Re: chevy 6 cyl
bruceb58 If it was my engine, I wouldn't bother changing the heads or adding the additive until performance was suffering. Have you ever tested the compression on this engine? How many hours on it?
i'm with bruce. though i do add lead sub. myself. but i aint changeing anything till something goes bad. and not adding lead from what i read is really non consiquential. something else will go wrong. then when yer heads off ya can do the hard seat thing.
75boater, have ya done any tune up stuff to yer engine? or done a compression test like bruce is talking about.
had me a coil on my L6 that wouldn't work when it got hot.
if ya think it's fuel pressure, do a pressue test of the fuel pump. i believe it's supposed to be 3.5-4.5 psi.......have ya replaced any fuel filters? in my 32 year old boat i've got some crap in my fuel tank. i've been R&Rin fuel filters pretty regular. slowly it's cleaning up too.......
instead of modifieing yer engine w/ a new carb and hard seats. try to get it right the way oem wanted it. after that, and ya got it runnin right, then ya can play with yer engine. if ya can find anything parts wise to play with, which i don't think ya can.....
what book ya useing too? ya really need a mercruiser book so ya know the facts if ya want to play........
