Smoke when decelerating

[mandingo]

I get very little smoke when i start the engine and it goes away pretty fast, I get no smoke when i go WOT, when i decelerate from WOT i get ploom of whitish blue smoke, could this be related to my PCV set up, since it is no longer stock due to the ATA plumbing, i currently have a PCV on the pass side that has an oil seperator then connect to the vac on the intake, on the drivers side i have a pcv that is hollow that the hose runs acrross the engine to the other side and plugs into a hole in my KN filter, any suggestions on how to get it not to smoke under WOT deceleration (odd thing is it doesnt do it all the time)
TIA , Tony

 

[lavaman]

Re: Smoke when decelerating

Possible worn valve seals.

 

[Mtn Z]

Re: Smoke when decelerating

I was thinking rings because that is what typically happens on LS1 F-bodies. We get smoke on decel after WOT when our rings are shot.

 

[mandingo]

Re: Smoke when decelerating

I was thinking rings because that is what typically happens on LS1 F-bodies. We get smoke on decel after WOT when our rings are shot.

Your probably right, but wouldnt you get some smoke accelerating at wot with bad rings :dunno:

 

[SY756]

Re: Smoke when decelerating

Your probably right, but wouldnt you get some smoke accelerating at wot with bad rings :dunno:

I had the same prob on my Sy. I was the rings. Under WOT you are pushing in air/fuel via the TB tract causing any blow by to go down thru the rings to the bottom end. Now, let off and all of a sudden the TB butterflys close and creates a vacuum in the cylinder so it will pull oil and vapor from the bottom end into the cylinder thru the rings, causing the smoke.
At least thats what was wrong with mine. Hope your's is something else. Good luck .