Conrad Posted June 29, 2006 Share Posted June 29, 2006 My Supra has always had the tinyest amount of blue smoke on start up which I could live with. But since going BPU the inevitable happened and now it's a whole lot worse. Trouble is I started getting paranoid after I thought I saw blue smoke whilst pulling out a junction (I was following my old man who was driving my Sup) So today I had my mate follow me for a good ten minutes at both steady speeds and with me giving it some - yet not a sign of blue smoke. Then just to make sure we let it tick over for a minute or so then blipped the throttle - blue smoke!!! :( I've done a search and there's conflicting info. Basically is this just stem seals or turbo seals too? Quote Link to comment Share on other sites More sharing options...
Fifty Posted June 29, 2006 Share Posted June 29, 2006 turbo seals methinks might be wrong as Im a dimwit:p pretty sure stem seals is onlty at start as oil that seaped past when engine off is burnt. hope its not too bad can be other things also so read up Rich:d Quote Link to comment Share on other sites More sharing options...
skaeley Posted June 29, 2006 Share Posted June 29, 2006 Oil stem seals mate, I have the same problem....I bought my current car knowing they needed to be done and my previous GZ Aerotop showed the problem up when I went full decat. Once the car is warmed up and say I am sitting in traffic, small blip on the accelerator and there is a puff off smoke. Hard acceleration and all is clear, its only on startup first thing, sometimes small puff of smoke, sometimes a cloud and the rest of the time on stop/start in traffic. You will find the reason in the forum threads, just got to decide if it is something you wan't to get fixed or not ! I have to admit it is tempting for me, I do a short journey to work, I hate leaving smoke ! However got to balance that up against approx £700 to fix it...... Quote Link to comment Share on other sites More sharing options...
Clarkey Posted June 29, 2006 Share Posted June 29, 2006 Oil stem seals mate, I think it's more of a 50% - 50%. Get it checked. Quote Link to comment Share on other sites More sharing options...
ardasaliah Posted June 29, 2006 Share Posted June 29, 2006 don't shoot me!--- Who cares dude -£700 to get rid of a puff of smoke. Just leave it! Quote Link to comment Share on other sites More sharing options...
Conrad Posted June 30, 2006 Author Share Posted June 30, 2006 Cheers Sanjay - I'm hoping it's just stem seals. My symptoms are similar to yours. Clarkey - How can I get it checked to know for sure which it is? I'm only down the road from CW but will he be able to tell without stripping the car down? Or is there any way I can definitely determine the diagnosis myself? Quote Link to comment Share on other sites More sharing options...
Clarkey Posted June 30, 2006 Share Posted June 30, 2006 You could start checking your IC pipework for excess oil ... or checking your IC for any oil in there. But - might be quicker and easier to take the car to someone competent that you trust .. and get them to diagnose the fault. As, if you're just relying on smoke to diagnose the fault ... Quote Link to comment Share on other sites More sharing options...
Conrad Posted June 30, 2006 Author Share Posted June 30, 2006 Just to be clear, if there's excessive oil in the IC is this turbo seals? Or could valve stem seals cause this too? Quote Link to comment Share on other sites More sharing options...
chris aka fonz Posted June 30, 2006 Share Posted June 30, 2006 Just to be clear, if there's excessive oil in the IC is this turbo seals? Or could valve stem seals cause this too? Turbo seals me thinks , and 700 quid is cheap for valve stem seals im sure ! Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted July 1, 2006 Share Posted July 1, 2006 I have noticed that when hot my car also puffs smoke:( quite alot of it:( But i have checked the i/c intake to the throttle housing and no oil there:) So is it just stem seals as i'll do that myself? Bet it looks really bad from behind:rolleyes: Has anyone got the part no.s for everything i'll need to do the stem seals? Quote Link to comment Share on other sites More sharing options...
skaeley Posted July 1, 2006 Share Posted July 1, 2006 Martin at MKIVSTORE.com, he has kit on his webiste......not an easy job, I think there is thread describing how its done on the forum somewhere..... Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted July 1, 2006 Share Posted July 1, 2006 Martin at MKIVSTORE.com, he has kit on his webiste......not an easy job, I think there is thread describing how its done on the forum somewhere..... Thats its not easy but i work in a garage so the thought of doing it is easy. As i have to overhaul v8 engines at work, although it be a totally different engine to the supe the principle is the same:D Quote Link to comment Share on other sites More sharing options...
