 pistons, crane powermax cam (272/284), Comp Cams roller rockers, and freshly built camel hump heads with pinned in studs. Valves have been redone within the past 2-3 years with MAYBE 1000 miles on them, and I have new valve springs and retainers (also Crane, to match the cam). All that being said, it runs great with one small pet peave.. When I drive the car it runs flawlessly UNTIL I get to 2000 RPMs on the tach, at which point I hear a slight "chatter". That's the only way I can describe it. I've heard hung up lifters before, and that's not the noise- that's a chronic "tap-tap-tap-tap" (like 1-2-3-4). This, in my best impression, goes "dadadadadadada" in a much faster interval, thus the chatter description. It sounds like it's on the driver side of the engine, and happens ONLY at 2K RPMs.. I drop back, it goes away- I increase throttle PAST 2K RPMs, it goes away. I thought maybe it might be something bumping the dipstick or something stupid like that, so I moved the dipstick and it still happens. I don't think it's worth pulling the engine back out to check, but it's damned frustrating. Anyone have any guesses? I do not have valve guides and I wondered if it might be that I need them. Another note, I had the same noise when I had my 260/272 cam in it, which I just swapped out to the 272/284 as of this year. I thought maybe the disassembly and reassembly might make it go away (with readjustment of the valves), but it's still there so I'm guessing it's lower end noise. But from where and why ONLY at that revolution? Thanks in advance, Jim '66 Malibu Cheap talk? Check out Yahoo! Messenger's low PC-to-Phone call rates. http://voice.yahoo.com
Re: [Chevelle-list] 327 question
That's why I come to you guys 8^] Regards, Jim --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > You would think that. By retarding the timing 2-3 > degrees an exhaust leak would sound different. > Weak springs on the centrifical advance in the > distributor causing the timing to move at "certain" > rpms??? Seen alot in my 25+ years of tinkering with > over 350 cars bought and sold... > > - Original Message > From: J. Brady <[EMAIL PROTECTED]> > To: The Chevelle Mailing List > > Sent: Friday, November 10, 2006 6:10:44 PM > Subject: Re: [Chevelle-list] 327 question > > Only thing is, if it were lower end, wouldn't you > hear > it continue at higher RPMs? That the part that's > eatin me. > > Jim > > > --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > > > It could be an exhaust leak as well. Been > there > > Try adjusting the timing a few degrees. If > nothing > > changes it might be in the lower end > > unfortunately... > > > > - Original Message > > From: J. Brady <[EMAIL PROTECTED]> > > To: The Chevelle Mailing List > > > > Sent: Friday, November 10, 2006 5:58:12 PM > > Subject: Re: [Chevelle-list] 327 question > > > > That's exactly what I think it is Carl, sounds > like > > a > > wrist pin or piston slap to me. > > > > I don't recall hearing it when in the driveway, > only > > when out on the road. > > > > Jim > > > > > > --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > > > > > Does it only happen when under a load or can you > > sit > > > there and rev it to hear it? I would try to > > retard > > > the timing a bit to rule that out as well, just > to > > > see... I had lifters act like that as well on a > > > 283, no clatter until a certain RPM, sounded > like > > a > > > rist pin or piston slap. My $.02 > > > > > > - Original Message > > > From: J. Brady <[EMAIL PROTECTED]> > > > To: Chevelle Group > > > Sent: Friday, November 10, 2006 5:35:46 PM > > > Subject: [Chevelle-list] 327 question > > > > > > Drove the '66 to work today, and decided to > throw > > > this > > > question out to "the Council": > > > > > > My car runs great, and the 327 has an aluminum > > > intake, > > > speed pro 10.5:1 pistons, crane powermax cam > > > (272/284), Comp Cams roller rockers, and freshly > > > built > > > camel hump heads with pinned in studs. Valves > > have > > > been redone within the past 2-3 years with MAYBE > > > 1000 > > > miles on them, and I have new valve springs and > > > retainers (also Crane, to match the cam). > > > > > > All that being said, it runs great with one > small > > > pet > > > peave.. When I drive the car it runs flawlessly > > > UNTIL > > > I get to 2000 RPMs on the tach, at which point I > > > hear > > > a slight "chatter". That's the only way I can > > > describe it. I've heard hung up lifters before, > > and > > > that's not the noise- that's a chronic > > > "tap-tap-tap-tap" (like 1-2-3-4). This, in my > best > > > impression, goes "dadadadadadada" in a much > faster > > > interval, thus the chatter description. It > sounds > > > like it's on the driver side of the engine, and > > > happens ONLY at 2K RPMs.. I drop back, it goes > > > away- > > > I increase throttle PAST 2K RPMs, it goes away. > I > > > thought maybe it might be something bumping the > > > dipstick or something stupid like that, so I > moved > > > the > > > dipstick and it still happens. > > > > > > I don't think it's worth pulling the engine back > > out > > > to check, but it's damned frustrating. Anyone > > have > > > any guesses? I do not have valve guides and I > > > wondered if it might be that I need them. > Another > > > note, I had the same noise when I had my 260/272 > > cam > > > in it, which I just swapped out to the 272/284 > as > > of > > > this year. I thought maybe the disassembly and > > > reassembly might make it go away (with > >
Re: [Chevelle-list] 327 question
