Some on decel - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

lv240s14 · 04-04-2008, 03:20 AM

so basically its a new motor broke it in with 500 miles nice driving then slowing started giving more and more power. now i am get alot of smoke on decel... like alot, oil presure is fine no loss of power just smokes a shitload after i boost and let off...... the turbo was rebuilt awhile ago. i think thats it but i'm not sure. do motor's ever smoke on decel because of other reason's.....

*fliprayzin240sx* · 04-04-2008, 09:13 AM

Could be a bad seal on the turbo. Does it do it too on idle once the engine gets hot?

Sileighty_85 · 04-04-2008, 10:54 AM

^^Agree, who rebuilt the turbo?

lv240s14 · 04-04-2008, 03:55 PM

limit engineering which is recommended by garrett's website...

Sileighty_85 · 04-04-2008, 04:00 PM

Did you replace the Valve Guide Seals?

lv240s14 · 04-04-2008, 04:03 PM

yes the head was rebuilt

lv240s14 · 04-04-2008, 04:04 PM

can someone change the thread topic to " smoke on decel. turbo?"

GSXRJJordan · 04-04-2008, 04:38 PM

I could be smoking all the time, but since when you're accelerating there's more exhaust to mix with the smoke, you don't see it.

If it's not the turbo seals (which is most likely), it could be a bad PCV valve/no catch can.

lv240s14 · 04-04-2008, 04:48 PM

no its not smoking all the time. it just smokes on decel and a shitload.

*fliprayzin240sx* · 04-04-2008, 04:55 PM

Color smoke? Black, blue-ish, white?

lv240s14 · 04-04-2008, 05:37 PM

its white i am pretty sure its the coolant seal on the turbo...

GSXRJJordan · 04-04-2008, 07:24 PM

Easy way to test that ~ if you have SS lines, route the water feed to the water return, and put two M14x1.50 bolts into the turbo's water line ports. The turbos are oil-lubricated anyway, won't hurt just for a test.

04-04-2008, 03:20 AM	#1
lv240s14 Zilvia Junkie Join Date: Jan 2005 Location: Las vegas Age: 39 Posts: 464 Trader Rating: (1) Feedback Score: 1 reviews	Smoke on decel!!!!!!! turbo?? so basically its a new motor broke it in with 500 miles nice driving then slowing started giving more and more power. now i am get alot of smoke on decel... like alot, oil presure is fine no loss of power just smokes a shitload after i boost and let off...... the turbo was rebuilt awhile ago. i think thats it but i'm not sure. do motor's ever smoke on decel because of other reason's.....

04-04-2008, 09:13 AM	#2
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Could be a bad seal on the turbo. Does it do it too on idle once the engine gets hot? __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

04-04-2008, 10:54 AM	#3
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	^^Agree, who rebuilt the turbo? __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

04-04-2008, 04:00 PM	#5
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Did you replace the Valve Guide Seals? __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

04-04-2008, 04:38 PM	#8
GSXRJJordan Post Whore! Join Date: May 2006 Location: San Diego, CA Posts: 9,135 Trader Rating: (19) Rides Gallery: GSXRJJordan Feedback Score: 19 reviews	I could be smoking all the time, but since when you're accelerating there's more exhaust to mix with the smoke, you don't see it. If it's not the turbo seals (which is most likely), it could be a bad PCV valve/no catch can. __________________ Jordan Innovations has a new web site! www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com

04-04-2008, 03:55 PM	#4
lv240s14 Zilvia Junkie Join Date: Jan 2005 Location: Las vegas Age: 39 Posts: 464 Trader Rating: (1) Feedback Score: 1 reviews	limit engineering which is recommended by garrett's website...

04-04-2008, 04:03 PM	#6
lv240s14 Zilvia Junkie Join Date: Jan 2005 Location: Las vegas Age: 39 Posts: 464 Trader Rating: (1) Feedback Score: 1 reviews	yes the head was rebuilt

04-04-2008, 04:04 PM	#7
lv240s14 Zilvia Junkie Join Date: Jan 2005 Location: Las vegas Age: 39 Posts: 464 Trader Rating: (1) Feedback Score: 1 reviews	can someone change the thread topic to " smoke on decel. turbo?"

04-04-2008, 04:48 PM	#9
lv240s14 Zilvia Junkie Join Date: Jan 2005 Location: Las vegas Age: 39 Posts: 464 Trader Rating: (1) Feedback Score: 1 reviews	no its not smoking all the time. it just smokes on decel and a shitload.

04-04-2008, 04:55 PM	#10
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Color smoke? Black, blue-ish, white? __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

04-04-2008, 05:37 PM	#11
lv240s14 Zilvia Junkie Join Date: Jan 2005 Location: Las vegas Age: 39 Posts: 464 Trader Rating: (1) Feedback Score: 1 reviews	its white i am pretty sure its the coolant seal on the turbo...

04-04-2008, 07:24 PM	#12
GSXRJJordan Post Whore! Join Date: May 2006 Location: San Diego, CA Posts: 9,135 Trader Rating: (19) Rides Gallery: GSXRJJordan Feedback Score: 19 reviews	Easy way to test that ~ if you have SS lines, route the water feed to the water return, and put two M14x1.50 bolts into the turbo's water line ports. The turbos are oil-lubricated anyway, won't hurt just for a test. __________________ Jordan Innovations has a new web site! www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com