Oil smoke on N/A..uncommon syptoms

[TylerW]

Hey everyone:

I picked up an '81 LeMans wagon as a future project, and the 231 in it is going through a lot of oil real fast.

It is oiling heavily on cylinders 1 and 2 only, the rest look fine.

The compression test revealed 120lbs across the 4 dry cylinders, the two oilers showed 140lbs.

There's no discernible blowby, no oil in the air cleaner either, but there's a lot of oil residue in the carb.

That said, the engine runs very well, no noise.

There is no cloud of smoke upon startup, just a steady fog whenever the engine is running.

I have a suspicion, but I'd like to hear other opinions..thanks guys.

 

[Freddie's Buick]

[FONT=Times, Arial]Oil seals....probably as hard as stone by now. [/FONT][FONT=Times, Arial]The[/FONT] [FONT=Times, Arial]25506293 heads dont use oil seals on the exhaust side. They only had oil seals on the intake side, (valve seals....umbrella seals all the same thing). If it's the original engine those heads came on the '81 3.8's.

You'd want to consider having a machine shop upgrade the heads by installing oil seals on the exhaust side just like the later 3.8 engines do.

Anyway, it seems like you need work on the valve-train area. Not the bottom end. :biggrin:
[/FONT]

 

[alec296]

pull the valve cover and check the return holes ,if they are pluged the oil
will be pulled thru the valveguides even faster
but with a steady fog and it being the most forward cylinders
i would look at head gasket seepage
that motor should be steel head gasket which can rust out