I actually don't have one in the car- running headers. Thanks for the suggestion though! Jim --- [EMAIL PROTECTED] wrote: > Heat riser ??? Try to tie it up if you have one, > see if noise goes away. Assuming you have one. gm66 > > > --- [EMAIL PROTECTED] wrote: > > From: Carl Ziegler <[EMAIL PROTECTED]> > To: The Chevelle Mailing iYou would think that. By > retarding the timing 2-3 degrees an exhaust leak > would sound different. Weak springs on the > centrifical advance in the distributor causing the > timing to move at "certain" rpms??? Seen alot in my > 25+ years of tinkering with over 350 cars bought and > sold... > > - Original Message > From: J. Brady <[EMAIL PROTECTED]> > To: The Chevelle Mailing List > > Sent: Friday, November 10, 2006 6:10:44 PM > Subject: Re: [Chevelle-list] 327 question > > Only thing is, if it were lower end, wouldn't you > hear > it continue at higher RPMs? That the part that's > eatin me. > > Jim > > > --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > > > It could be an exhaust leak as well. Been > there > > Try adjusting the timing a few degrees. If > nothing > > changes it might be in the lower end > > unfortunately... > > > > ----- Original Message > > From: J. Brady <[EMAIL PROTECTED]> > > To: The Chevelle Mailing List > > > > Sent: Friday, November 10, 2006 5:58:12 PM > > Subject: Re: [Chevelle-list] 327 question > > > > That's exactly what I think it is Carl, sounds > like > > a > > wrist pin or piston slap to me. > > > > I don't recall hearing it when in the driveway, > only > > when out on the road. > > > > Jim > > > > > > --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > > > > > Does it only happen when under a load or can you > > sit > > > there and rev it to hear it? I would try to > > retard > > > the timing a bit to rule that out as well, just > to > > > see... I had lifters act like that as well on a > > > 283, no clatter until a certain RPM, sounded > like > > a > > > rist pin or piston slap. My $.02 > > > > > > - Original Message > > > From: J. Brady <[EMAIL PROTECTED]> > > > To: Chevelle Group > > > Sent: Friday, November 10, 2006 5:35:46 PM > > > Subject: [Chevelle-list] 327 question > > > > > > Drove the '66 to work today, and decided to > throw > > > this > > > question out to "the Council": > > > > > > My car runs great, and the 327 has an aluminum > > > intake, > > > speed pro 10.5:1 pistons, crane powermax cam > > > (272/284), Comp Cams roller rockers, and freshly > > > built > > > camel hump heads with pinned in studs. Valves > > have > > > been redone within the past 2-3 years with MAYBE > > > 1000 > > > miles on them, and I have new valve springs and > > > retainers (also Crane, to match the cam). > > > > > > All that being said, it runs great with one > small > > > pet > > > peave.. When I drive the car it runs flawlessly > > > UNTIL > > > I get to 2000 RPMs on the tach, at which point I > > > hear > > > a slight "chatter". That's the only way I can > > > describe it. I've heard hung up lifters before, > > and > > > that's not the noise- that's a chronic > > > "tap-tap-tap-tap" (like 1-2-3-4). This, in my > best > > > impression, goes "dadadadadadada" in a much > faster > > > interval, thus the chatter description. It > sounds > > > like it's on the driver side of the engine, and > > > happens ONLY at 2K RPMs.. I drop back, it goes > > > away- > > > I increase throttle PAST 2K RPMs, it goes away. > I > > > thought maybe it might be something bumping the > > > dipstick or something stupid like that, so I > moved > > > the > > > dipstick and it still happens. > > > > > > I don't think it's worth pulling the engine back > > out > > > to check, but it's damned frustrating. Anyone > > have > > > any guesses? I do not have valve guides and I > > > wondered if it might be that I need them. > Another > > > note, I had the same nois
Re: [Chevelle-list] 327 question
Heat riser ??? Try to tie it up if you have one, see if noise goes away. Assuming you have one. gm66 --- [EMAIL PROTECTED] wrote: From: Carl Ziegler <[EMAIL PROTECTED]> To: The Chevelle Mailing iYou would think that. By retarding the timing 2-3 degrees an exhaust leak would sound different. Weak springs on the centrifical advance in the distributor causing the timing to move at "certain" rpms??? Seen alot in my 25+ years of tinkering with over 350 cars bought and sold... - Original Message From: J. Brady <[EMAIL PROTECTED]> To: The Chevelle Mailing List Sent: Friday, November 10, 2006 6:10:44 PM Subject: Re: [Chevelle-list] 327 question Only thing is, if it were lower end, wouldn't you hear it continue at higher RPMs? That the part that's eatin me. Jim --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > It could be an exhaust leak as well. Been there > Try adjusting the timing a few degrees. If nothing > changes it might be in the lower end > unfortunately... > > - Original Message > From: J. Brady <[EMAIL PROTECTED]> > To: The Chevelle Mailing List > > Sent: Friday, November 10, 2006 5:58:12 PM > Subject: Re: [Chevelle-list] 327 question > > That's exactly what I think it is Carl, sounds like > a > wrist pin or piston slap to me. > > I don't recall hearing it when in the driveway, only > when out on the road. > > Jim > > > --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > > > Does it only happen when under a load or can you > sit > > there and rev it to hear it? I would try to > retard > > the timing a bit to rule that out as well, just to > > see... I had lifters act like that as well on a > > 283, no clatter until a certain RPM, sounded like > a > > rist pin or piston slap. My $.02 > > > > - Original Message > > From: J. Brady <[EMAIL PROTECTED]> > > To: Chevelle Group > > Sent: Friday, November 10, 2006 5:35:46 PM > > Subject: [Chevelle-list] 327 question > > > > Drove the '66 to work today, and decided to throw > > this > > question out to "the Council": > > > > My car runs great, and the 327 has an aluminum > > intake, > > speed pro 10.5:1 pistons, crane powermax cam > > (272/284), Comp Cams roller rockers, and freshly > > built > > camel hump heads with pinned in studs. Valves > have > > been redone within the past 2-3 years with MAYBE > > 1000 > > miles on them, and I have new valve springs and > > retainers (also Crane, to