SUPRALOOPY Posted June 28, 2005 Share Posted June 28, 2005 thought my stem seals were on there way out,but i have now found that if i use the car carefully and not hoof it around then leave it for a few days i don't get the puff of smoke on start up..i will keep testing this theory but could it be my turbos and how long have i got left before Link to comment Share on other sites More sharing options...
Clarkey Posted June 28, 2005 Share Posted June 28, 2005 Blue smoke ? My seals are dying and the techies here advised me to .. Remove the IC pipe from the engine (marked ETTC) .. the only thing flowing through that pipe should be compressed air. A little bit of oil is acceptable ... if it's swmming in it oil then it's very likely to be turbo seals. Either Hybrids or Budget Single I'm afraid. Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted June 28, 2005 Author Share Posted June 28, 2005 Blue smoke ? My seals are dying and the techies here advised me to .. Remove the IC pipe from the engine (marked ETTC) .. the only thing flowing through that pipe should be compressed air. A little bit of oil is acceptable ... if it's swmming in it oil then it's very likely to be turbo seals. Either Hybrids or Budget Single I'm afraid. ok i will check that out and then if needed start saving for either.. not too bad at the mo just a bit at at start up for about 2 secs Link to comment Share on other sites More sharing options...
paul mac Posted June 28, 2005 Share Posted June 28, 2005 its not all bad mate mine was puffin smoke in the morning and you could pour the oil out of the intercooler for nearly 2 years, it still made 1.2 bar, pulled like a train and spanked the arse of anything that thought they were quick enough to have a go Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted June 29, 2005 Author Share Posted June 29, 2005 its not all bad mate mine was puffin smoke in the morning and you could pour the oil out of the intercooler for nearly 2 years, it still made 1.2 bar, pulled like a train and spanked the arse of anything that thought they were quick enough to have a go Link to comment Share on other sites More sharing options...
Terminator Posted June 29, 2005 Share Posted June 29, 2005 A decat will often show, what Chris Wilson calls "tired " turbo seals, as they are subject to less back pressure than they were designed for. How long before tired gets to totally knackered is as long as a piece of string. Some can go on for 10'sK miles with no apparent loss of performance. Link to comment Share on other sites More sharing options...
Aerotop Dave Posted June 29, 2005 Share Posted June 29, 2005 I'm just totally confused by mine. It's used daily but I only have a short journey to work and the car is at 88,000 miles: Pre-decat I had the classic 'little puff at startup' and wasn't bothered about it. Driving back from the decat I had enormous amounts of smoke on startup (I stopped twice on the way back from CWs). I mean, a real cloud of the stuff out the back that you had difficulty seeing through! CW thought it might have just been a bit of oil in the decat pipe seals or something (a little oil = a lot of smoke as we all know). Next day (and since then) I've never had this again. Post-decat I get a much more noticeable puff at startup sometimes. This week is typical - had it on Monday morning, had it on Tuesday morning, this morning... nothing. If I leave it over the weekend I usually get a much bigger puff. Sometimes I get no more than the daily puff. Recently I left it for a week and got... nothing at all. Hoofing it or pootling it seems to make no difference - if anything I get less smoke after hoofing. After a long drive I get nothing for a couple of days. Recently I've started to get a more noticeable oil-burning smell, so I'm going to start monitoring the oil level more. But again it's not always there - I got a good whiff over the weekend at one point, but this morning I had it running on the drive for 2-3 mins and couldn't smell a thing (and the wind was calm). So the post-decat increase in smoke suggest possible turbo seals, but all the other signs suggest stem seals. But the complete unpredicability/inconsistency of the symptoms just makes it totally confusing. Link to comment Share on other sites More sharing options...
JohnA Posted June 29, 2005 Share Posted June 29, 2005 I've got the same symptoms, lol... Before the full decat it was nice and clean The moment the first cat was removed, holly smokescreen Batman. Then nothing. On some cold starts it gave stink and smoke. On others, nothing AT ALL. Very incosistent indeed. Makes you wonder if it is related to the position of the valves as the engine stops, because I always park on the same spot, in the same way. Link to comment Share on other sites More sharing options...
Clarkey Posted June 29, 2005 Share Posted June 29, 2005 I've got the same symptoms, lol... Before the full decat it was nice and clean The moment the first cat was removed, holly smokescreen Batman. Then nothing. On some cold starts it gave stink and smoke. On others, nothing AT ALL. Very incosistent indeed. Makes you wonder if it is related to the position of the valves as the engine stops, because I always park on the same spot, in the same way. My symptoms are pretty much the same as yours John .. except After the Decat there was nooo smoke. It only started happening after 12 months of running 1.1 - 1.2 bar boost pressure. On warm startup it also sometimes smokes. What is consistent is the oil in the IC piping. Link to comment Share on other sites More sharing options...
JohnA Posted June 29, 2005 Share Posted June 29, 2005 When I (am forced to) get the head off I'll dismantle it ofcourse and measure all valve stems with the micrometer, check the fitting with their seals too. If some are loose and others tight, then it might explain the incosistent pattern of smoking on cold starts (as the engine stops, sometimes oil can flow through, sometimes it can't) Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted June 29, 2005 Author Share Posted June 29, 2005 and deal with it then cos its gonna cost ya..although i'll probably dismantle it myself Link to comment Share on other sites More sharing options...
paul mac Posted June 30, 2005 Share Posted June 30, 2005 On some cold starts it gave stink and smoke. On others, nothing AT ALL. Very incosistent indeed. . exactly the same as mine, just done the valve stem seals which were absolutely shot the exhaust side ones just fell off and now all is well, i did not put the original tubbys back on however so dont know how much they were contributing to the smoke screen Link to comment Share on other sites More sharing options...
hadyn Posted June 30, 2005 Share Posted June 30, 2005 Will fitting a catch tank help? Link to comment Share on other sites More sharing options...
paul mac Posted June 30, 2005 Share Posted June 30, 2005 you could try one mate it did'nt do jack on mine apart from bling Link to comment Share on other sites More sharing options...
JohnA Posted July 1, 2005 Share Posted July 1, 2005 Will fitting a catch tank help? not with stem seal smoke. Catch tanks only help when there's a lot of oil coming through the crankcase (usually sign of excessive piston ring blowby) Link to comment Share on other sites More sharing options...
Aerotop Dave Posted July 1, 2005 Share Posted July 1, 2005 Usual unpredictability on mine this week - nothing yesterday, nothing last night, good puff this morning... Link to comment Share on other sites More sharing options...
JohnA Posted July 1, 2005 Share Posted July 1, 2005 Could it be that the seals of some cylinders die first? The ones with higher EGTs perhaps? That might explain the random patterns of cold-start smoking. Those who've changed their old seals might remember if some seals were easier to take off than others (or some were visually worse than others) Link to comment Share on other sites More sharing options...
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