Smoke In The Morning

[GH05T]

Ok so my 32 has a little issue,

This happens In the morning or the evening after the car has sat for a decent amount of time, I don't run the car hard as it is a daily, 45 min drive to work.

Anyway, I get smoke out of the exhaust, it seems to be an oil smoke.

It comes out when I accellarate, but only once....I.e

Accellarate to 3000 rpm, will smoke ...do it again to 3 k...no smoke

Rev further to higher rpm and more smoke after 3krpm, make sense?

It seems to clear it out, like clearing your throat.

I always warm the car up never drive cold.

My thoughts were theirs oil draining/ seeping somewhere it shouldn't and being sucked back into the engine when I go again later on.

One it's cleared theirs no more smoke

What should I be checking here?

I do know from a service report that my turbo oil drain line had a slight weep, any link here do you think?

Edited August 4, 2012 by GH05T

[Cowboy1600]

Possibly valve stem seals. Car sits and a small amount of oil weeps past the seal. Start car, give it a squirt and the oil burns off.

Give it a comp test and if it comes up chipper, then it's likely the valve stem seals as they won't generally, affect your compression. If comp is down then you have a bigger problem.

[GH05T]

Comp is fine on dry test and wet test, not ideal but for its age it's not bad

[Cowboy1600]

Then I'd say almost defo valve stem seals.

If it is valve stem seals I wouldn't be too concerned. Just make sure you keep an eye on your oil level and if it gets worse, like blowing smoke under power and or a lot of of smoke on start up, then it's time to look at getting your head refreshed.

[scotty nm35]

That puff of smoke on cold takeoff is usually condensate oil from the PCV running down into the manifold overnight. You can try fitting a small sealed catch can full of stainless steel wool in the pcv hose to prove it.

[GH05T]

That's what it seems like, from a stand still any acceleration gives a noticeable amount of blue smoke (visage at night in headlights behind) and like I said its like it puffs as far as it revs, but only once, accel to 2000rp with smoke but only once, more smoke when you go past that rpm again,

Is this problem going to get worse if the car gets driven hard? I drive daily and maby one in a while it gets a caining, should I be carefull, is their anything I can spenda bit of coin n to help further expenses ?

[GH05T]

Once it's warm and been reved up atleasti once warm, I can boost 1bar all the way to 6000 7000

Rpm with minimal smoke (a little bit lets be honest an acceptable amount for a hard boost)

[zebra]

Don't discount a weepy turbo oil seal

I spent months diagnosing my car, which had all the signs oil valve stem seals, turned out to be a turbo

[DVS JEZ]

Could try an oil flush. Has worked for me on one of my old cars previously. But as said possibly oil seal on turbo or valve stem seals.

Extremely hard to diagnose.

Also check ur oil isnt overfilled

[blind_elk]

I always warm the car up never drive cold.

Drive it cold (but sensibly!). Most of the damage is done when the engine is cold. It will warm up much quicker than simply letting it idle.

And you won't be coming back later asking why your fuel economy is so crap.

[GH05T]

dont care at all about fuel i dont pay for it, i run my car for 15 mins in the morning before driving, i run it for about 3-5 in the evening after work, nether affect the smoke though, its always the same

[Cowboy1600]

Blind_elk is right. Warming up vehicles, especially ones that rev, is a very bad idea. Generally at idle the oil pump isn't pushing a great deal of oil around and there's not much temp increase which means it takes longer to get oil everywhere and also up to temp.

Start car, let idle for 30 seconds then get driving.

Idling a cold car for 15 minutes is a great way to destroy rings and valve stem seals.

[GH05T]

Oh wtf really

[battery]

One of my old RB20's developed this problem, ran fine in that condition for 40000kms before the HG popped

I always though it was worn Valve stem seals..

[Rolls]

Yeah idling for 15 minutes is not a good idea at all, would barely warm it up, would get up to temp in 1-2 minutes of normal driving otherwise. Start it, wait 30 seconds then drive off staying off boost until temp is up.

Smoke could be turbo seal or valve stem seals.

Edited August 5, 2012 by Rolls

[GH05T]

So what's the process for rectifying either of those issues

[Cowboy1600]

Valve stem seals means head off. In reality leaky valve stem seals won't do any damage (at least in your case as it seems not too bad.. They'll just progressively get worse until such time as it smokes a lot more or all the time and then it needs to be fixed.

I'm not sure how hard it is to get the head off an RB as I've not done one, but once off, barring any weird RB specific oddity, the seals might be maybe $100 or so and the work to actually fit them might be 4 hours (that's a pretty rough guesstimate). Of course, if it were me, with the head off and the valve train off it would be hard to resist giving the head a through going over.

As for turbo seals, that's a tougher one. That means turbo off and either a "back to stock" rebuild for $500+ or replace with something tastier for $1000+ plus required supporting mods.

TBH it sounds to me more like valve stem seals rather than turbo. I think if it was the turbo it would produce more smoke under load.

[battery]

Valve stem seals means head off.

No it doesn't....

You can do it with head on but you need to pressurize the cylinder so the valve don't drop... Kent of a job!

Edited August 5, 2012 by battery

[GH05T]

Turbo is a fairly New trust td05 I will fix the oil.return line which I have been told is weeping then go chasing

[GTSBoy]

I solved the smoke in the morning problem (not that it really is a problem) by swapping in a Neo. Much better now.

Oh, and can we get this thread deleted? Every time I see it I hear Deep Purple for some reason.

Edited August 6, 2012 by GTSBoy