match the cam). > > > > All that being said, it runs great with one small > > pet > > peave.. When I drive the car it runs flawlessly > > UNTIL > > I get to 2000 RPMs on the tach, at which point I > > hear > > a slight "chatter". That's the only way I can > > describe it. I've heard hung up lifters before, > and > > that's not the noise- that's a chronic > > "tap-tap-tap-tap" (like 1-2-3-4). This, in my best > > impression, goes "dadadadadadada" in a much faster > > interval, thus the chatter description. It sounds > > like it's on the driver side of the engine, and > > happens ONLY at 2K RPMs.. I drop back, it goes > > away- > > I increase throttle PAST 2K RPMs, it goes away. I > > thought maybe it might be something bumping the > > dipstick or something stupid like that, so I moved > > the > > dipstick and it still happens. > > > > I don't think it's worth pulling the engine back > out > > to check, but it's damned frustrating. Anyone > have > > any guesses? I do not have valve guides and I > > wondered if it might be that I need them. Another > > note, I had the same noise when I had my 260/272 > cam > > in it, which I just swapped out to the 272/284 as > of > > this year. I thought maybe the disassembly and > > reassembly might make it go away (with > readjustment > > of > > the valves), but it's still there so I'm guessing > > it's > > lower end noise. But from where and why ONLY at > > that > > revolution? > > > > Thanks in advance, > > > > Jim > > '66 Malibu > > > > > > > > > > > Cheap talk? > > Check out Yahoo! Messenger's low PC-to-Phone call > > rates. > > http://voice.yahoo.com > > > > > > > > > > > > > > > > > >
Re: [Chevelle-list] 327 question
You would think that. By retarding the timing 2-3 degrees an exhaust leak would sound different. Weak springs on the centrifical advance in the distributor causing the timing to move at "certain" rpms??? Seen alot in my 25+ years of tinkering with over 350 cars bought and sold...- Original Message From: J. Brady <[EMAIL PROTECTED]>To: The Chevelle Mailing List Sent: Friday, November 10, 2006 6:10:44 PMSubject: Re: [Chevelle-list] 327 questionOnly thing is, if it were lower end, wouldn't you hearit continue at higher RPMs? That the part that'seatin me.Jim--- Carl Ziegler <[EMAIL PROTECTED]> wrote:> It could be an exhaust leak as well. Been there> Try adjusting the timing a few degrees. If nothing> changes it might be in the lower end> unfortunately...> > - Original Message > From: J. Brady <[EMAIL PROTECTED]>> To: The Chevelle Mailing List> > Sent: Friday, November 10, 2006 5:58:12 PM> Subject: Re: [Chevelle-list] 327 question> > That's exactly what I think it is Carl, sounds like> a> wrist pin or piston slap to me.> > I don't recall hearing it when in the driveway, only> when out on the road.> > Jim> > > --- Carl Ziegler <[EMAIL PROTECTED]> wrote:> > > Does it only happen when under a load or can you> sit> > there and rev it to hear it? I would try to> retard> > the timing a bit to rule that out as well, just to> > see... I had lifters act like that as well on a> > 283, no clatter until a certain RPM, sounded like> a> > rist pin or piston slap. My $.02> > > > - Original Message > > From: J. Brady <[EMAIL PROTECTED]>> > To: Chevelle Group > > Sent: Friday, November 10, 2006 5:35:46 PM> > Subject: [Chevelle-list] 327 question> > > > Drove the '66 to work today, and decided to throw> > this> > question out to "the Council":> > > > My car runs great, and the 327 has an aluminum> > intake,> > speed pro 10.5:1 pistons, crane powermax cam> > (272/284), Comp Cams roller rockers, and freshly> > built> > camel hump heads with pinned in studs. Valves> have> > been redone within the past 2-3 years with MAYBE> > 1000> > miles on them, and I have new valve springs and> > retainers (also Crane, to match the cam).> > > > All that being said, it runs great with one small> > pet> > peave.. When I drive the car it runs flawlessly> > UNTIL> > I get to 2000 RPMs on the tach, at which point I> > hear> > a slight "chatter". That's the only way I can> > describe it. I've heard hung up lifters before,> and> > that's not the noise- that's a chronic> > "tap-tap-tap-tap" (like 1-2-3-4). This, in my best> > impression, goes "dadadadadadada" in a much faster> > interval, thus the chatter description. It sounds> > like it's on the driver side of the engine, and> > happens ONLY at 2K RPMs.. I drop back, it goes> > away- > > I increase throttle PAST 2K RPMs, it goes away. I> > thought maybe it might be something bumping the> > dipstick or something stupid like that, so I moved> > the> > dipstick and it still happens.> > > > I don't think it's worth pulling the engine back> out> > to check, but it's damned frustrating. Anyone> have> > any guesses? I do not have valve guides and I> > wondered if it might be that I need them. Another> > note, I had the same noise when I had my 260/272> cam> > in it, which I just swapped out to the 272/284 as> of> > this year. I thought maybe the disassembly and> > reassembly might make it go away (with> readjustment> > of> > the valves), but it's still there so I'm guessing> > it's> > lower end noise. But from where and why ONLY at> > that> > revolution? > > > > Thanks in advance,> > > > Jim> > '66 Malibu> > > > > > > >>> > Cheap talk?> > Check out Yahoo! Messenger's low PC-to-Phone call> > rates.> > http://voice.yahoo.com> > > > > > > > > > > > > > > > > > > >>> > Want to start your own business?> > Learn how on Yahoo! Small Business.> > http://smallbusiness.yahoo.com/r-index> > > > >> Do you Yahoo!?> Everyone is raving about the all-new Yahoo! Mail> beta.> http://new.mail.yahoo.com> > > > > > > > > >> Do you Yahoo!?> Everyone is raving about the all-new Yahoo! Mail> beta.> http://new.mail.yahoo.com Cheap talk?Check out Yahoo! Messenger's low PC-to-Phone call rates.http://voice.yahoo.com Want to start your own business? Learn how on Yahoo! Small Business.
