sr20 smoking after shifting - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

elminsster80 · 08-25-2012, 10:30 PM

Hey guys im new here, i have a sr20 redtop pretty much stock. im having a problem after shifting. Right after shifting blue smoke puffs out of my tailpipe when hitting the gas. I know its obviously burning oil somehow but i dont know where its coming from

oni jake · 08-25-2012, 11:00 PM

Most likely, you're turbo exhaust seal is crapping out.

fufanu180 · 08-26-2012, 09:27 PM

Or the piston rings. Duh!

Or a simple PVC valve.

CenTex240

fufanu180 · 08-26-2012, 09:29 PM

Sorry, PCV valve

CenTex240

rcdad123 · 08-27-2012, 03:01 PM

it could be anything that introduces oil into the combustion chamber during high vacuum, like a faulty intake valve stem seals or the pcv valve. if it`s the turbo or the piston rings, it would smoke everytime, especially at high boost. since you said after shifting when you close the throttle, manifold pressure becomes negative or vacuum, which can suck oil into the manifold from faulty intake valve seals or pcv valve. check the pcv valve first. it`s the shiny steel that screws on to the valve cover and has a hose going to the intake manifold. replace that and go for a drive. if it still smokes in between shifts, you might have to replace the intake valve stem seals. good luck and i hope it`s only the pcv valve.

08-25-2012, 10:30 PM	#1
elminsster80 Join Date: Aug 2012 Location: chattanooga tn Posts: 1 Trader Rating: (0) Feedback Score: 0 reviews	sr20 smoking after shifting Hey guys im new here, i have a sr20 redtop pretty much stock. im having a problem after shifting. Right after shifting blue smoke puffs out of my tailpipe when hitting the gas. I know its obviously burning oil somehow but i dont know where its coming from

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08-25-2012, 11:00 PM	#2
oni jake Zilvia Junkie Join Date: Sep 2007 Location: Tallahassee FL Posts: 416 Trader Rating: (5) Feedback Score: 5 reviews	Most likely, you're turbo exhaust seal is crapping out.

08-26-2012, 09:27 PM	#3
fufanu180 Zilvia Junkie Join Date: Dec 2009 Location: Austin, Tx. Age: 30 Posts: 481 Trader Rating: (12) Feedback Score: 12 reviews	Or the piston rings. Duh! Or a simple PVC valve. CenTex240

08-26-2012, 09:29 PM	#4
fufanu180 Zilvia Junkie Join Date: Dec 2009 Location: Austin, Tx. Age: 30 Posts: 481 Trader Rating: (12) Feedback Score: 12 reviews	Sorry, PCV valve CenTex240

08-27-2012, 03:01 PM	#5
rcdad123 Zilvia Addict Join Date: Jul 2011 Location: san diego Posts: 639 Trader Rating: (0) Feedback Score: 0 reviews	it could be anything that introduces oil into the combustion chamber during high vacuum, like a faulty intake valve stem seals or the pcv valve. if it`s the turbo or the piston rings, it would smoke everytime, especially at high boost. since you said after shifting when you close the throttle, manifold pressure becomes negative or vacuum, which can suck oil into the manifold from faulty intake valve seals or pcv valve. check the pcv valve first. it`s the shiny steel that screws on to the valve cover and has a hose going to the intake manifold. replace that and go for a drive. if it still smokes in between shifts, you might have to replace the intake valve stem seals. good luck and i hope it`s only the pcv valve.