I cleaned up all the oil and will have to inspect the engine for the leak again. If it does turn out to be a head gasket (there was some oil around the bottom of the head on the leaky oil filler cap side) do you just re-torque the bolts or is it more involved than that?
On Sat, Jun 21, 2008 at 12:43 PM, Bill Cardell <[EMAIL PROTECTED]> wrote: > FWIW, we find most "leaking" rear mains really aren't. It is usually the > CAS o-ring running all the way down, or occasionally a head gasket (if a > 1.6). Pretty sure we've never seen a rear main brg fail by itself. I agree > with Ray that a failing rear main brg would cause the seal to fail, just > don't recall seeing it happen on a Miata. > > > Bill Cardell > TurboDog's Dad > www.flyinmiata.com > www.fmwestfield.com > orders 1-800-FLY-MX5S > Before you call our tech line (970.464.5600) please check out the > *FAQ*<http://www.flyinmiata.com/FAQ/>section of our website > > Don't miss Flyin' Miata's Open House! Aug 14-17, 2008 > > > ------------------------------ > *From:* [EMAIL PROTECTED] [mailto: > [EMAIL PROTECTED] *On Behalf Of *Ray Ayala > *Sent:* Saturday, June 21, 2008 10:04 AM > *To:* Robert McElwee > *Cc:* miatapower List > > *Subject:* Re: Tips for Installing a new rear main seal ??? > > Changing the main bearings, any of them, requires pulling the pan. Once > that's off you might as well replace all of the main and rod bearings > because they're all probably equally worn. It's always possible though > rather unlikely that the rear seal was just defective, and it can be changed > when the flywheel is off. And while the trans is out its also easy measure > how far the crank can move in a the fore/aft direction to check the thrust > bearing wear ... a separate possible (and fairly common) problem. > > ----- Original Message ----- > *From:* Robert McElwee <[EMAIL PROTECTED]> > *To:* Ray Ayala <[EMAIL PROTECTED]> > *Cc:* miatapower List <[email protected]> > *Sent:* Friday, June 20, 2008 9:47 PM > *Subject:* Re: Tips for Installing a new rear main seal ??? > > Hmmm, how do I know if the bearing is gone? After changing the clutch/pilot > a few years ago I immediately started getting a slight "bearing noise" > while decelerating. I haven't noticed it much lately but I am sure it is > still there. > > The car has 105K miles on it and started leaking about 5K (6 months) ago. I > am not a gear head and not exactly sure what changing the rear main bearing > entails. Is this something that can/should be done when I change this seal. > > > On Sat, Jun 21, 2008 at 12:38 AM, Ray Ayala <[EMAIL PROTECTED]> wrote: > >> FWIW (and YMMV) rear engine seals don't usually go bad until prompted to >> by a worn out rear main bearing. >> >> ----- Original Message ----- >> *From:* Robert McElwee <[EMAIL PROTECTED]> >> *To:* Ray Ayala <[EMAIL PROTECTED]> >> *Cc:* miatapower List <[email protected]> >> *Sent:* Friday, June 20, 2008 9:20 PM >> *Subject:* Re: Tips for Installing a new rear main seal ??? >> >> Rear engine seal (I hope). Oil coming from the weep hole in the bell >> housing. I'm half a quart down right now on the engine oil so I am assuming >> that is it. I guess we will find out when we pull it. >> >> Definitely not CAS o-ring (recently replaced) due to the weep hole leak. >> >> On Fri, Jun 20, 2008 at 10:46 PM, Ray Ayala <[EMAIL PROTECTED]> wrote: >> >>> Rear engine seal or front trans seal? (or CAS o-ring?) >>> >>> ----- Original Message ----- >>> *From:* Robert McElwee <[EMAIL PROTECTED]> >>> *To:* miatapower List <[email protected]> >>> *Sent:* Friday, June 20, 2008 2:07 PM >>> *Subject:* Tips for Installing a new rear main seal ??? >>> >>> My oil leak is getting a little worse and I think I am close to pulling >>> the seal and replacing it. I have had a new seal laying around forever but >>> have been too lazy to pull the tranny and do the work. I know how to pull >>> the tranny but anyone have tip for pulling the seal or replacing it? Just >>> looking for any little tricks you guys may have up your sleeve... >>> >>> >>> -- >>> Robert McElwee and Blue Flash >>> "The 40 MPG Miata" >>> www.lightweightmiata.com/mpg >>> >>> Lightweight Miata Forum: >>> www.lightweightmiata.com/forum >>> >>> The Miata Trailer Project: >>> www.lightweightmiata.com/trailer >>> >>> ------------------------------ >>> >>> _______________________________________________ >>> Miatapower mailing list >>> [email protected] >>> http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower >>> >>> >> >> >> -- >> Robert McElwee and Blue Flash >> "The 40 MPG Miata" >> www.lightweightmiata.com/mpg >> >> Lightweight Miata Forum: >> www.lightweightmiata.com/forum >> >> The Miata Trailer Project: >> www.lightweightmiata.com/trailer >> >> > > > -- > Robert McElwee and Blue Flash > "The 40 MPG Miata" > www.lightweightmiata.com/mpg > > Lightweight Miata Forum: > www.lightweightmiata.com/forum > > The Miata Trailer Project: > www.lightweightmiata.com/trailer > > -- Robert McElwee and Blue Flash "The 40 MPG Miata" www.lightweightmiata.com/mpg Lightweight Miata Forum: www.lightweightmiata.com/forum The Miata Trailer Project: www.lightweightmiata.com/trailer
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