Clarkey Posted July 1, 2006 Share Posted July 1, 2006 Tony License did a fantastic A-Z how to .. on exactly this. The thread - features an A-Z guide of how to do it. And all the appropriate part #s. Quote Link to comment Share on other sites More sharing options...
Scooter Posted July 1, 2006 Share Posted July 1, 2006 I have noticed that when hot my car also puffs smoke:( quite alot of it:( But i have checked the i/c intake to the throttle housing and no oil there:) So is it just stem seals as i'll do that myself? can't the seals 'go' exhaust side only to give the blue smoke from the exhaust whilst leaving the iC/intake clean of oil? Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted July 1, 2006 Share Posted July 1, 2006 can't the seals 'go' exhaust side only to give the blue smoke from the exhaust whilst leaving the iC/intake clean of oil? Well can they??? Someone please help:( (don't want to buy new tubbies) HOW MUCH /vbb/images/smilies/bbcode_shock.gif Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted July 2, 2006 Share Posted July 2, 2006 I've been out putting the car back together and ran her up just to make sure. when hot now she bellows smoke and then after a little while of idle just a short blip will bellow loads more smoke. this AFAIK was not the case before SAFC-2? but this should have no effect on the smoke should it??? Quote Link to comment Share on other sites More sharing options...
Scooter Posted July 2, 2006 Share Posted July 2, 2006 this does sound more and more like turbo seals to me........ .......i think stem seals wouldn't cause as much smoke as you are describing see what you think after reading this thread Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted July 3, 2006 Share Posted July 3, 2006 I have had the battery off the car for a while, so this would reset the ecu, so this would make the ecu run the car rich would it not?? until its relearnt whats going on(a ten min drive on and off boost). As the car to my knowledge was not doing it that bad before. Or am I just wishfull thinking:( Quote Link to comment Share on other sites More sharing options...
Clarkey Posted July 3, 2006 Share Posted July 3, 2006 reset the ecu, so this would make the ecu run the car rich would it not?? If it was running rich - it'd be throwing out black-ish smoke. You're getting blue smoke ? ~edit~ didn't release you'd plumbing your SAFC-2. Have you set all the settings to 0 on the Lo-boost & Hi-boost maps ? Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted July 3, 2006 Share Posted July 3, 2006 If it was running rich - it'd be throwing out black-ish smoke. You're getting blue smoke ? ~edit~ didn't release you'd plumbing your SAFC-2. Have you set all the settings to 0 on the Lo-boost & Hi-boost maps ? thats what i wanted the inst. for I won't drive the car till i know its safe or the safc is doing nothing but monitoring. Quote Link to comment Share on other sites More sharing options...
Clarkey Posted July 3, 2006 Share Posted July 3, 2006 Sorry mate .. I'm so forgetful! Tomorrow without fail. Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted July 3, 2006 Share Posted July 3, 2006 Just got her nice and hot on tickover blipped the throttle and a bluey/grey puff came out,more grey than blue though and it smelt oily. looks like i need some tubbies:( Quote Link to comment Share on other sites More sharing options...
skaeley Posted August 6, 2006 Share Posted August 6, 2006 Have you managed to sort out the smoke problem ? I am still not sure if its turbo seals or valve stem seals on mine......sometimes on start up no smoke.... after 7 days no driving big plume of smoke, switched off started it again no smoke, once warmed up and in traffic, little blips on the accelerator and I get smoke, but none under acceleration (gentle or hard). Did find some light deposits of oil in the IC pipe but not in any large quantity. So I am confused as to where my problem is ! Quote Link to comment Share on other sites More sharing options...
Ulrik Posted August 6, 2006 Share Posted August 6, 2006 Have you managed to sort out the smoke problem ? I am still not sure if its turbo seals or valve stem seals on mine......sometimes on start up no smoke.... after 7 days no driving big plume of smoke, switched off started it again no smoke, once warmed up and in traffic, little blips on the accelerator and I get smoke, but none under acceleration (gentle or hard). Did find some light deposits of oil in the IC pipe but not in any large quantity. So I am confused as to where my problem is ! About same here, but with no oil at all in the ic pipes.... Just changed to greddy 3row fmic....and we took out the old smic... And was no oil in the pipes.. I used to get white smoke sometimes at idle after 2-3 min. But that is gone now, i only get blue smoke sometimes like you described... Quote Link to comment Share on other sites More sharing options...
TLicense 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. Quote Link to comment Share on other sites More sharing options...
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