Crank Case Pressure.

[force_feed]

I had a car come to me to diagnoses a problem!

I know that the dip stick popping out is a common problem with DSM's, mainly under boost. The car I'm working on does it while the car is sitting in my drive way and reving it to about 5k.

When I pull the dip stick while its idling, steam will come out of the tube. I've replaced the PVC valve.

A little back ground on the car. The owner told me he rebuilt head (decked .060!!!!!) with a Cometic head gasket. Thats when the problem started.

Any ideas? I'm thinking the head gasket and/or the head is the problem.

 

[Dsmj89]

Bad piston rings ?

 

[gbradley]

To use a MLS headgasket the block's deck needs to be perfectly flat with no imperfections as well as the surface of the head. I recommend pulling the head and checking both mating surfaces with a flat edge and feeler gauges.

 

[boyd0069]

i would agree with bad piston rings i just made it back from iowa to new york and at 900 miles into the trip my engine broke my oil cap off and ate some of it......well babied her home the last 100 milesbut i made it and went to start it today and nothing clean oil and anti freeze catch can clear but i would definately say the rings.

 

[LTUDSM]

check the compression ,do you have any smokes commin out of your tail pipe??? is there any oil leak on the left side corner of exhaust manifold???

 

[Defiant]

How about if you start with the obvious, easiest problem: your dipstick's O ring is used up. Either replace the ring, or get a whole new dipstick from one of the Graveyards.

 

[force_feed]

thanks for all the help guys!

I will try everything later today.

 

[blktalon3]

Also I wouldn't assume the pcv valve isn't leaking just because it's new especially if it's not OEM.

 

[force_feed]

What is the service limit on our heads?

With the head being decked this much, what head gasket do yall recommend?