GreekDrifter91

i finaly got to fix my real bad coolant leak it was the hose that goes to the rear iron up to the TB. and put a check valve on the brake booster so i now have functioning brakes under boost.


the only thing left is my car still smoke a lot, it is oil that is burning so im thinking that i may have a suck seal/ oil control ring. and im getting to much oil in the chamber.

the car would sit for long periods of time and so im thinking it could be a seal. then i went to autox with it and it smoke up real bad when i would let off the gas.

anyway ow that im driving it more often it seams it dosent smoke up as bad. seal coming free?

you think running some seafoam through the the engine and in the oil will free up any stuck seals?

RotaryEvolution

iTrader: (30)

oil seals don't really stick, the o-rings may have hardened over time and are becoming more pliable with use but usually they never fully are cured once the issue starts.

you can try seafoam or some of the "no smoke" products as a temporary solution.

nepopolus

check your turbocharger,The fact it is burning oil under high rpm load could easily be the oil seal in your turbo. This is exactly how the hybrid I purchased showed signs of death even without shaft play.

GreekDrifter91

hope its not the turbo it was rebuilt by bnr and upgraded to stage 2, and i rebuilt the motor at the same time. so it has the same mileage as the motor maybe no more than 10k miles. ill keep looking and run some seafoam to see of it helps. if not a seal could be gone im gonna take a look at the plugs to see what color they are. to see of its an engine internal leak.

RotaryEvolution

iTrader: (30)

if it only has 10k on the engine i would lean more towards the turbo.

the BNR turbos like to eat turbine seals for some reason.


and for future reference, give relevant info. i wasn't even assuming this was a turbo engine since they are only 1/10 the population.

GreekDrifter91

well damn, i didnt want to have to pull it out.

sorry will do next time.

GreekDrifter91

is there any way to pin point the source of the leak? i dont think its an internal engine seal, but is there any way to test to see if it is the turbo or engine.

also isnt it a little early for freshly built turbo to go? its got the same amount of miles the engine does. and i make sure to let it cool down propery befor i turn the engine off.

RotaryEvolution

iTrader: (30)

about the easiest method is to run the engine up to the point that it smokes then shut it down. remove the turbo and inspect the exhaust ports on the engine, if there's any sign of wet oil on the exit sleeve at all then the internal oil seals in the engine are having issues.

if the engine is dry check the turbo, usually you will see oil on the turbine wheel or exhaust outlet and the turbo inlet will be dry, meaning the turbine seal gave up.

generally if there is oil on the plugs it is the engine(unless you premix heavily), sorry to say.

some of the problem is excessive oil pressure to the turbo, the turbo really is not designed to carry oil pressure in excess of 40psi even on a thrust bearing stock turbo(half that for a ceramic BB turbo). any oil mods or inadequate crankcase breathing will make this problem worse, if the oil pressure is not regulated(restrictor). the stock oil line is somewhat of a restrictor, but still not enough to cope with the above.

GreekDrifter91

a little more info to add....

maybe something to blame was to heavy of oil and cheap oil... my brother bought some cheap oil think it was called supertech its in a blue jug at walmart. anyway it was 20w-50. we were using that to fill up as oil was being used over this very hot summer. went and did a oil change because i had sea foam in the oil, used the oil i had to do the change. started it up everything was fine. start to drive smoke everywhere any amount of throttle cause it to smoke up really really bad. so i went and picked up some new name brand oil right away. thinking it was bad oil. got 10w-30 and i dont smoke anymore, just when i really rev the heck out of the engine.

and here are pics of the spark plugs. they tell a story. why is the rear rotor more pluged up stuck seal making oil go in and burning up? anyway i cleaned them up and put them back in.

I still need to look at the turbo to see if its go oil coating the compressor and the turbine. but im beggining to think its an internal problem based on the plugs.

Front Trailing then Leading






Rear Trail then leading

RotaryEvolution

iTrader: (30)

i will say this...

a healthy engine will accept just about any oil you toss into it without all the moaning.

GreekDrifter91

oh i hear you, i use just about anything for oil this is the fisrt time i have had an issue, thats why i freaked out a little bit. but switching to a lighter weight did help the problem, but did not solve it, i just dont have the time tight now to rip open the engine and see what has happend.

also do you think it could be a side seal? i have noticed that only under vacuum it blows smoke, when on boost and low vacuum maybe 5-10 inmg it doesnt do anything...... you know under vacuum it suck oil in and under boost it pushes it back out.

RotaryEvolution

iTrader: (30)

high RPM leakage is usually a worn out oil seal(o-ring). why they would be worn out in 10k miles i can't answer, it could have been the cheap oil or it could have been reused parts that should not have been reused.

BUT for some reason i have n/a on the brain lately... have you done any testing of the turbo yet? the plugs don't look horrible so it could simply be a worn out turbo.

GreekDrifter91

every single seal was replaced with a new one, when i rebuilt the engine. no i havent looked at the turbo yet thats my next step and dont worry just look at my sig if you get confused.

RotaryEvolution

iTrader: (30)

i know the turbo is a pain in the *** to pull out. you can start by just pulling the downpipe and see if the turbine wheel is wet with oil after running the engine up to smoking and shutting it off.

VANHALEN

iTrader: (3)

You still have the PCV valve hooked up ?

geopouros

iTrader: (1)

I had smoke on my car as well for a long time every one was telling me this and that
My engine was new and the turbo olsow
At the end my proplem was the turbo
U have to check
1.if u have oil in the cold site chech the oil breather
2.if u have on the hot site check the oil feed and return

My had a proplem on the oil feed it was to big for the new turbo i god a smaller one and end of story!!! Never smoked again

GreekDrifter91

no pcv hooked up

ill check the turbo tomorrow hopefully, ill report back after i check turbo.

GreekDrifter91

hehe well i never checked the turbo... but i just did a compression test tonight tell me what you guys think..... (finally had time to even just do this, let alone look at it.)

just now while reviewing the video i was wondering why it was readinf so high i was not holding the release button. but the schrader valve was out. it only appears to be double the psi from a normal comp test. do i need to redo the comp test? so far engine looks healthy so it must be the turbo causing all the oil to leak and be burned.

Both Leading plugs out. the cho cho cho sounds normal....



Front Rotor



Rear Rotor

GreekDrifter91

just a question but i thought it was supposed to be at 35psi for each pulse.

i also forgot to take an over all compression for each rotor which i read is supposed to be 115psi