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-   -   smoking from engine / oil loss (http://www.toyota-supra.info/forums/mkiii-supra/17488-smoking-from-engine-oil-loss.html)

Green7mgte 07-27-2010 02:51 PM

smoking from engine / oil loss
 
high guys problem with smoking on left side of engine twords the front and oil loss.

I removed my intercooler pipes and found a small amount of oil leading into the intercooler. also a trace amount in the accordion hose. and the 3000 pipe. so I know its time for my turbo to be rebuilt. But I don't see my turbo with only showing trace amounts of oil leakage creating a plume of smoke creeping from under my hood whenever I shut my car down.

smoke is comming from left side (turbo side) of the engine Near the Front behind the thermostat housing. any suggestions on were to go from here for proper diagnostics and replacement. Im leaning twords blown oil seals? any post you have bookmarked please pass my way as I am currently searching through the pages.

can we also go over the possibility of a clogged pcv? But I don't really see any of my air hoses being clogged. its possible tho.

as always, thanks for any input and guidance.
thanks in advance
Green7mgte.

cre 07-27-2010 03:05 PM

Quote:

Originally Posted by Green7mgte (Post 86206)
But I don't see my turbo with only showing trace amounts of oil leakage creating a plume of smoke creeping from under my hood whenever I shut my car down.

can we also go over the possibility of a clogged pcv? But I don't really see any of my air hoses being clogged. its possible tho.

as always, thanks for any input and guidance.
thanks in advance
Green7mgte.

that would be the right side actually. it's decided from the perspective of the seated occupant. ;)

the outside leak could be coming from the distributor.

actually, oil exiting into the intake indicates the pcv is doing its job... if there is a lot you may have excessive blow by.

Green7mgte 07-27-2010 03:18 PM

meaning the Cam positioning sensor? maybe the packing in there is worn?
that location is just about were the smoke is coming from? would that leak oil? the packing or the O ring?

Bill UK 07-27-2010 08:06 PM

Yep, that definitely sounds like the cam positioning sensor O ring Part # 9099-14018. The oil drips on the front part of the exhaust heat shield, as soon as you lift the hood you can smell oily fumes. Link O ring marked with a yellow arrow in pic.

cre 07-28-2010 01:49 AM

Sorry, wasn't thinking... for this dialogue they're the same though... The dizzy and CPS both have an outer seal and both can also leak internally (not something that's easy to remedy). Take the cap off the CPS to see if there's oil on the inside which is escaping through the weep in the bottom of the CPS housing. The O ring I recommend just replacing, you've got to pull the CPS to check it anyway and it's DIRT CHEAP.

SOME oil in the intake is normal from both the PCV system and from the turbo's oil seal... there are ALWAYS oil vapors being carried with the blowby gasses being removed by the PCV system and there is ALWAYS oil escaping the turbo's oil seals. HOWEVER, this oil should not accumulate in any appreciable amount in a few months time. On an older MKIII I'd say that more than a table spoon of oil drained out of the intercooler after cleaning it out three months prior is way too much, BUT still plenty driveable. If you're seeing a loss of half a quart between fuel fillings I bet there's a decent amount of that sitting in the Ic and it's time for an overhaul.

Green7mgte 07-28-2010 01:51 AM

I do see about half a quart or more between every couple fill ups. what do you mean overhaul? a good IC cleaning or an engine rebuild.. gasp*
I can see my oil dripping from the bottom of my engine. Left side beneath the manifold twords the front. bottom of the engine, right were the block meats the oil pan. could this be an internal leak from the cps
whats a recommended step along with check for leaking in the cam sensor.

cre 07-28-2010 02:00 AM

You need to fix ALL external leaks before you can be sure how much you're loosing internally... BUT the amount which collects in the IC is a good indicator as to where things are.

I meant a rebuild when I said overhaul... shouldn't have used that term, it's vague.

Green7mgte 07-28-2010 02:05 AM

hmm. well a rebuild has been on my mind for some time.

i only see trace amounts of oil. less then a 1/4 tsp consisting of all trace found. But I do loose about 4 quarts every 3 weeks or so.. :(
so for cleaning the Ic is there some sort of detergent? or would a good squirting with some distilled water or the garden hose work?

dizzy.. ='s distributor. dur. its been a long day.

cre 07-28-2010 03:20 AM

4 quarts in 3 weeks!!!???! :eek2::eek2::eek2:


Damn, that's too much for your average sick engine...


Clean the IC with gasoline or kerosene, then filter it and use it in the lawnmower. ;) Works very well... oh, not the kerosene... the gasoline works well in a lawnmower.

Green7mgte 07-28-2010 01:58 PM

I need to touch on a couple other leaks while we are here.

as i mentioned I see a drip coming from were the block meets the oil pan. perhaps the oil pan gasket is leaking? is that common? is it a hard fix? I heard something about the removing of the oil pan is a pain in the arse. true?

what about the upper and lower timing belt over gaskets?
forgive me if im a tad scattered. just trying to find all possible suspects before I order parts and mid breakdown only to say "shit!" i need this!

so to recap. I definitely see a leak.. coming from the above mentioned.. mixed with a fair amount of smoking makes up for my oil loss. now to pin point the issue, cps o ring. check, will replace that and hopefully see no smoking. Did the #3 valve cover fix, still see some pooling, might just be from the plugs had excess oil in them maybe its coming from the valve stem seals. idk either way I wish to address the 2 above problems. good solid lead on the smoking now want to plug the dripping. any suggestions or places to look?


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