miko_supra Posted September 23, 2008 Share Posted September 23, 2008 just drove the car and after a hard pull and then slowing down to a set of traffic lights, a bit of blue smoke came sweeping past and a strong smell of oil. Took it back home and revved it a little and after a few a little puff of blue smoke appeared again. Ideas anyone? Quote Link to comment Share on other sites More sharing options...
Carl Posted September 23, 2008 Share Posted September 23, 2008 Turbo Seals possibly. Assuming de-catted, very little back pressure through exhaust, often pushes oil through the seals on the turbo. I had a lot of problems with mine on a previous car setup. Just my pennies worth. Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted September 23, 2008 Share Posted September 23, 2008 Could also be Valve Stem. Its the typical blue smoke issue. A lot of info on this if you search. As far as I can figure its the Valve Stem if you see blue smoke when setting off from a stop and the occational puff at startup. Its the turbo seal if you also see smoke on boost and in general any other times that when setting of from a stop (when the engine as been on vacuum) Quote Link to comment Share on other sites More sharing options...
miko_supra Posted September 23, 2008 Author Share Posted September 23, 2008 (edited) I dont think it is the valve seals as there is never any blue smoke on start up. Took it out again and it didnt suffer from any smoke Edited September 26, 2008 by miko_supra (see edit history) Quote Link to comment Share on other sites More sharing options...
Homer Posted September 23, 2008 Share Posted September 23, 2008 It's by no means definative, but pull off an IC pipe and see if there's any fresh oil residue in there. It can be an indication of a turbo seal issue, at least on one side Quote Link to comment Share on other sites More sharing options...
miko_supra Posted September 23, 2008 Author Share Posted September 23, 2008 I took the intercooler pipe off leading into the intake plenum, and there was a general mist of oil, in the pipe and in the intake. I'll take a picture when i have my camera handy tomorrow Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted September 24, 2008 Share Posted September 24, 2008 Mine are almost dry, the BOV vents a bit of oil, needing to be wiped after a few thousand miles, so pretty dry. But the other day I took the buttom IC pipe of and down there were a bit of oil. So bear in mind where you check. I dont know what to gather from my findings though. Quote Link to comment Share on other sites More sharing options...
miko_supra Posted September 24, 2008 Author Share Posted September 24, 2008 OK i checked the intercooler pipes turbo side and intake side and they seem to have just the same about of misty oil in them as they always have. I've done a compression test as i am getting a smell of fuel in the oil. http://mkivsupra.net/vbb/showthread.php?t=162883 It's definatly only smoking when the engine is revved...never on start up or idle Quote Link to comment Share on other sites More sharing options...
bodilx6 Posted September 25, 2008 Share Posted September 25, 2008 Ok, doesn't sound like the stem seals. For it to be them, you would puff after idleing shortly. Fx when you move off from full stop or stop light. Bit weird since i would think turbo seal would leave a moderate amount of oil in the IC pipes Quote Link to comment Share on other sites More sharing options...
miko_supra Posted September 25, 2008 Author Share Posted September 25, 2008 Ok, doesn't sound like the stem seals. For it to be them, you would puff after idleing shortly. Fx when you move off from full stop or stop light. Bit weird since i would think turbo seal would leave a moderate amount of oil in the IC pipes Is it not possible that the turbo seal on the exhaust/turbine side could have failed, thus just putting oil into the exhaust rather than the compressor side...If that is possible, im not to clued up on the construction of these turbos Quote Link to comment Share on other sites More sharing options...
miko_supra Posted September 26, 2008 Author Share Posted September 26, 2008 well reading on the forums it seams that i have a turbo seal problem. i'll write the next bit up to help any others that might stumble across the thread in the near future with similar issues... The problem... When i come to a rolling stop i get white smoke coming out of the exhaust, as well as after a little blip from the throttle. Tests... No smoke on start up so it isn't the valve stem seals Compression test suggests piston rings are fine and the head gasket isn't leaking. No mayo in the oil cap and the water in the radiator is holding steady so no cracks in the block either. Pulled the intercooler hoses off and there is no excessive oil deposits in there and the spark plugs were also in good condition- no white deposits, which would indicate oil getting into the combustion chamber. So there isn't a leak on the turbo compressor side. Which leaves me to believe that the turbine/exhaust side of one of the turbos is leaking oil. I'll pull them apart in the week to see if im right, and then its probably a hunt for some j-specs before santa pod! Quote Link to comment Share on other sites More sharing options...
