Ok so i am new with supras, and turbo cars for that matter. I just got my car back a month ago after the motor got rebuilt. Its not a stock motor nemore. A few weeks after i got it it started dumping white smoke out the exhaust and it smelt like oil. after a while i would just see less and less smoke. Well i changed the oil over the weekend and low and behold it started gushing out even more smoke! and this all occurs only while the car is at idle. It sounds like its miss firing to i am not sure. i am running .040" je pistons, stock rods, polished crank, clevitte bearings, 3-angle valve job(other then that stock head), all the seals and gaskets have been replaced, hks 1.4 MLS. i am also running a stock turbo. once again i am not familiar with turbo cars so much help would be great. thanks!
Dumping ALOT of white smoke at idle only. HELP!!
- Thread starter SupraDuD3
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Brand new rebuild....how many miles on the motor?? Have you broken it in yet? Im thinking probably the rings havent seated yet. Do a proper break in and then see if the syptoms go away. It took my rebuild about 140 to 170 miles to finally stop smokin. Oh also do a compression test that wouldnt hurt either.
Obviously white smoke = coolant/water.
You can try breaking it in and seeing what happens, but I wouldn't be suprised if you ended up tearing things apart again. If it's still pouring out white smoke after a break in you should DEFINITELY get the head checked for cracks and flatness/RA spec for the head gasket. Also check the condition of your turbo.
Check this for some break in tips:
http://www.supramania.com/forums/showthread.php?t=102856&highlight=break+procedure
You can try breaking it in and seeing what happens, but I wouldn't be suprised if you ended up tearing things apart again. If it's still pouring out white smoke after a break in you should DEFINITELY get the head checked for cracks and flatness/RA spec for the head gasket. Also check the condition of your turbo.
Check this for some break in tips:
http://www.supramania.com/forums/showthread.php?t=102856&highlight=break+procedure
sounds like the head gasket went out or the head is warped.. does the car over heat any when driving? have you checked your coolant level in the radiator after driving it? check under your oil cap, see if there is any milky white gunk under it. then agian it may not be the motor.. could be the turbo took a dump on you..
Checking under the oil cap isn't necessarly the best way of doing it, because you can get that gunk from condensation buildup in the crankcase which is pretty normal on short drives. If you drain your oil and put it into a see through jug (like a cleaned out milk jug or something), let it sit for an hour or two, you will definitely see if there's coolant in there or not. Oil will always sit on top of the water/coolant, so you can just crack your drain plug if the car's been sitting for a while and see if you get a bit of coolant dripping rather than oil.
supersupramk3;1397848 said:
the motor has ab 1300 miles on it now. so i would say its seated. i did replace the water pump and i believe ab that time is when it slowly went away. but when i changed the oil over the weekend it came rite back. do i have 2 "burp" coolant system? if so how do i do that?
did you retorque the head studs after about 500 miles? burping the system would really have nothing to do with it smoking alot. but to burp the coolant system, you jack the front end up as high as you can, take the radiator cap off, start the car and let it idle while the front is jacked up.. this allows the bubbles to work there way out of the system. Also get under the car and squeeze the lower radiator hose. This forces air pockets out and up into the radiator. And replace coolant as needed.
your studs may need retorqued then. your suppose to do that after about the first 500 miles of breaking it in.
its possible that they have backed out enough to where you'll have coolant/oil getting into the cylinders, giving you the BHG symptoms..If thats the case maybe you can save it in time before it causes to much damage.. I dont know. Do a compression test first.
I have pretty much the exact same setup and the same amount of miles on my motor.....
I also have the EXACT same problem too.
It is white smoke.... but it IS oil, I promise, you can smell it. My coolant level never drops and there is no milky oil.
It didn't start smoking until I installed a Driftmotion 57trim CT26 :nono:
I called then and they told me it was the valve seals and were dead set that it was not the turbo... Well, I had just installed new valve seals with the rebuild, and it doesn't smoke on startup like bad valve seals cause. I used a bore scope to check out the Cylinder conditions and they all look like the rings seated perfectly.
I let it idle and start smoking a bunch, and then shut it off and pulled the plugs. They all looked PERFECT, no oil, no wetness, nothing.
So what else can it be besides the turbo? Driftmotion didn't seem to want to admit to the turbo being at fault.
I also have the EXACT same problem too.
It is white smoke.... but it IS oil, I promise, you can smell it. My coolant level never drops and there is no milky oil.
It didn't start smoking until I installed a Driftmotion 57trim CT26 :nono:
I called then and they told me it was the valve seals and were dead set that it was not the turbo... Well, I had just installed new valve seals with the rebuild, and it doesn't smoke on startup like bad valve seals cause. I used a bore scope to check out the Cylinder conditions and they all look like the rings seated perfectly.
I let it idle and start smoking a bunch, and then shut it off and pulled the plugs. They all looked PERFECT, no oil, no wetness, nothing.
So what else can it be besides the turbo? Driftmotion didn't seem to want to admit to the turbo being at fault.
i still think SupraDud3 may have an issue with the turbo.. im not convienced its coolant thats burning.. when my old turbo went bad the smoke was really white in color as well. but was deffinitly oil burning.
There is a remote possibility that the vacuum valve on the PS pump has failed allowing PS fluid to be sucked into the intake. This would result in white smoke and an oil smell.
KMinAF;1399065 said:
I agree....I have had this happen before. PS fluid always low with white smoke. I finally took out the whole PS assymbly and problem solved. Although I now have no smoke I also have no PS. :aigo: If anybody know how to resolve this issue (jump in).
you smell oil not coolant right? how did you break in the motor? only ways to burn oil is rings, valve seals, hg, and the turbo.
Losing any fluid from your brake fluid resevoir? Your master cylinder could be failing and leaking fluid into the brake booster, causing this white smoke issue. Had it happen on my 1st Supra, I thought initially it was BHG but it wasn't....
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