Re: [Chevelle-list] 327 question
You know, that sounds logical actually- since I'm only hearing it when the car is moving. And I haven't been back to those bolts since the engine went in the car in '03. Jim --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > Check your torque convertor bolts, that will also > cause that type of noise. > > - Original Message > From: J. Brady <[EMAIL PROTECTED]> > To: The Chevelle Mailing List > > Sent: Friday, November 10, 2006 5:58:12 PM > Subject: Re: [Chevelle-list] 327 question > > That's exactly what I think it is Carl, sounds like > a > wrist pin or piston slap to me. > > I don't recall hearing it when in the driveway, only > when out on the road. > > Jim > > > --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > > > Does it only happen when under a load or can you > sit > > there and rev it to hear it? I would try to > retard > > the timing a bit to rule that out as well, just to > > see... I had lifters act like that as well on a > > 283, no clatter until a certain RPM, sounded like > a > > rist pin or piston slap. My $.02 > > > > - Original Message > > From: J. Brady <[EMAIL PROTECTED]> > > To: Chevelle Group > > Sent: Friday, November 10, 2006 5:35:46 PM > > Subject: [Chevelle-list] 327 question > > > > Drove the '66 to work today, and decided to throw > > this > > question out to "the Council": > > > > My car runs great, and the 327 has an aluminum > > intake, > > speed pro 10.5:1 pistons, crane powermax cam > > (272/284), Comp Cams roller rockers, and freshly > > built > > camel hump heads with pinned in studs. Valves > have > > been redone within the past 2-3 years with MAYBE > > 1000 > > miles on them, and I have new valve springs and > > retainers (also Crane, to match the cam). > > > > All that being said, it runs great with one small > > pet > > peave.. When I drive the car it runs flawlessly > > UNTIL > > I get to 2000 RPMs on the tach, at which point I > > hear > > a slight "chatter". That's the only way I can > > describe it. I've heard hung up lifters before, > and > > that's not the noise- that's a chronic > > "tap-tap-tap-tap" (like 1-2-3-4). This, in my best > > impression, goes "dadadadadadada" in a much faster > > interval, thus the chatter description. It sounds > > like it's on the driver side of the engine, and > > happens ONLY at 2K RPMs.. I drop back, it goes > > away- > > I increase throttle PAST 2K RPMs, it goes away. I > > thought maybe it might be something bumping the > > dipstick or something stupid like that, so I moved > > the > > dipstick and it still happens. > > > > I don't think it's worth pulling the engine back > out > > to check, but it's damned frustrating. Anyone > have > > any guesses? I do not have valve guides and I > > wondered if it might be that I need them. Another > > note, I had the same noise when I had my 260/272 > cam > > in it, which I just swapped out to the 272/284 as > of > > this year. I thought maybe the disassembly and > > reassembly might make it go away (with > readjustment > > of > > the valves), but it's still there so I'm guessing > > it's > > lower end noise. But from where and why ONLY at > > that > > revolution? > > > > Thanks in advance, > > > > Jim > > '66 Malibu > > > > > > > > > > > Cheap talk? > > Check out Yahoo! Messenger's low PC-to-Phone call > > rates. > > http://voice.yahoo.com > > > > > > > > > > > > > > > > > > > > > > > Want to start your own business? > > Learn how on Yahoo! Small Business. > > http://smallbusiness.yahoo.com/r-index > > > > > > Do you Yahoo!? > Everyone is raving about the all-new Yahoo! Mail > beta. > http://new.mail.yahoo.com > > > > > > > > > > > Do you Yahoo!? > Everyone is raving about the all-new Yahoo! Mail > beta. > http://new.mail.yahoo.com Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com
Re: [Chevelle-list] 327 question
Only thing is, if it were lower end, wouldn't you hear it continue at higher RPMs? That the part that's eatin me. Jim --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > It could be an exhaust leak as well. Been there > Try adjusting the timing a few degrees. If nothing > changes it might be in the lower end > unfortunately... > > - Original Message > From: J. Brady <[EMAIL PROTECTED]> > To: The Chevelle Mailing List > > Sent: Friday, November 10, 2006 5:58:12 PM > Subject: Re: [Chevelle-list] 327 question > > That's exactly what I think it is Carl, sounds like > a > wrist pin or piston slap to me. > > I don't recall hearing it when in the driveway, only > when out on the road. > > Jim > > > --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > > > Does it only happen when under a load or can you > sit > > there and rev it to hear it? I would try to > retard > > the timing a bit to rule that out as well, just to > > see... I had lifters act like that as well on a > > 283, no clatter until a certain RPM, sounded like > a > > rist pin or piston slap. My $.02 > > > > - Original Message > > From: J. Brady <[EMAIL PROTECTED]> > > To: Chevelle Group > > Sent: Friday, November 10, 2006 5:35:46 PM > > Subject: [Chevelle-list] 327 question > > > > Drove the '66 to work today, and decided to throw > > this > > question out to "the Council": > > > > My car runs great, and the 327 has an aluminum > > intake, > > speed pro 10.5:1 pistons, crane powermax cam > > (272/284), Comp Cams roller rockers, and freshly > > built > > camel hump heads