PDA

View Full Version : Some on decel


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.