rb25 smoking

[bvr463]

would anyone know what it is?

if i push the gas i get white smoke coming out of my valve cover breather valve?
smells like oil. No smoke out of exhaust, nor does it smoke at idle, only when i push gas.

any info will help, thank you

[enderr]

head gasket?

[EnemyS15]

Im going +1 to head gasket

[KevinEdgar]

Definitely head gasket, don't even run the motor until you replace the head gasket. Not fun having it blow out on you on the side of the highway...

[bkt808]

im going to say its blow by. is there coolant in the oil? (milky colored oil?) or oil in your coolant? if it was a blown hg i dont understand how it would be smoking out the breather and not out the exhaust.

[fliprayzin240sx]

I'm thinking blow by too. I'm just not 100% sure of how the crankcase pressurizes the head. I know the head has more oil drain on the exhaust side and so it pressurizes the intake side more after reading an aritcle from MJR.

[OutToWinPAHC]

how are you venting your crank case?

[bvr463]

thanks for info, i dont think its my HG, but i do think it could be my valve stem seals leaking. In couple weeks,i will have time to work on car, will let you know.

once again thank you.

[Huntsman2007]

Do you have a compression tester? When my old motor started pressurizing my crankcase, I found out I had low compression in two cylinders.

[benwaldeny]

don't even run the motor until you replace the head gasket. Not fun having it blow out on you on the side of the highwayhttp://www.maxin.us/imax/images/4.gif

[Yellow4g63]

could be a cracked ring on one of the pistons too.

[bvr463]

thank you for all your help and info, i am going to take the whole motor apart and rebuild it.

[BlewByYou]

Did you even have a one way check valve? Sounds like a venting issue. Something Simple.

[bvr463]

one way check valve? for? please explain.

[pogstar]

I think he is referring to the pcv system. Check out this thread for some ideas http://zilvia.net/f/showthread.php?t=235851