with pinned in studs. Valves > have > > been redone within the past 2-3 years with MAYBE > > 1000 > > miles on them, and I have new valve springs and > > retainers (also Crane, to match the cam). > > > > All that being said, it runs great with one small > > pet > > peave.. When I drive the car it runs flawlessly > > UNTIL > > I get to 2000 RPMs on the tach, at which point I > > hear > > a slight "chatter". That's the only way I can > > describe it. I've heard hung up lifters before, > and > > that's not the noise- that's a chronic > > "tap-tap-tap-tap" (like 1-2-3-4). This, in my best > > impression, goes "dadadadadadada" in a much faster > > interval, thus the chatter description. It sounds > > like it's on the driver side of the engine, and > > happens ONLY at 2K RPMs.. I drop back, it goes > > away- > > I increase throttle PAST 2K RPMs, it goes away. I > > thought maybe it might be something bumping the > > dipstick or something stupid like that, so I moved > > the > > dipstick and it still happens. > > > > I don't think it's worth pulling the engine back > out > > to check, but it's damned frustrating. Anyone > have > > any guesses? I do not have valve guides and I > > wondered if it might be that I need them. Another > > note, I had the same noise when I had my 260/272 > cam > > in it, which I just swapped out to the 272/284 as > of > > this year. I thought maybe the disassembly and > > reassembly might make it go away (with > readjustment > > of > > the valves), but it's still there so I'm guessing > > it's > > lower end noise. But from where and why ONLY at > > that > > revolution? > > > > Thanks in advance, > > > > Jim > > '66 Malibu > > > > > > > > > > > Cheap talk? > > Check out Yahoo! Messenger's low PC-to-Phone call > > rates. > > http://voice.yahoo.com > > > > > > > > > > > > > > > > > > > > > > > Want to start your own business? > > Learn how on Yahoo! Small Business. > > http://smallbusiness.yahoo.com/r-index > > > > > > Do you Yahoo!? > Everyone is raving about the all-new Yahoo! Mail > beta. > http://new.mail.yahoo.com > > > > > > > > > > > Do you Yahoo!? > Everyone is raving about the all-new Yahoo! Mail > beta. > http://new.mail.yahoo.com Cheap talk? Check out Yahoo! Messenger's low PC-to-Phone call rates. http://voice.yahoo.com
Re: [Chevelle-list] 327 question
Check your torque convertor bolts, that will also cause that type of noise.- Original Message From: J. Brady <[EMAIL PROTECTED]>To: The Chevelle Mailing List Sent: Friday, November 10, 2006 5:58:12 PMSubject: Re: [Chevelle-list] 327 questionThat's exactly what I think it is Carl, sounds like awrist pin or piston slap to me.I don't recall hearing it when in the driveway, onlywhen out on the road.Jim--- Carl Ziegler <[EMAIL PROTECTED]> wrote:> Does it only happen when under a load or can you sit> there and rev it to hear it? I would try to retard> the timing a bit to rule that out as well, just to> see... I had lifters act like that as well on a> 283, no clatter until a certain RPM, sounded like a> rist pin or piston slap. My $.02> > - Original Message > From: J. Brady <[EMAIL PROTECTED]>> To: Chevelle Group > Sent: Friday, November 10, 2006 5:35:46 PM> Subject: [Chevelle-list] 327 question> > Drove the '66 to work today, and decided to throw> this> question out to "the Council":> > My car runs great, and the 327 has an aluminum> intake,> speed pro 10.5:1 pistons, crane powermax cam> (272/284), Comp Cams roller rockers, and freshly> built> camel hump heads with pinned in studs. Valves have> been redone within the past 2-3 years with MAYBE> 1000> miles on them, and I have new valve springs and> retainers (also Crane, to match the cam).> > All that being said, it runs great with one small> pet> peave.. When I drive the car it runs flawlessly> UNTIL> I get to 2000 RPMs on the tach, at which point I> hear> a slight "chatter". That's the only way I can> describe it. I've heard hung up lifters before, and> that's not the noise- that's a chronic> "tap-tap-tap-tap" (like 1-2-3-4). This, in my best> impression, goes "dadadadadadada" in a much faster> interval, thus the chatter description. It sounds> like it's on the driver side of the engine, and> happens ONLY at 2K RPMs.. I drop back, it goes> away- > I increase throttle PAST 2K RPMs, it goes away. I> thought maybe it might be something bumping the> dipstick or something stupid like that, so I moved> the> dipstick and it still happens.> > I don't think it's worth pulling the engine back out> to check, but it's damned frustrating. Anyone have> any guesses? I do not have valve guides and I> wondered if it might be that I need them. Another> note, I had the same noise when I had my 260/272 cam> in it, which I just swapped out to the 272/284 as of> this year. I thought maybe the disassembly and> reassembly might make it go away (with readjustment> of> the valves), but it's still there so I'm guessing> it's> lower end noise. But from where and why ONLY at> that> revolution? > > Thanks in advance,> > Jim> '66 Malibu> > > >> Cheap talk?> Check out Yahoo! Messenger's low PC-to-Phone call> rates.> http://voice.yahoo.com> > > > > > > > > >> Want to start your own business?> Learn how on Yahoo! Small Business.> http://smallbusiness.yahoo.com/r-index Do you Yahoo!?Everyone is raving about the all-new Yahoo! Mail beta.http://new.mail.yahoo.com Cheap Talk? Check out Yahoo! Messenger's low PC-to-Phone call rates.
