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 Smoke - I think i might have stuffed my motor  

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andrew180sx
  • andrew180sx
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  • Member No.: 2,985
  • Joined: 13-June 03
  • Posts: 830
  • From: Vladavostok
Post #1 post 19th July 2003 - 05:48 PM
I gave my SR20 a big rev a few times last night and all of a sudden all this grey smoke started pouring out... then it disappeared but I pulled over anyway.
I checked for smoke in the light and got someone to poke to throttle at idle and a few little puffs of black smoke were coming out. When I revved hard however there was no smoke...
I am not sure what has happened...
has this happened to anyone else?
Any help is greatly appreciated!!!
Thanks
Andy

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Morgish
Post #2

im not sure, but i hpe its nothing bad.
Could be ya turbo though, u still got full boost ?

Post #3

diagnosis time dude...

black smoke ususally means fuel, grey smoke can be oil, but hard to determine at night, u can smell it though.

Try and narrow down when you get the smoke. (under what conditions eg, just acceleration/de-acceleration/idle etc,etc...)

Could be turbo/ airflow meter/ pcv/ injector/s/ computer/...

Any other tell tale signs?

Post #4

it is the turbo seals going.

DINGUSS
Post #5

we talking out of the engine bay or exhaust or what?

[200.G0]
Post #6

bloody andrew tongue.gif

PSI-747
Post #7

some good news in there , if u rev it hard and back off or if ur driving hard and back off hard and there is no smoke then that will indicate that it isnt a piston/ring problem , if it plumes out when u back off like this then a ringland or ring has broken.

smoke on idle can be a seal in ur turbo burnt , therefore itll push some oil out the zorst or thru the combustion cahamber and then get burnt and smoke out the zorst.

blown head gaskets will give a whiteish steamy smoke. thats no good.

as said above check a few simple things like afm , leaky injectors etc b4 spending heaps of $$$$

Post #8

Do a compression test - chek for balance between cylinders. If this checks out ok then the cost not likely as bad.

mAJORD
Post #9

leaning to wards turbo seal myself, give it another thrashing and see if it happens again, the way uve written it it looks like uv only revved it with no load to check for the smoke? hence the turbo wouldnt even be producing boost , give it anotther rev under load , full boost.

andrew180sx
Post #10

the smoke has pretty much gone since that night...
I am hoping and praying that it was the turbs
it still boosts fine however.
aaah well I plan to rebuild it in the near future anyways with aries forgies and new timing chain and metal head gasket. I will have the hear reconditioned whilst im at it. first i need a FMIC and BB turbo

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