viper Posted July 18, 2012 Share Posted July 18, 2012 Hi all, since going bpu and after a dyno run, from time to time my exhaust smokes. I cant get my head round what it might be as it only happerns when i come to a stand still, never under load. But its not a constant thing, its after just general driving at a constant speed for a while then coming to a stop say at lights or a roundabout the exhuast lets out a load of white smoke which is quite smelly. I woundered weather im burning oil but iv been keeping an eye on the level and it seems fine. Any advice would be greatly appreciate. Link to comment Share on other sites More sharing options...
Abz Posted July 18, 2012 Share Posted July 18, 2012 It's the value stems which are shot. Tends to happen when you go BPU as the cats are not there to mask it as much. Link to comment Share on other sites More sharing options...
hazza Posted July 18, 2012 Share Posted July 18, 2012 Smelly? Like eggy? May be a catalytic converter? That's if you have got one fitted that is Or maybe over fuelling?... Link to comment Share on other sites More sharing options...
safcdixon Posted July 18, 2012 Share Posted July 18, 2012 could be stem seals possibly, i had this type of problem on my old rst it never seemed to smoke on boost but when a traffic lights it was like a smoke machine Link to comment Share on other sites More sharing options...
Scooter Posted July 18, 2012 Share Posted July 18, 2012 viper said: Hi all, since going bpu and after a dyno run, from time to time my exhaust smokes. going bpu can expose worn turbo seals. Link to comment Share on other sites More sharing options...
Swampy442 Posted July 18, 2012 Share Posted July 18, 2012 Turbo oil seals, hot side. Link to comment Share on other sites More sharing options...
jcbt Posted July 18, 2012 Share Posted July 18, 2012 Does it smoke on first start up - if it does probably stem seals If it smokes after car has run awhile then its probably turbo seals Link to comment Share on other sites More sharing options...
skippyboyo1 Posted July 18, 2012 Share Posted July 18, 2012 Turbo seals, I must day I don't miss those days, not a massive job though Link to comment Share on other sites More sharing options...
Dnk Posted July 18, 2012 Share Posted July 18, 2012 White smoke isn't valve stem seals If it's valve stem seals it should smoke a little on first start up from cold and be burnt oil smoke and not white Link to comment Share on other sites More sharing options...
viper Posted July 19, 2012 Author Share Posted July 19, 2012 mmmmmm, i have noticed the smoke on first start up once or twice, but its never when on boost or on load. I am causing any damage driving it as it is? is there any way to completly determine if its stem seals or turbo seals? any tell tail signs. thanks all for your help Link to comment Share on other sites More sharing options...
Nic Posted July 19, 2012 Share Posted July 19, 2012 viper said: mmmmmm, i have noticed the smoke on first start up once or twice, but its never when on boost or on load. I am causing any damage driving it as it is? is there any way to completly determine if its stem seals or turbo seals? any tell tail signs. Turbo oil seals - get some one to follow you, accelerate hard then back off, you will see blue smoke when you come off the throttle. Valve stem seals - blue smoke at first start up after being stood a while. Link to comment Share on other sites More sharing options...
viper Posted July 19, 2012 Author Share Posted July 19, 2012 ok thanks nic, Is there potential fatal damge in the short term if its turbo seals? new set of turbos needed? or a full turbo rebuild? whats involved? Link to comment Share on other sites More sharing options...
skippyboyo1 Posted July 19, 2012 Share Posted July 19, 2012 viper said: ok thanks nic, Is there potential fatal damge in the short term if its turbo seals? new set of turbos needed? or a full turbo rebuild? whats involved? Nothing fatal man, just new seals need fitting which is a turbos off job Link to comment Share on other sites More sharing options...
Swampy442 Posted July 19, 2012 Share Posted July 19, 2012 The classic tell tale for turbo seals is get the engine hot then leave it idle, if it starts smoking then thats a good pointer to the turbos. Link to comment Share on other sites More sharing options...
viper Posted July 19, 2012 Author Share Posted July 19, 2012 mmmm, ok, is it worth upgrading o Uk spec turbos or just get the seals done? any idea cost of getting the seals replaced? Link to comment Share on other sites More sharing options...
Guigsy Posted July 19, 2012 Share Posted July 19, 2012 I don't think uk turbos fit on a jspec do they? If they do you would need the injectors and ecu to go with them to fuel them properly I'd imagine. But not sure Then the ecu will throw a tonne of errors as it will be looking for cruise control and all the other bits that differ. the exhaust flange is different aswell... Link to comment Share on other sites More sharing options...
viper Posted July 19, 2012 Author Share Posted July 19, 2012 ah thanks for that bit of info. So who can tell me or at least give me an idea of cost to get he seals changed on my turbos? or is it wirth just getting them fully refurbished? prices please Link to comment Share on other sites More sharing options...
dan294 Posted July 19, 2012 Share Posted July 19, 2012 Try cr turbos mate. Around the £650-700 mark I think Link to comment Share on other sites More sharing options...
Swampy442 Posted July 19, 2012 Share Posted July 19, 2012 If you use UK turbos you'll need a different manifold as well. Link to comment Share on other sites More sharing options...
Nic Posted July 19, 2012 Share Posted July 19, 2012 viper said: is it worth upgrading o Uk spec turbos or just get the seals done? Smaller, laggier UK turbos would be a downgrade Link to comment Share on other sites More sharing options...
Dnk Posted July 19, 2012 Share Posted July 19, 2012 Nic said: Smaller, laggier UK turbos would be a downgrade Not when they do 135k + miles and are still going strong Downgrade ? lol Link to comment Share on other sites More sharing options...
Nic Posted July 19, 2012 Share Posted July 19, 2012 Dnk said: Not when they do 135k + miles and are still going strong Downgrade ? lol Got a bite Link to comment Share on other sites More sharing options...
Dnk Posted July 19, 2012 Share Posted July 19, 2012 Nic said: Got a bite To the op, how many miles has your car done ? Link to comment Share on other sites More sharing options...
andyi Posted July 19, 2012 Share Posted July 19, 2012 you could just put 1 cat back in that will stop it till u get new turbo seals . Link to comment Share on other sites More sharing options...
viper Posted July 20, 2012 Author Share Posted July 20, 2012 im guessing theve been on there way out for a while as i only noticed it since taking the sats out. Only got the engine a month ago, so not very happy about that. think i might make a call to who i bought it off Link to comment Share on other sites More sharing options...
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