Re: [Chevelle-list] 327 question
It could be an exhaust leak as well. Been there Try adjusting the timing a few degrees. If nothing changes it might be in the lower end unfortunately...- Original Message From: J. Brady <[EMAIL PROTECTED]>To: The Chevelle Mailing List Sent: Friday, November 10, 2006 5:58:12 PMSubject: Re: [Chevelle-list] 327 questionThat's exactly what I think it is Carl, sounds like awrist pin or piston slap to me.I don't recall hearing it when in the driveway, onlywhen out on the road.Jim--- Carl Ziegler <[EMAIL PROTECTED]> wrote:> Does it only happen when under a load or can you sit> there and rev it to hear it? I would try to retard> the timing a bit to rule that out as well, just to> see... I had lifters act like that as well on a> 283, no clatter until a certain RPM, sounded like a> rist pin or piston slap. My $.02> > - Original Message > From: J. Brady <[EMAIL PROTECTED]>> To: Chevelle Group > Sent: Friday, November 10, 2006 5:35:46 PM> Subject: [Chevelle-list] 327 question> > Drove the '66 to work today, and decided to throw> this> question out to "the Council":> > My car runs great, and the 327 has an aluminum> intake,> speed pro 10.5:1 pistons, crane powermax cam> (272/284), Comp Cams roller rockers, and freshly> built> camel hump heads with pinned in studs. Valves have> been redone within the past 2-3 years with MAYBE> 1000> miles on them, and I have new valve springs and> retainers (also Crane, to match the cam).> > All that being said, it runs great with one small> pet> peave.. When I drive the car it runs flawlessly> UNTIL> I get to 2000 RPMs on the tach, at which point I> hear> a slight "chatter". That's the only way I can> describe it. I've heard hung up lifters before, and> that's not the noise- that's a chronic> "tap-tap-tap-tap" (like 1-2-3-4). This, in my best> impression, goes "dadadadadadada" in a much faster> interval, thus the chatter description. It sounds> like it's on the driver side of the engine, and> happens ONLY at 2K RPMs.. I drop back, it goes> away- > I increase throttle PAST 2K RPMs, it goes away. I> thought maybe it might be something bumping the> dipstick or something stupid like that, so I moved> the> dipstick and it still happens.> > I don't think it's worth pulling the engine back out> to check, but it's damned frustrating. Anyone have> any guesses? I do not have valve guides and I> wondered if it might be that I need them. Another> note, I had the same noise when I had my 260/272 cam> in it, which I just swapped out to the 272/284 as of> this year. I thought maybe the disassembly and> reassembly might make it go away (with readjustment> of> the valves), but it's still there so I'm guessing> it's> lower end noise. But from where and why ONLY at> that> revolution? > > Thanks in advance,> > Jim> '66 Malibu> > > >> Cheap talk?> Check out Yahoo! Messenger's low PC-to-Phone call> rates.> http://voice.yahoo.com> > > > > > > > > >> Want to start your own business?> Learn how on Yahoo! Small Business.> http://smallbusiness.yahoo.com/r-index Do you Yahoo!?Everyone is raving about the all-new Yahoo! Mail beta.http://new.mail.yahoo.com Want to start your own business? Learn how on Yahoo! Small Business.
Re: [Chevelle-list] 327 question
No worries Larry, appreciate the help! Regards, Jim --- [EMAIL PROTECTED] wrote: > Yikes your answer came in between reading Herbs and > sending mine. > Larry (Z) > > Want to start your own business? Learn how on Yahoo! Small Business. http://smallbusiness.yahoo.com/r-index
Re: [Chevelle-list] 327 question
Yikes your answer came in between reading Herbs and sending mine. Larry (Z)
Re: [Chevelle-list] 327 question
I agree with Herb. If its a stick does the noise go away when you push the clutch in ? Throwout bearings can make all kind of little noises. Larry (Z)
Re: [Chevelle-list] 327 question
That's exactly what I think it is Carl, sounds like a wrist pin or piston slap to me. I don't recall hearing it when in the driveway, only when out on the road. Jim --- Carl Ziegler <[EMAIL PROTECTED]> wrote: > Does it only happen when under a load or can you sit > there and rev it to hear it? I would try to retard > the timing a bit to rule that out as well, just to > see... I had lifters act like that as well on a > 283, no clatter until a certain RPM, sounded like a > rist pin or piston slap. My $.02 > > - Original Message > From: J. Brady <[EMAIL PROTECTED]> > To: Chevelle Group > Sent: Friday, November 10, 2006 5:35:46 PM > Subject: [Chevelle-list] 327 question > > Drove the '66 to work today, and decided to throw > this > question out to "the Council": > > My car runs great, and the 327 has an aluminum > intake, > speed pro 10.5:1 pistons, crane powermax cam > (272/284), Comp Cams roller rockers, and freshly > built > camel hump heads with pinned in studs. Valves have > been redone within the past 2-3 years with MAYBE > 1000 > miles on them, and I have new valve springs and > retainers (also Crane, to match the cam). > > All that being said, it runs great with one small > pet > peave.. When I drive the car it runs flawlessly > UNTIL > I get to 2000 RPMs on the tach, at which point I > hear > a slight "chatter". That's the only way I can > describe it. I've heard hung up lifters before, and > that's not the noise- that's a chronic > "tap-tap-tap-tap" (like 1-2-3-4). This, in my best > impression, goes "dadadadadadada" in a much faster > interval, thus the chatter description. It sounds > like it's on the driver side of the engine, and > happens ONLY at 2K RPMs.. I drop back, it goes > away- > I increase throttle PAST 2K RPMs, it goes away. I > thought maybe it might be something bumping the > dipstick or something stupid like that, so I moved > the > dipstick and it still happens. > > I don't think it's worth pulling the engine back out > to check, but it's damned frustrating. Anyone have > any guesses? I do not have valve guides and I > wondered if it might be that I need them. Another > note, I had the same noise when I had my 260/272 cam > in it, which I just swapped out to the 272/284 as of > this year. I thought maybe the disassembly and > reassembly might make it go away (with readjustment > of > the valves), but it's still there so I'm guessing > it's > lower end noise. But from where and why ONLY at > that > revolution? > > Thanks in advance, > > Jim > '66 Malibu > > > > > Cheap talk? > Check out Yahoo! Messenger's low PC-to-Phone call > rates. > http://voice.yahoo.com > > > > > > > > > > > Want to start your own business? > Learn how on Yahoo! Small Business. > http://smallbusiness.yahoo.com/r-index Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com
