smoky exhaust

Need technical Q/A then you're in the right place

Moderator: martauto

Post Reply
User avatar
jbeemer09
E30 Zone Newbie
E30 Zone Newbie
Posts: 17
Joined: Sat May 16, 2009 11:00 pm

Wed Nov 04, 2009 9:29 pm

i have recently been getting more smoke coming out the exhaust than usual? i dont no wether its because of the winter kicking in or what? its not so bad once warm thanks guys
Tedswagon
E30 Zone Addict
E30 Zone Addict
Posts: 2195
Joined: Sun Nov 23, 2008 11:00 pm
Location: Edinburgh

Thu Nov 05, 2009 1:56 pm

Watch your oil levels, check for mayo under the oil cap.

Worst case it is stem seals on they're way out. That's not so good.
E30 316i auto coupe build thread here viewtopic.php?f=25&t=273035
//Rocky
E30 Zone Regular
E30 Zone Regular
Posts: 850
Joined: Tue Jan 06, 2009 11:00 pm

Thu Nov 05, 2009 2:09 pm

Yeah as said above have a look at your oil levels
Ziggy
E30 Zone Team Member
E30 Zone Team Member
Posts: 11534
Joined: Mon Jan 10, 2005 11:00 pm
Location: floating round my tin can...

Thu Nov 05, 2009 2:14 pm

What colour is the smoke? If it's blue/grey & mainly on startup then stem seals would indeed be a suspect. More likely to just be condensation if it doesn't do it in the summer though!
E30 in need of wiring loom smoke since April '11...
march109
Engaged to the E30 Zone
Engaged to the E30 Zone
Posts: 6632
Joined: Sun Aug 20, 2006 11:00 pm
Location: Bournemouth
Contact:

Thu Nov 05, 2009 2:28 pm

Ziggy wrote:What colour is the smoke? If it's blue/grey & mainly on startup then stem seals would indeed be a suspect. More likely to just be condensation if it doesn't do it in the summer though!
As above and condensation will dissipate in the air where as smoke won't. Smoke will also above be grey or blue and steam closer to true white.

If your unsure a mirror or glass panel held in the gas will bead with water if its condenstaion. I forget the ratio of water produced from a litre of fuel but its surprisingly high, and is the most likely culprit.
325i Tech 1 Touring, breaking.

2.5 high comp. M20, 3.64 LSD, Fully undersealed, Spax springs & Bilstein shocks, s/s exhaust, Alpina rep wheels and more.
User avatar
jbeemer09
E30 Zone Newbie
E30 Zone Newbie
Posts: 17
Joined: Sat May 16, 2009 11:00 pm

Thu Nov 05, 2009 8:40 pm

sound thanks alot people
Post Reply