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Location:
Hornsby, N.S.W
Registered:
September 2002
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20v turbo smoke problems. Further suggestions please!
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Tue, 07 September 2004 09:31
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heya guys, i have a 20v 4age silvertop with a t25 turbo on it, the car has been producing a fair bit of smoke of late, no the black fuel smoke type, but more oil or condensation sort of smoke, its sorta white in colour and sometimes has a bit of blue to it, i have checked the engine compression thinking that the rings may have let me down but the compression was 160+ psi across all four cylinders, i have also removed the turbo and it contains no shaft play and there is no oil in the intercooler pipes and there is no signs of oil leaking out the rear of the turbo into the exhaust system. any advice of experiance would be appreciated, as i am willing to rebuild the turbo, but if the problem lays else where why worry!!!
thanks heaps
Justin
[Updated on: Tue, 07 September 2004 10:49]
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Location:
Baulko Hillo
Registered:
April 2004
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Re: 20v turbo smoke problems
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Tue, 07 September 2004 10:13
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Water leak??? It would make sense if you are running a turbo. How much boost are we talking?
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Location:
Hornsby, N.S.W
Registered:
September 2002
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Re: 20v turbo smoke problems
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Tue, 07 September 2004 10:18
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7 psi, just the standard boost for the turbo!! are we talking water in the turbo or water as in head gasket, cause neither is really a problem i want to put a metal headgasket in and im keen to rebuild the turbo just for peace of mind
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I supported Toymods
Location:
Perth, WA
Registered:
May 2003
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Re: 20v turbo smoke problems
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Tue, 07 September 2004 10:22
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when is the smoke produced?
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Location:
Baulko Hillo
Registered:
April 2004
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Re: 20v turbo smoke problems
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Tue, 07 September 2004 10:25
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Water leak as in HG.
How much smoke is there?
What computer are you running?
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Location:
Hornsby, N.S.W
Registered:
September 2002
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Re: 20v turbo smoke problems
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Tue, 07 September 2004 10:29
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ae95: mainly just when idling!!
slut: a considerable amount, enough to be getting looked at very very akquardly by the passing public!!  micro tech LTX8.
there is a bit of the smoke when driving but mainly when the car is at traffic lights or just idling with the turbo timer on after driving!
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Location:
Hornsby, N.S.W
Registered:
September 2002
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Re: 20v turbo smoke problems
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Tue, 07 September 2004 10:30
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ae86slut: wouldn't a water leak show up in my compression test results, thus one or two cylinders much lower on compression than the others???
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Location:
Baulko Hillo
Registered:
April 2004
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Re: 20v turbo smoke problems
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Tue, 07 September 2004 10:36
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| juzzo84 wrote on Tue, 07 September 2004 20:30 |
ae86slut: wouldn't a water leak show up in my compression test results, thus one or two cylinders much lower on compression than the others???
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You would think so, hence my other questions, unless it was a very small leak which would make sense that it happens mainly when idling as it would be getting burnt off quicker at higher revs.
Someone correct me if I'm wrong here.
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Location:
Hornsby, N.S.W
Registered:
September 2002
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Re: 20v turbo smoke problems
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Tue, 07 September 2004 10:41
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ae86slut: i appreciate the addvice thanks, maybe i should get the motor TK tested for a headgasket leak, the only problem is that if the leak is very small, it may not show up on a TK test!!
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Location:
Baulko Hillo
Registered:
April 2004
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Re: 20v turbo smoke problems
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Tue, 07 September 2004 10:45
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No worries.... But don't take my word for it dude. I'm just throwing up suggestions.
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Location:
Hornsby, N.S.W
Registered:
September 2002
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Re: 20v turbo smoke problems
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Tue, 07 September 2004 10:46
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ae86slut: yeah man, i understand that and thanks again, but i will still continue my investergation, but im just opening up for some people to kick some ideas my way!!!
justin
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Location:
Syndey
Registered:
December 2002
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Re: 20v turbo smoke problems. Further suggestions please!
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Tue, 07 September 2004 10:57
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i take it this car is Daves old car??
if so i tuned it a while back, it is the turbo causing your smoke nothing else, change the turbo and the smoke will go away it is the oil seal in the back of the turbo causing your issues,
Dale
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Location:
Hornsby, N.S.W
Registered:
September 2002
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Re: 20v turbo smoke problems. Further suggestions please!
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Tue, 07 September 2004 10:59
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ah ledgend!!! thanks man!!
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Location:
Syndey
Registered:
December 2002
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Re: 20v turbo smoke problems. Further suggestions please!
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Tue, 07 September 2004 11:02
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i reccomend a t28 off a s15, that will give a real kick in the butt!!
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Location:
Hornsby, N.S.W
Registered:
September 2002
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Re: 20v turbo smoke problems. Further suggestions please!
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Tue, 07 September 2004 11:03
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its all money i dont have, i think i will just rebuild this lil puppy!!
justin 
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Location:
Syndey
Registered:
December 2002
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Re: 20v turbo smoke problems. Further suggestions please!
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Tue, 07 September 2004 11:07
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no point rebuilding it, it will cost you more than another turbo, the one on there is a t25 off a s13 sr20, you should be able to pickup another one for a couple of hundred
Dale
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Location:
Hornsby, N.S.W
Registered:
September 2002
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Re: 20v turbo smoke problems. Further suggestions please!
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Tue, 07 September 2004 11:13
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thanks, i will consider that!!
justin
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I supported Toymods
Location:
Perth, WA
Registered:
May 2003
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Registered:
May 2002
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Re: 20v turbo smoke problems. Further suggestions please!
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Tue, 07 September 2004 11:52
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hey juzzo how does the 20valve go with the turbo? I'm in the middle of building mine now.
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Location:
Hornsby, N.S.W
Registered:
September 2002
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Re: 20v turbo smoke problems. Further suggestions please!
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Tue, 07 September 2004 13:31
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ae95: could you please pm me with the price for the turbo you have, im assuming it is a t28?
20vcorona: they love it, so drivable yet still have the punch to get you moving, mine is making only 120kw's at the rear now (on 7psi), im just about to either rebuild the turbo (t25), or put on a t-28 ( @ 10psi), bigger cooler and larger injectors and im looking around the 150-160kw's with a good tune and possibly a new metal head gasket if the pocket isnt to empty!
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I supported Toymods
Location:
Perth, WA
Registered:
May 2003
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Re: 20v turbo smoke problems. Further suggestions please!
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Tue, 07 September 2004 14:43
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not worth it to rebuild the turbo
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