dan4 Posted September 27, 2008 Share Posted September 27, 2008 you wont see a lot if you are thinking of inspecting the turbo's mate your compression results suggest possible that you have valves leaking so could still be valve stem seals/worn valve guides, i had funny symptoms from mine but ended up being that Quote Link to comment Share on other sites More sharing options...
miko_supra Posted September 27, 2008 Author Share Posted September 27, 2008 you wont see a lot if you are thinking of inspecting the turbo's mate your compression results suggest possible that you have valves leaking so could still be valve stem seals/worn valve guides, i had funny symptoms from mine but ended up being that But i dont get any smoke on start up and my spark plugs show no signs of oil contamination Quote Link to comment Share on other sites More sharing options...
dan4 Posted September 27, 2008 Share Posted September 27, 2008 my plugs showed no signs of oil contamination, randomly smoked on start up you cannot diagnose your car from forum responses you still have to do some work otherwise you will find ppl throw answers at you from everywhere and you spend money fixing things that arent broke. That said it "could" be turbo seals but smoking is sometimes a can of worms leak down test will give you an accurate answer on your compressions, maybe you can get a borescope to inspect bores for scoring. Quote Link to comment Share on other sites More sharing options...
merckx Posted September 28, 2008 Share Posted September 28, 2008 you wont see a lot if you are thinking of inspecting the turbo's mate My van was smoking like mad too, not on start up but when it warmed up. No excessive oil in the intake pipes either. I removed the intake pipe to the turbo, I could feel that there was a fair amount of radial play on the shaft so I fitted a reconditioned turbo which fixed the problem. Quote Link to comment Share on other sites More sharing options...
miko_supra Posted September 28, 2008 Author Share Posted September 28, 2008 my plugs showed no signs of oil contamination, randomly smoked on start up you cannot diagnose your car from forum responses you still have to do some work otherwise you will find ppl throw answers at you from everywhere and you spend money fixing things that arent broke. That said it "could" be turbo seals but smoking is sometimes a can of worms leak down test will give you an accurate answer on your compressions, maybe you can get a borescope to inspect bores for scoring. Boroscope would be fun anyone know of a place that supplies cheap ones. I dont think work would let me borrow one Quote Link to comment Share on other sites More sharing options...
dan4 Posted September 28, 2008 Share Posted September 28, 2008 they are not cheap lol Quote Link to comment Share on other sites More sharing options...
miko_supra Posted September 29, 2008 Author Share Posted September 29, 2008 they are not cheap lol balls Quote Link to comment Share on other sites More sharing options...
skaeley Posted May 2, 2009 Share Posted May 2, 2009 well reading on the forums it seams that i have a turbo seal problem. i'll write the next bit up to help any others that might stumble across the thread in the near future with similar issues... The problem... When i come to a rolling stop i get white smoke coming out of the exhaust, as well as after a little blip from the throttle. Tests... No smoke on start up so it isn't the valve stem seals Compression test suggests piston rings are fine and the head gasket isn't leaking. No mayo in the oil cap and the water in the radiator is holding steady so no cracks in the block either. Pulled the intercooler hoses off and there is no excessive oil deposits in there and the spark plugs were also in good condition- no white deposits, which would indicate oil getting into the combustion chamber. So there isn't a leak on the turbo compressor side. Which leaves me to believe that the turbine/exhaust side of one of the turbos is leaking oil. I'll pull them apart in the week to see if im right, and then its probably a hunt for some j-specs before santa pod! Hi Mike, I was wondering what it turned out to be ? I have a similar problem, any help appreciated . Thanks, Quote Link to comment Share on other sites More sharing options...
_Shane_ Posted May 2, 2009 Share Posted May 2, 2009 out of interest how much is it to do the valve stem seals Quote Link to comment Share on other sites More sharing options...
skaeley Posted May 3, 2009 Share Posted May 3, 2009 out of interest how much is it to do the valve stem seals AFR Tuning have the tools to do it without taking of the head for approx £500+VAT. Great service and a lot of experience in one place (Dude & Muffleman). I am glad I approached it this way, as my problems are more than the valve stem seals. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.