Re: [Chevelle-list] 327 question
Thanks for the input Herb- I'm pretty sure it's engine-related, as I've put the car back together from scratch as you know, and I'd hoped to eliminate any of that hubub to avoid making you guys compensate for it 8^] As for the tranny, plain ole PG 2 speed automatic. It's the weirdest thing. --- Herb Lumpp <[EMAIL PROTECTED]> wrote: > Hi Jim, > > Let me start off by saying, you do have valve > guides, maybe you meant to say > you didn't have them replaced when the work was done > on the heads? Either > way, you have them. As for the noise, are you sure > it's coming from the > engine? Do you have a manual or auto trans? It > could be something in the > clutch and/or linkage that doesn't like that > particular rpm and it rattles. > Maybe something under the body/frame is very close > to the engine/trans and > at that rpm things move just enough to make contact. > Food for thought. > > Herb > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > Behalf Of J. Brady > Sent: Friday, November 10, 2006 6:36 PM > To: Chevelle Group > Subject: [Chevelle-list] 327 question > > > Drove the '66 to work today, and decided to throw > this > question out to "the Council": > > My car runs great, and the 327 has an aluminum > intake, > speed pro 10.5:1 pistons, crane powermax cam > (272/284), Comp Cams roller rockers, and freshly > built > camel hump heads with pinned in studs. Valves have > been redone within the past 2-3 years with MAYBE > 1000 > miles on them, and I have new valve springs and > retainers (also Crane, to match the cam). > > All that being said, it runs great with one small > pet > peave.. When I drive the car it runs flawlessly > UNTIL > I get to 2000 RPMs on the tach, at which point I > hear > a slight "chatter". That's the only way I can > describe it. I've heard hung up lifters before, and > that's not the noise- that's a chronic > "tap-tap-tap-tap" (like 1-2-3-4). This, in my best > impression, goes "dadadadadadada" in a much faster > interval, thus the chatter description. It sounds > like it's on the driver side of the engine, and > happens ONLY at 2K RPMs.. I drop back, it goes > away- > I increase throttle PAST 2K RPMs, it goes away. I > thought maybe it might be something bumping the > dipstick or something stupid like that, so I moved > the > dipstick and it still happens. > > I don't think it's worth pulling the engine back out > to check, but it's damned frustrating. Anyone have > any guesses? I do not have valve guides and I > wondered if it might be that I need them. Another > note, I had the same noise when I had my 260/272 cam > in it, which I just swapped out to the 272/284 as of > this year. I thought maybe the disassembly and > reassembly might make it go away (with readjustment > of > the valves), but it's still there so I'm guessing > it's > lower end noise. But from where and why ONLY at > that > revolution? > > Thanks in advance, > > Jim > '66 Malibu > > > > > > Cheap talk? > Check out Yahoo! Messenger's low PC-to-Phone call > rates. > http://voice.yahoo.com > > > Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com
Re: [Chevelle-list] 327 question
Does it only happen when under a load or can you sit there and rev it to hear it? I would try to retard the timing a bit to rule that out as well, just to see... I had lifters act like that as well on a 283, no clatter until a certain RPM, sounded like a rist pin or piston slap. My $.02- Original Message From: J. Brady <[EMAIL PROTECTED]>To: Chevelle Group Sent: Friday, November 10, 2006 5:35:46 PMSubject: [Chevelle-list] 327 questionDrove the '66 to work today, and decided to throw thisquestion out to "the Council":My car runs great, and the 327 has an aluminum intake,speed pro 10.5:1 pistons, crane powermax cam(272/284), Comp Cams roller rockers, and freshly builtcamel hump heads with pinned in studs. Valves havebeen redone within the past 2-3 years with MAYBE 1000miles on them, and I have new valve springs andretainers (also Crane, to match the cam).All that being said, it runs great with one small petpeave.. When I drive the car it runs flawlessly UNTILI get to 2000 RPMs on the tach, at which point I heara slight "chatter". That's the only way I candescribe it. I've heard hung up lifters before, andthat's not the noise- that's a chronic"tap-tap-tap-tap" (like 1-2-3-4). This, in my bestimpression, goes "dadadadadadada" in a much fasterinterval, thus the chatter description. It soundslike it's on the driver side of the engine, andhappens ONLY at 2K RPMs.. I drop back, it goes away- I increase throttle PAST 2K RPMs, it goes away. Ithought maybe it might be something bumping thedipstick or something stupid like that, so I moved thedipstick and it still happens.I don't think it's worth pulling the engine back outto check, but it's damned frustrating. Anyone haveany guesses? I do not have valve guides and Iwondered if it might be that I need them. Anothernote, I had the same noise when I had my 260/272 camin it, which I just swapped out to the 272/284 as ofthis year. I thought maybe the disassembly andreassembly might make it go away (with readjustment ofthe valves), but it's still there so I'm guessing it'slower end noise. But from where and why ONLY at thatrevolution? Thanks in advance,Jim'66 Malibu Cheap talk?Check out Yahoo! Messenger's low PC-to-Phone call rates.http://voice.yahoo.com Access over 1 million songs - Yahoo! Music Unlimited.
