Blue smoke out breathers

racer5252

Member
What is one of the most common problems that would cause a lot of smoke to come out both valve cover breathers? I tried a new PVC valve. The warmer it gets the more smoke, when I rev it up it pours out. Motor has less than 3000 miles on it.


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Chuck Leeper

Toxic old bastard
Staff member
Broken ring, cracked piston, valve seal hammered by the retainer, poor cyl prep, excessive ring end gap, rings on wrong, blown head gasket....LOTS of places to look.
Leak down test is a start.
 

earlbrown

runs with scissors
If you have antifreeze in it, I would recommend getting it out yesterday if not sooner until you verify it's not coolant burning.
 

racer5252

Member
I haven't had a chance to tear into it yet but my oil and antifreeze are completely clean. Also there is no smoke at all out the exhaust, only the breathers.


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racer5252

Member
I know it's been a while but I finally tore into it and it did end up being the head gasket blown in the number one cylinder, which was leaking into the intake.
Thank you everybody for all the advice


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