Xoutpost.com - View Single Post - Head gasket, Oil Separator, or something else

JCL · #4 03-26-2008, 12:03 AM

Quote:

Originally Posted by aftorwar

Thanks Jeff! a couple follow-up questions:

If its the oil separator, once thawed will the white smoke go away? If so, after how long (parked in the garage overnight, started this morning, still lots of smoke after 2 minute idle. shut engine off in the event it's not the oil separator).

Do you recommend I change the valve cover gasket too? If pressurized, I'm trying to think of what might have failed that I ought to replace while DIYing the oil separator.

Any other thoughts on inspections that would indicate blown head gasket?

White smoke is moisture in the combustion chamber or exhaust. How long it lasts after starting depends on how much moisture is in there. It could take really warming it up.

Valve cover gasket only needs replacing if it is leaking. It is the usual failure point with a pressurized crankcase. If it isn't leaking, leave it alone, unless you want to do it for a preventative step while you are in there.

A head gasket can fail between several different places; the combustion chamber, an oil gallery, a coolant jacket, or to the outside. If it fails between the combustion chamber and a coolant jacket (which is what you suspect, since that is the path that puts coolant in the combustion chamber) then you should see a low coolant level, and with the engine running, bubbles will often show up in the header tank.

I would assume it is the separator, replace that and the hoses, and then go from there.

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