The importance. Of using premium fuel is that have little or no ethanol I'm it .regular fuel has up to 10% ethanol ....some premiums have less or even better no ethanol
DDrake 73 JH C&C 26 > On Aug 13, 2014, at 2:16 PM, Russ & Melody via CnC-List > <cnc-list@cnc-list.com> wrote: > > Hi Danny, > > You don't need to use premium gas in a relatively low compression engine > unless your fuel hose is not gas meth compatible (and maybe some ancient > injection equipment as found on old VWs, not the case here!). The higher > octane rating does not make it "better" gas but it does slow the burn rate. > > So, sooty plugs eh. To state the obvious: fuel too rich or more precisely > fuel/air ratio too high since we've ruled out plug heat range, low > compression and sticky oil wiper rings by virtue of Moyer rebuild. > Air side: > Is you air filter clean? engine space too tight? vent blower run continuous? > Fuel side: > main jet too big is already covered off by Moyer, float set too high? or what > I believe is the culprit... float needle valve not seating correctly or a bad > needle & seat (all it takes is a speck o' dirt there). > What is your fuel pump pressure set at? It could be too high. > > Cheers, Russ > Sweet 35-1 > east side o' Vancounver Island > clouds and showers on first of two weeks off :( > > At 08:43 AM 13/08/2014, you wrote: >> I am using champion RC12YC and using regular unleaded gas. >> >> I guess if I'm to use premium, I'm going to need to lug it to the boat in 5 >> gallon jugs... >> >> >> ---------- Original Message ---------- >> From: JOHN D IRVIN <john.ir...@rogers.com> >> To: Danny Haughey <djhaug...@juno.com>, "cnc-list@cnc-list.com" >> <cnc-list@cnc-list.com> >> Subject: Re: Stus-List Ok more atomic 4 issues...dammit! >> Date: Wed, 13 Aug 2014 08:38:52 -0700 >> >> Are you using a hot enough plug and premium fuel? >> >> >> On Wednesday, August 13, 2014 11:33:11 AM, Danny Haughey via CnC-List >> <cnc-list@cnc-list.com> wrote: >> >> >> ----- Forwarded Message ----- >> >> Alright, the saga continues. >> >> We went for a sea trial Sunday after the changes, i.e. Vent line cleared, >> filters changed, clamps tightened. The engine ran great all the way to >> Cuttyhunk. I probably ran it about 3 hours. Two of those hours I ran it a >> little harder than I normally do after having read Don M's reasons for >> having black sooty spark plugs. I thought my problems were solved. >> >> On our way home from cuttyhunk, We motored out the harbor and decided that, >> because the wind was a little light, we would motor home to run the engine >> some more. 50 minutes into our ride home, the same thing, only a bit slower. >> the whole, slow, stall happened over maybe a minute or two. Some sputter, >> then run normal, a little more sputter, then normal and then a slow stall. >> >> We then sailed home and into the mooring field. This is actually a benefit >> of the engine troubles, I've been a bit intimidated about sailing onto the >> mouth of the river due to the current and very tight channel flanked by >> shoals and some pretty ominous looking rocks. I've now had to sail into the >> harbor twice over this last weekend. At one point we were probably doing 4 >> or 4.5knts through the water but only 1 to 1.5knts over the ground fighting >> that current. On one side of the boat it a big, rocky cliff and the other >> shoal. it was a little adrenalin pumping! Anyway, the approach to our >> mooring was dead, head to wind, along with the current in the same >> direction, I lost forward motion under sail and started the engine. She >> started right up and we motored onto the mooring without incident. >> >> So, safely moored, I pulled the vent tube, it was clear. I then went below >> and pulled a spark plug and it was all black and sooty again after maybe 4 >> hours running time. >> >> I used the Moyer rebuild kit on the carb that is on there now. I'm not sure >> but, I think I changed the main jet to the moyer recomended one at that >> time. I think it came with the rebuild kit. >> >> My earlier idling issues seemed to have been solved by swapping out the carb >> that came with the exchange engine for the one I rebuilt off the original >> engine and had just sitting around as a spare. I think what I would like to >> do now is, clean up the carb that came with the exchange engine. and swap >> them back out. I'll then replace the plugs and run it some more. Unless you >> guys think I should maybe try another path forward. >> >> Danny >> >> >> >> P.S. Cuttyhunk was Amazing! >> >> >> >> Could be the carburetor. I've had this issue too many times. I chose to take >> off the carb, break it down completely and clean it out. Moyer Marine's A4 >> guide is very useful. >> >> Brian >> s/v Rekofa The Blue Whale >> 1979 C&C 34 >> Baltimore, MD >> >> Dr. Brian C. Morrison >> >> On Aug 10, 2014, at 9:48 AM, "Burt Stratton via CnC-List" >> <cnc-list@cnc-list.com> wrote: >> >> Good question. I suppose it is possible but seems unlikely. The fuel pump >> ought to be able to overcome that. Can you drain the trap? I would drain or >> remove the trap and try it. Try a new P-trap designed for the purpose. >> Might want to check the operation of your fuel pump. >> >> I just put my boat in the water for the first time and had a similar issue. >> 5 minutes and then stall. Starts back up after a short wait but won’t run >> for longer than about five minutes. Sort of ran if fully choked. Turned out >> to be a broken electrical feed to my electric fuel pump. Hard to believe how >> long it ran without a fuel pump! I guess gravity and vacuum will do part of >> the job, even through two filters. >> >> Skip >> >> From: CnC-List [ mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Danny >> Haughey via CnC-List >> Sent: Saturday, August 09, 2014 5:38 PM >> To: cnc-list@cnc-list.com >> Subject: Stus-List Ok more atomic 4 issues...dammit! >> >> >> >> >> -------- Original message -------- >> From: Danny Haughey <djhaug...@juno.com> >> Date: 08/09/2014 5:32 PM (GMT-05:00) >> To: derlic...@gmail.com,mda...@darkstar.ca >> Subject: Ok more atomic 4 issues...dammit! >> >> Okay so no wind today... >> >> I pulled up to the gas dock, topped off water and fuel, loaded up and away >> we went. Motor was running great! Fired up left dock, motored away. After >> about an hour she seemed to be running out of gas. Stutter ed and stalled. >> Five minutes later, after seeing sail, she started right back up. We sail >> back to our home mooring. I pull the filter on the sepertator, looked clean >> as the day I put it in. Then I thought, maybe the vent is plugged... well, >> it wasn't plugged but it is routed with a trap and that trap was filled with >> fuel. Would this have been enough to starve the engine? >> >> Danny >> >> >> From my Android phone >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> >> Email address: >> CnC-List@cnc-list.com >> To change your list preferences, including unsubscribing -- go bottom of >> page at: >> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> >> Email address: >> CnC-List@cnc-list.com >> To change your list preferences, including unsubscribing -- go bottom of >> page at: >> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> >> Email address: >> CnC-List@cnc-list.com >> To change your list preferences, including unsubscribing -- go bottom of >> page at: >> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >> >> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> >> Email address: >> CnC-List@cnc-list.com >> To change your list preferences, including unsubscribing -- go bottom of >> page at: >> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go bottom of page > at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >
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