White Smoke On Idle

[nthside_skyline]

Hey Everyone

I have an issue that no one seems to be able to help me out with, my R33 S1 GTST started blowing white smoke with the smell of burnt oil on idle every now and then, never under boost. I then bought a second hand stocko turbo supposedly done 150K and now it is worse than before, still no smoke while driving or under boost, but if idle at any revs under 1000 after about 20 seconds it will start blowing thick white smoke. If i then start to rev it the smoke pissses out sends a white plume behind me, but then clears after 10seconds after reving it above 1000.

Now up here in Brisbane no one seems to know what is causing this, all I get told is "...Jeez never heard of that one, bring it in and we will pull it all apart and see what we can find."

I am wondering if anyone else has had this problem and if so what was it?

Is it the turbo and is it because its a second hand one I put in? been told its strange how 2 turbos have done the same thing so it must not be that.

I personally have no clue, I just want to try to avoid paying $1000 just to get it diagnosed.

If anyone can shed some light on this I would greatly appreciate it.

Cheers Guys

[Sunkist]

but you did have a stock turbo before, and bought another second hhand one.. i probably wouldnt rule it out. especially a 2nd hand turbo...

[nthside_skyline]

Oh ok...cool, thanks man i hope thats it

[mico]

only when its cold ?? built motor ?? what oil ?

[nthside_skyline]

Gday Mico

No it blows when its cold or hot, it can do it when i start it in the morning or after 3 hrs of driving, not really built motor, mostly stock sorry mate wasnt sure what you meant by built motor, not sure on what oil is in it as i havent done a service on it yet, was waiting to fix this issue before I did an oil change.

Cheers

[JKR-32]

Inlet manifold gasket? I think there is a water gallery above cylinder 2 in the inlet manifold. I'm taking a stab here, but sounds very similar to a problem my mate had 12 months ago. Has it got a miss fire at all?

[DVS JEZ]

Run an engine oil flush then new oil and filter. Sr20's do it to. It might be the valve stem seals gumming up. They normally leak under vacuum(idle etc) and clear up on boost.

[mico]

if u are in bris then put some 20w50 or there abouts in it. its starting to get hot now, thicker oil should sort it out.

[nthside_skyline]

Cheers Guys

Jez I will try the flush and oil change with the 20w50 that Mico suggested, if that fails then I will look at the inlet manifold gasket that you have suggested Jock, also to answer your question Jock no miss fire at all besides doing it once after i had not started it for a few weeks, but then the miss fire cleared after a few revs.

I will try all of this then see how I go, will let you all know.

[JKR-32]

Probably isn't the inlet manifold gasket then, Todd's car was misfiring as well because cylinder 2 was copping some water. which means your water level would be going down a little if this was the case as well, now that I think about it....

[nthside_skyline]

Cool, no worries, that eliminates that one then

Edited September 18, 2011 by nthside_skyline