white smoke ONLY when slowing/stopping
06-30-06, 08:03 PM
#1
Full Member
Thread Starter
Join Date: Apr 2006
Location: torrance, cali
Posts: 50
Likes: 0
Received 0 Likes
on
0 Posts
white smoke ONLY when slowing/stopping
well i have a 89 GTUs with a TII engine. engine was rebuilt and only had a little over 8k on it. it ran perfectly fine till something in my clutch broke. i fixed that and now when i drive around when i come to a stop i get engulfed in white smoke. at times its not so bad but sometimes when i come to a stop heavy smoke comes out. it doesnt do it at idle and it doesnt do it if i gun it, only when im stopping. the car still drives perfect. idle is the same, starts up the same and everything. my mechanic says it might be the sealant he used on my exhuast gaskets when he put it back on but it seems like that it should of burned off by now but it still isnt getting any better. anyone have any clues to help me out? =/
07-01-06, 11:58 AM
#4
Road Rotary Aviator
Join Date: Apr 2004
Location: Oregon
Posts: 499
Likes: 0
Received 0 Likes
on
0 Posts
wow, I have the exact same problem. Well actually mine smokes when stopping sometimes and if I drive a constant speed without modulating the throttle for like 5 to 10 minutes it'll start doing it as well. It started yesterday when it was 90F outside, I'm wondering if that has anything to do with it.
What I was thinking is that it's somehow related to the MOP system since the smoke instantly goes away when you give it some gas even if the RPMs don't change (5th gear) which is when the oil injection system goes full open. That wouldn't really explain it going away at idle though...
What I was thinking is that it's somehow related to the MOP system since the smoke instantly goes away when you give it some gas even if the RPMs don't change (5th gear) which is when the oil injection system goes full open. That wouldn't really explain it going away at idle though...
07-02-06, 09:49 AM
#7
It could be your one of your oil control O-rings on the side of a rotor. We just had a problem on a new build in a race car. The engine had about 10hrs on it and it would smoke at idle but not so much when under power. It turned out to be 3 of the 4 inner 0-rings were bad. The outer rings were all fine, it was just a set of crap 0-rings. I suspect that when under vacuum at idle the oil was given some help getting passed the 0-rings, but under load combustion pressure helped keep the oil from getting passed the second 0-ring.
If you have a turbo, just hope its the seals in that. Turbo rebuilds are easy. There isn't really anyway to double check the oil 0-rings before you tear the engine down. But if you pull the exhaust off and see one or both ports a little wet its most likely 0-rings.
If you have a turbo, just hope its the seals in that. Turbo rebuilds are easy. There isn't really anyway to double check the oil 0-rings before you tear the engine down. But if you pull the exhaust off and see one or both ports a little wet its most likely 0-rings.
Thread
Thread Starter
Forum
Replies
Last Post
frosty1993
General Rotary Tech Support
3
09-30-15 01:27 PM