Re: [Chevelle-list] 327 question
Hi Jim, Let me start off by saying, you do have valve guides, maybe you meant to say you didn't have them replaced when the work was done on the heads? Either way, you have them. As for the noise, are you sure it's coming from the engine? Do you have a manual or auto trans? It could be something in the clutch and/or linkage that doesn't like that particular rpm and it rattles. Maybe something under the body/frame is very close to the engine/trans and at that rpm things move just enough to make contact. Food for thought. Herb -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of J. Brady Sent: Friday, November 10, 2006 6:36 PM To: Chevelle Group Subject: [Chevelle-list] 327 question Drove the '66 to work today, and decided to throw this question out to "the Council": My car runs great, and the 327 has an aluminum intake, speed pro 10.5:1 pistons, crane powermax cam (272/284), Comp Cams roller rockers, and freshly built camel hump heads with pinned in studs. Valves have been redone within the past 2-3 years with MAYBE 1000 miles on them, and I have new valve springs and retainers (also Crane, to match the cam). All that being said, it runs great with one small pet peave.. When I drive the car it runs flawlessly UNTIL I get to 2000 RPMs on the tach, at which point I hear a slight "chatter". That's the only way I can describe it. I've heard hung up lifters before, and that's not the noise- that's a chronic "tap-tap-tap-tap" (like 1-2-3-4). This, in my best impression, goes "dadadadadadada" in a much faster interval, thus the chatter description. It sounds like it's on the driver side of the engine, and happens ONLY at 2K RPMs.. I drop back, it goes away- I increase throttle PAST 2K RPMs, it goes away. I thought maybe it might be something bumping the dipstick or something stupid like that, so I moved the dipstick and it still happens. I don't think it's worth pulling the engine back out to check, but it's damned frustrating. Anyone have any guesses? I do not have valve guides and I wondered if it might be that I need them. Another note, I had the same noise when I had my 260/272 cam in it, which I just swapped out to the 272/284 as of this year. I thought maybe the disassembly and reassembly might make it go away (with readjustment of the valves), but it's still there so I'm guessing it's lower end noise. But from where and why ONLY at that revolution? Thanks in advance, Jim '66 Malibu Cheap talk? Check out Yahoo! Messenger's low PC-to-Phone call rates. http://voice.yahoo.com
Re: [Chevelle-List] 327 Question
Replies to this message are sent to The Chevelle Mailing List Check for vacuum leaks. I've had more than one motor that I was sure I assembled right suck air from somewhere. First I check vacuum lines, then I listen for telltale whistles while the engine is running. If I can't locate something that way I'll use a propane torch. I open the valve slightly and pass the nozzle around the base of the carburetor or around the edges of the intake manifold where it meets the heads. If you get the nozzle close to where a vacuum leak is it sucks in the propane and the engine smooths out. Just remember, you are using a flammable gas. Make sure you don't have a spark plug wire arcing somewhere first and do it in a very well ventilated area..like outside. There's no need to get too close to the distributor. There's nothing there that would be a vacuum leak anyway Spraying carburetor cleaner around the base of the carb and around the intake manifold will achieve the same results but carb cleaner is one of the best paint removers I've ever seen. Bill Vander Werf Rhonda Stalker wrote: > the darn thing doesn't seem to time up right. Lots of power but runs > like shit, misses and pings. Any Ideas??? We've been told the crane > rockers and push rods are compatible with the Edelbrock cam but I'm > getting a little concerned about the clearance. - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
Re: [Chevelle-List] 327 Question
Replies to this message are sent to The Chevelle Mailing List Did you verify that the timing mark on the damper is accurate? It's not unheard of for the rubber to weaken and allow the outer ring to slip in relation to the inner hub. Brad Rhonda Stalker wrote: > My son installed an Edelbrock high prof. cam, high prof valve springs, Edelbrock > timing gears and chain, Crane roller rockers, and crane push rods. > > He already has an edelbrock manifold and Hei ignition. We rolled back the crank > to 5 degrees before TDC and then dropped the distributor (as edelbrock > instructed). > > We have set the valve lash 3 times now and dropped in the distributor twice. > > the darn thing doesn't seem to time up right. Lots of power but runs like shit, > misses and pings. Any Ideas??? We've been told the crane rockers and push > rods are compatible with the Edelbrock cam but I'm getting a little concerned > about the clearance. - To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
