GlennK Posted March 14, 2008 Share Posted March 14, 2008 Recently bought a TT. Had it decatted and boost set at a sesnible 1 bar (from a bit more:innocent:) as the oriiginal FMIC turbo hose had been blown off. Now hoses are connected properly I'm getting puffs of smoke on decelleration. Can it be the stock IC has some oil contamination... I took it out yesterday to try to blow the oil out but couldn't get a run long enough to go above 1st turbo at 0.6 bar. Got a alot of smoke blowing out after foot taken off accelerator. What about fitting a 'new' FMIC and pipes? Is this an easy job? And which makes are worth getting from a value perspective? (I've seen some aluminium no name ones from £190 going up to the HKS £500!!) Cheers, Link to comment Share on other sites More sharing options...
miko_supra Posted March 14, 2008 Share Posted March 14, 2008 Typical causes of smoke are turbo seals and valve stem seals Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 14, 2008 Share Posted March 14, 2008 Sounds like turbo seals, especially if they are UK turbos. Link to comment Share on other sites More sharing options...
GlennK Posted March 14, 2008 Author Share Posted March 14, 2008 Thanks for your help. A bit nore info about the car: 100Kms Jap Spec 94 RZ. Testr drove a couple of weeks ago. No smoke. Bought it. Last week took it out for a gentle run and teh 2d turbo cut in. Very nice! Loud bang but all else ok. Took it home. Didn't see or hear anything wrong in the engine bay. Left it in garage. Then took it gently to TotoytaGT who found one rubber hose popped off the IC, and that the mecanical knob boost controller was set at 1.5bar!! So all put back and decatted. Now smoking Link to comment Share on other sites More sharing options...
ADL Mark Posted March 14, 2008 Share Posted March 14, 2008 Sounds like turbo oil seals I'm afraid Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 14, 2008 Share Posted March 14, 2008 If it didn't smoke before de catting, but does now, it's definitely the turbo seals, the lack of back pressure shows up tired seals, you are looking at a pair of new turbos if it's a J-Spec and you want the superb spool of the stock ceramics, or recons and slower spool. Nic in Hong Kong can offer good discounts on new stock ceramic turbos, I wouldn't degrade it with steel ones if you plan on keeping it, they just aren't in the same league. Link to comment Share on other sites More sharing options...
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