Usually if a sealant is req'd it is pre-coated on threads. Even if needed, this is unlikely the source of such a large leak. If oil is coming from above the pressure switch, then source is not the pressure switch. Find the gross leak, and then you might be able to detect if any oil is pushing by the switch threads.

good luck

 

still trying to figure out this problem.
So far nothing.

a few techs told my its my oil control rings, I'd like to verify that before I throw out the engine.

How would I verify oil control ring issues?

 

Well, oil-control rings would leak into the combustion chamber, not onto the side of the engine. So maybe it's a combination of different problems? How much is leaking OUT? Does it seem to account for the quantity you're losing?

 

from what I understand, leaks from gaskets, unless its the oil pan/pressure switch are not easy to measure using the dipstick.
The amount is just too small.

I have a small dizzy o ring leak and valve cover gasket. none of those would account for a quart every 100 kms.

 

When you park your car install a cardboard sheet under the engine. If leaks are source of large oil less, you should see a substantial amount of oil after a short drive 10-20 kms (1-3 oz). If only a few drops, oil is likely being burned by engine.

Pull spark plugs and examine for evidence of oil burning. Lot's of carbon buildup would be likely.

Also check inside of air intake duct downstream of PCV air intake (about midway). Is it wet w/ oil? If yes, the PCV system is not working correctly and oil vapor from engine is being pulled into engine. This can be caused by faulty PCV hose or PCV valve, or simply a very worn engine w/ lots of blowby pressure.

good luck

 

What would I be looking for on my plugs? Black dry deposits? Ash deposits? Actual oil?

PCV valve is new, hose has some gunk in it. I'll give it a good clean.

I tried the engine cap blowby test, cap gets sucked back into the valve cover, no smoke is visible from oil filler neck.

I'll pull plugs and post pics

 

ok, so I started the car,gave it some gas and saw a cloud of smoke come from the muffler.

Then when I warmed it up, i revved it a little bit, it puffed blue.

So I'm guessing the rings are toast.

Can this be concluded correct?

 

If you're getting blue smoke then you have oil getting into the combustion chamber. It's either coming from the bottom through the rings or the top through the valve stem seals/guides.

 

If while driving, you get steady stream of blue smoke which increases w/ higher load (hills), then rings passing oil is likely.

If car runs clean (no smoke) at steady speed, but begins to puff blue smoke after an extended idle and a large cloud is emitted on initial acceleration after a long idle, the valve stem seals are likely source of oil loss. Valve stem seals can be fixed in place w/o removing head. Check youtube videos.

Oil burning creates black, carbon deposits on plug exposed parts and can cause complete oil fouling (no spark possible) in worst cases.

good luck

 

valve seals and guides were replaced.

No smoke screen when driving as far as i can tell.

But considering the head was compeltely redone, that only leaves oil control rings or cylinder wall wear.

I'm gonna assume the oil rings are completely gummed up and the pistons are just pushing the oil past the exhaust valves into the exhaust.

I've tried degumming them with addtitive we get here in Europe, similar to GM engline cleaner, my compression seems to have gone up, power has improved along with idle and starting but it's still losing oil.

The rear main seal remains but due to the high labour costs to remove the transmission I'm hesitant to tackle it.