Heavy Breathing (No, not that)

[Frederic Breitwieser]

>Sounds like good old fashioned GM Blow By to me.  Not much you can do about
>it.  Change compression rings possibly.  Use a good oil vapor seperator on
>the valve cover breathers and a PCV valve to suck the vapors down the engine
>to keep the mess off of the outside of the engine.

I concur here... high compression GM engines quite often have blow-by
problems... know my big block engine does all the time... we reduced (but
not eliminated it) this problem by replacing the rings with a different
type, with a smaller ring gap.


Frederic Breitwieser
Homebrew Automotive Mailing List
Bridgeport, CT 06606
http://www.geocities.com/MotorCity/Downs/4605/index.html
1989 AG Hummer 4-Door
1993 Supercharged Lincoln Continental
2000 Mid-Engine Sports Car <smile>

Seeking info on: Audi 5k Locking Diffs, Audi 5k trans bolt pattern, and
17x11" rims.





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