Blue smoke

[Wilford Brimley]

Ok so the ol vo smokes on idle, under heavy initial load(boost) and random puffs whilst driving, the turbo is new so that seems unlikely, I have no real pcv to speak of so I'm wondering if that could cause the smoke? I'm gonna change to a little thicker oil because I think the one i currently have is too thin.. really wanna nail this down, the car runs great and pulls like mad but the smoke is straight up embarrassing

 

[spock345]

What car?

 

[Wilford Brimley]

940 turbo

 

[dl242gt]

It's a feature not a problem. Since you don't have a pcv. That is a good place to start. Having a vacuum pcv helps not only to remove the crankcase vapors and pressure. But the vacuum also helps the rings seal since it's removing the crankcase pressure on that side of the piston.

 

[Cwazywazy]

, the turbo is new so that seems unlikely,

Is it from eBay?

 

[Wilford Brimley]

Is it from eBay?

It's a feature not a problem. Since you don't have a pcv. That is a good place to start. Having a vacuum pcv helps not only to remove the crankcase vapors and pressure. But the vacuum also helps the rings seal since it's removing the crankcase pressure on that side of the piston.

One turbo was one wasn't. Smoked both, yeah the pcv seems to make most sense then

 

[ZVOLV]

Maybe it is some of those painted engine parts smoking...

 

[Cwazywazy]

Are the plugs oil burn-y? Does it smoke during or after decel? Do you have a turbo oil restrictor? Is it clocked vaguely straight? Is there oil in your boost piping?

Also pcv gases smell gross, burn em.

 

[Wilford Brimley]

Are the plugs oil burn-y? Does it smoke during or after decel? Do you have a turbo oil restrictor? Is it clocked vaguely straight? Is there oil in your boost piping?

Also pcv gases smell gross, burn em.

No oil in pipes that I saw, didn't check the plugs, that's a good thought, yes there is a restriction on the feed, the drain faces down pretty decently

 

[Wilford Brimley]

Maybe I should put a nipple on the intake and hook it up to the pcv

 

[Wilford Brimley]

No oil in pipes that I saw, didn't check the plugs, that's a good thought, yes there is a restriction on the feed, the drain faces down pretty decently

Doesn't smoke when I'm really acceleration just on idle and initial accelerated, decel little puffs

 

[Wilford Brimley]

Wow that grammar was awful

 

[Wilford Brimley]

Also ngl I don't know much about pcv routing, do I need to just hook a hose from the pcv box to pre turbo or is there something else to hook up?

 

[Wilford Brimley]

I somewhat remember a vacuum line going from what I think was the flame trap to the intake manifold? Is that needed?

 

[Cwazywazy]

I somewhat remember a vacuum line going from what I think was the flame trap to the intake manifold? Is that needed?

That's only on n/a cars, just a hose from pcv box to turbo inlet pipe is all you need.

 

[Wilford Brimley]

That's only on n/a cars, just a hose from pcv box to turbo inlet pipe is all you need.

Thanks a lot dude I never took the time to learn that stuff at the start so in a sense I am a bit of dolt

 

[dl242gt]

Thanks a lot dude I never took the time to learn that stuff at the start so in a sense I am a bit of dolt

Actually, said like Church Lady. The small vacuum line is used on 740/940 from flame trapless plastic holder to the intake. The nipple on the intake has a different inside diameter than the n/a one.

It's the 240 turbo setup which only has the large hose to the turbo intake pipe. The 740 setup should work a little better.

 

[Wilford Brimley]

Well pcv is on and thicker oil and still smokes like mad when it warms up, I'm about to get rid of this car and focus on my old cj7 I'm very close to being over this damn thing. The second I turn the car off the smoke is gone, start it up and immediately smokes when warm, I'm just real tired of chasing this

 

[dl242gt]

my next suspect would be bad turbo seals or oil pressure is too high to the turbo. Use a restrictor to lower the oil pressure.

 

[Wilford Brimley]

my next suspect would be bad turbo seals or oil pressure is too high to the turbo. Use a restrictor to lower the oil pressure.

Good thought