Ulrik Posted August 6, 2006 Share Posted August 6, 2006 OK, valve stem seals will generally only give you problems when you start the car up. What is physically happening is that when you turn the car off, the oil that is in the valve train, is running down the valve. When it get's near the bottom there is a seal to stop the oil dripping into the combustion chamber. Over time the seal goes hard and doesn't stop the oil as effectively so the oil drips into the combustion chamber where it sits untill you start the car, when it get's burnt off and creates the tell tale blue smoke out of the exhaust at start-up. Also I found that I had quite high oil consumption. I didn't have any smoke at any time that I was driving, which you wouldn't unless you'd had a fairly catastrophic seal failure. If you're getting smoke on throttle lift-off then I would probably look at turbo seals. Then it must be the turbo seals for me then.... Since its on "throttle lift-off".... But im gonna go single next year or something like that... So i guess there is no use to get them fixed ? Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted August 6, 2006 Share Posted August 6, 2006 clicky This is when she is up to temp and idling for a while then a blip of the throttle..blip it again straight away and nothing..leave it and it does it again but not as bad:rolleyes: Quote Link to comment Share on other sites More sharing options...
Ric Posted August 6, 2006 Share Posted August 6, 2006 thats valve stem seals, 100% turbo oil seals will be puffing smoke all the time.. when on full boost you wouldnt be able to see behind you cus of the smoke check the iC pipes for oil, there should only be a thin coating if theres excessive oil in there then turbo seals but as i said if it was those it would be smoking all the time. Quote Link to comment Share on other sites More sharing options...
Marty Posted August 6, 2006 Share Posted August 6, 2006 id say turbo seals, defo. its happening when your revving the engine, running the turbos up. if it was your valve stems you'd be getting really bad plumes of smoke when you started it, for it to be as bad as it is when its running. is your car deccated? this doesnt help as it removes the backpressure off your turbos. If you wanted a quick and temporary solution, put your cat back on, it'll fix them for a good few k. This is what i did with mine:) until i could afford a single. Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted August 6, 2006 Share Posted August 6, 2006 thats valve stem seals, 100% turbo oil seals will be puffing smoke all the time.. when on full boost you wouldnt be able to see behind you cus of the smoke check the iC pipes for oil, there should only be a thin coating if theres excessive oil in there then turbo seals but as i said if it was those it would be smoking all the time. id say turbo seals, defo. its happening when your revving the engine, running the turbos up. if it was your valve stems you'd be getting really bad plumes of smoke when you started it, for it to be as bad as it is when its running. is your car deccated? this doesnt help as it removes the backpressure off your turbos. If you wanted a quick and temporary solution, put your cat back on, it'll fix them for a good few k. This is what i did with mine:) until i could afford a single. Quote Link to comment Share on other sites More sharing options...
Marty Posted August 6, 2006 Share Posted August 6, 2006 although im no mechanic, just my opinion from my experience, doesnt mean im right wouldnt have thought valve stems would pass that much when the engine is running, unless they were completely fooked!! turbo seals on the other hand, would smoke when the engine revved i woudve thought, as its spinning the turbos up. Mine did anyway Best get someone to look at it i recon matey, but not mr t. i remember a while back this happening on the forum to someone, mr t said valve stem seals, changed them for a good wack, and it turned out to be the turbo seals. Quote Link to comment Share on other sites More sharing options...
Ric Posted August 6, 2006 Share Posted August 6, 2006 if it was turbo seals then it would happen everytime to rev the car. Valve stem seals only burn the oil every few seconds because its the force of gravity which lets the oil past the buggered seals Overnight oil will leak down and be burnt when you start it. Leave it for a while and the oil will again to leak down the seals with the force of gravity and blip it again... pufff But rev it again stright after and not enough time has been given for the oil to drip down past the seals so it doesent do it again.. If the turbo oil seals had gone it would be leaking everytime the turbo spooled up and it would be pretty constant as oil is always flowing through the turbos Quote Link to comment Share on other sites More sharing options...
skaeley Posted August 6, 2006 Share Posted August 6, 2006 I think the video clip captures the problem nicely......but we still have two possibilities ! It would good to widen the debate, we have had some very good input from the guys above, I am not sure who else we could involve on the technical front.... The solution to this problem is bound to be of interest to plenty of other people on the forum, if not now certainly in the future ! Quote Link to comment Share on other sites More sharing options...
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