Cold start oil burning

[91GT]

I have a question for a Friend with an L. Wondering if you guys have heard of this before.

It smokes a good bit when started cold and the two rear plugs are fouled pretty good with oil.

The previous owner bought a kit that had something to do with the PCV system that was supposed to fixt the issue, however it still smokes.

Any ideas?

Thanks

 

[Lightning&Stang]

I have a question for a Friend with an L. Wondering if you guys have heard of this before.

It smokes a good bit when started cold and the two rear plugs are fouled pretty good with oil.

The previous owner bought a kit that had something to do with the PCV system that was supposed to fixt the issue, however it still smokes.

Any ideas?

Thanks

Mine does this too...but it's just a puff of smoke when started cold.

 

[Smokinjoe]

Mine does this too...but it's just a puff of smoke when started cold.

Mine too, just a puff.

 

[DjKush]

Mine too, just a puff.

well puff puff pass! haha :banana:

 

[69mach]

mine too... I think this is the oil is sucks up into the upper intake from the PVC

 

[02_lightning_NP]

all of our trucks do it because of the vcacuum caused under boost which sucks the oil out of the valve covers and into the plenum, if your friend has alot of smoke and his plugs are fowled out it most likely NOT caused by this, he needs to get the valves checked in his heads cause he might draining oil into the combustion chamber from them. just a thought tho

 

[Jarrett H]

Valve guides/seals. Truck sits, oil collects.

 

[91GT]

mine too... I think this is the oil is sucks up into the upper intake from the PVC

all of our trucks do it because of the vcacuum caused under boost which sucks the oil out of the valve covers and into the plenum, if your friend has alot of smoke and his plugs are fowled out it most likely NOT caused by this, he needs to get the valves checked in his heads cause he might draining oil into the combustion chamber from them. just a thought tho

Anyone have any fixes for this?

I have my doubts on it being the valve seals/guides. Only seems to be an issue with the rear two holes and it doesn't smoke a ton.

 

[Lightning&Stang]

Valve guides/seals. Truck sits, oil collects.

That was my guess

 

[02_lightning_NP]

i remember a while back a thread about stock heads have really nasty hot spots that form at the rear of our heads when pushed realy hard and they can actually melt the heads if pushed to bad. not all heads i guess just some he may have just warped the valves if the main heat soak spot is in fact in the rear end of said heads. never know just throwing out ideas.

 

[Robert Francis]

If he has oil fouled plugs on those two cylinders, he needs to do a compression or leak down test on them.