Ant1
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Re:Grey smoke
2012/12/04 22:25:00
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Could it be that the pcv is causing the whole problem? But with the amount of oil below the turbo you would think that it must be leaking the exhaust side.
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3sgeTurbo
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Re:Grey smoke
2012/12/05 12:25:17
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If it were leaking on the hot side then you will see a lot of oil around the dump pipe gasket,
An easy test for the PCV is to vent the pcv / rocker cover line to the atmosphere instead of back into the intake, if there is not a lot of pressure coming out of the PCV then chances are it is blocked as the 3S has a fair amount of blow by, you should be able to feel a fair amount of pressure coming out of the rocker cover breather.
I personally don't think it would be the PCV, if it was blocked the engine would smoke more on higher revs from the increased pressure.
1991 MR2 Black Turbo Targa Gen 4 3SGTE w/ GTX3076r 1984 AE86 Toyota Sprinter 4AGE 16V ITB's 2002 BMW Silver X5 4.4i V8 Daily Driver
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Mrskylighter
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Re:Grey smoke
2012/12/05 12:45:08
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Maybe try removing the oxygen sensor and shine a light in the hole to look for burnt oil. When my turbo died it was all white inside the downpipe and back of the turbo.
post edited by Mrskylighter - 2012/12/05 12:57:54
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Ant1
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Re:Grey smoke
2012/12/05 20:26:43
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Had a better look, the leak is definitely on the dump pipe side. Looks like its time to rebuild it.. Is there any thread that goes thru how to do it or anything or has anyone got any tips? Or is it self explainitory once the turbo is off? This is my first turbo car haha.
Also took the hose off and the pressure wasn't that high, about as much pressure as you blow out of you mouth.
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Road and Track
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Re:Grey smoke
2012/12/06 07:13:56
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i've had this problem on lots of 3SGTE's and its almost always the turbo seal.
it is a tiny piston ring and they often get gummed up with carbon. in about 50% of cases these days, the housing where it runs is worn out and has to be bored out and an oversized ring fitted. any competent turbo shop will do this, or we have reco ones on the shelf.
Road & Track For more information and contact details for Road & Track, clickHERE
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Ant1
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Re:Grey smoke
2012/12/06 12:34:22
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Yeah that makes sense. Thanks.
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Ant1
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Re:Grey smoke
2012/12/11 00:07:14
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What's a rough pricing for that to get done? Going to get a price tomorrow hopefully, just want to know if they are ripping me off as I have no idea.
Or would I be better off getting a second hand CT20 over rebuilding my CT26 with T04E wheel?
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MRTurbo
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Re:Grey smoke
2012/12/11 09:28:04
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a rebuild/hiflow/new wheel will most likely cost you more than a second hand 'CT20b', not to mention laggier.
1990 SW20 GT 3S-GTE Targa 2001 Honda CBR600F4i 
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Ant1
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Re:Grey smoke
2012/12/11 13:31:36
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Hmmm might just get a quote and if its too much get a CT20
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3sgeTurbo
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Re:Grey smoke
2012/12/11 13:41:15
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How much play is in the turbo? if its very minimal I might be able to help you with a cheap rebuild,
Also if you wanting to upgrade I will be selling my high flowed ct26 in a few weeks.
1991 MR2 Black Turbo Targa Gen 4 3SGTE w/ GTX3076r 1984 AE86 Toyota Sprinter 4AGE 16V ITB's 2002 BMW Silver X5 4.4i V8 Daily Driver
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Ant1
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Re:Grey smoke
2012/12/11 14:00:44
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I have no idea how much play it has, never had a look.
Mine is hi-flowed, has yours been rebuilt recently? I got a quote, $450 to $650.
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3sgeTurbo
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Re:Grey smoke
2012/12/11 14:19:52
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Mine has had a full rebuild including machining for larger seals, new shaft / turbine wheel and is hight flowed with a 57 trim garrett wheel,I did the rebuild and all the machine work and balancing was done by rotomaster distribution,
I am only going to sell it as im upgrading to a Garrett GTX3071r,
1991 MR2 Black Turbo Targa Gen 4 3SGTE w/ GTX3076r 1984 AE86 Toyota Sprinter 4AGE 16V ITB's 2002 BMW Silver X5 4.4i V8 Daily Driver
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Ant1
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Re:Grey smoke
2012/12/11 15:54:27
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How much would you want for it? Only problem though is that I want it fixed ASAP.
What would be some options for aftermarket ones which dont cost heaps which bolt straight on?
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MRTurbo
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Re:Grey smoke
2012/12/11 15:58:44
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"aftermarket" and "bolt straight on" doesnt happen mate
maybe hit up dylmrt for a factory 3sgte turbo
1990 SW20 GT 3S-GTE Targa 2001 Honda CBR600F4i
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Ant1
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Re:Grey smoke
2012/12/11 16:00:55
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Or at least bolt on without too much trouble haha?
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