Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E90/E91/E92/E93 (2006 - 2013)

E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

Reply
 
Thread Tools Display Modes
  #1  
Old 04-13-2014, 11:29 AM
StereoSteve StereoSteve is offline
Registered User
Location: Georgia
 
Join Date: Mar 2014
Posts: 33
Mein Auto: 07 E92 / 86 K75
white smoke from rear engine..

[begin rant]
2007 328i E92
just did a valve cover gasket replacement (also replaced valvetronic motor gasket). started her up and she purred like a kitten. took a short drive (less than 5 minutes) and when i returned home there was white smoke from rear engine and a very clear burning smell (oil?) and heard crackling (like cooking chicken on a hot pan). afraid of a fire, i poured water and after about 10 minutes the smoke cleared. i did have a little oil in two center spark plugs, but cleaned those out the best i could figuring they were leaks from the old gasket. i also spilled a little coolant when i took off the hose doing the gasket replacement (i read: white smoke = coolant / balck = oil ???). i dont see anything dripping/leaking and the car drives fine and throws no codes. any ideas? i can look like a fool here, but i dont want to go to a shop and be laughed at in person. haha
[/end rant]

Last edited by StereoSteve; 04-13-2014 at 11:33 AM.
Reply With Quote
Ads by Google
  #2  
Old 04-13-2014, 11:51 AM
CALWATERBOY's Avatar
CALWATERBOY CALWATERBOY is offline
Officially Welcomed to the 'Fest
Location: San Francisco
 
Join Date: Aug 2009
Posts: 10,009
Mein Auto: 2009 E93 N54
Quote:
Originally Posted by StereoSteve View Post
[begin rant]
2007 328i E92
just did a valve cover gasket replacement (also replaced valvetronic motor gasket). started her up and she purred like a kitten. took a short drive (less than 5 minutes) and when i returned home there was white smoke from rear engine and a very clear burning smell (oil?) and heard crackling (like cooking chicken on a hot pan). afraid of a fire, i poured water and after about 10 minutes the smoke cleared. i did have a little oil in two center spark plugs, but cleaned those out the best i could figuring they were leaks from the old gasket. i also spilled a little coolant when i took off the hose doing the gasket replacement (i read: white smoke = coolant / balck = oil ???). i dont see anything dripping/leaking and the car drives fine and throws no codes. any ideas? i can look like a fool here, but i dont want to go to a shop and be laughed at in person. haha
[/end rant]

Assuming when you say 'rear engine' you mean from the engine compartment -- try startin' her up with the hood raised. Don't go anywhere - wait for it.

OK - what's the source?

I love a shade tree!
Reply With Quote
  #3  
Old 04-13-2014, 03:59 PM
StereoSteve StereoSteve is offline
Registered User
Location: Georgia
 
Join Date: Mar 2014
Posts: 33
Mein Auto: 07 E92 / 86 K75
yes, the back of the engine compartment. it happens as soon as i start it.
http://i33.photobucket.com/albums/d8...randsensor.jpg

near the red circle but from underneath. almost like the back of the valve cover. could i have put the gasket on wrong? i triple checked to make sure it was on there. as stated, car drives smooth and has no codes.
Reply With Quote
  #4  
Old 04-14-2014, 04:29 AM
hondo402000 hondo402000 is offline
Officially Welcomed to the 'Fest
Location: Charlotte, NC
 
Join Date: Nov 2012
Posts: 1,672
Mein Auto: 2007-335 HTC
I have read that the valve cover is a little difficult to get back on with a new gasket and the gasket can get knocked loose when you try to get it back on, you need one of those small mirrors to check and see if its not on good in the back. otherwise you might have to pull the valve cover back off and double check

that place in the back where the smoke if coming from would be the exhaust system side
Reply With Quote
  #5  
Old 04-14-2014, 07:31 AM
StereoSteve StereoSteve is offline
Registered User
Location: Georgia
 
Join Date: Mar 2014
Posts: 33
Mein Auto: 07 E92 / 86 K75
the cover is a pain to get in and out. whenever i would flip over the valve cover, the gasket would slip off at some point, however with an extra set of eyes and hands, we were pretty confident we got it on there. ive read oil leaks from the cover onto the exhaust causing the smoke. im really hoping its just coolant that sprayed when i took off the hose burning off.
Reply With Quote
  #6  
Old 04-14-2014, 07:41 AM
White94RX White94RX is offline
Officially Welcomed to the 'Fest
Location: Atlanta
 
Join Date: Dec 2013
Posts: 355
Mein Auto: E39 540
You rolled the gasket out of the channel during installation. I can pretty much guarantee it
__________________
BMW Level 1 Master Certified
2001 BMW 540i
Reply With Quote
  #7  
Old 04-17-2014, 07:42 AM
StereoSteve StereoSteve is offline
Registered User
Location: Georgia
 
Join Date: Mar 2014
Posts: 33
Mein Auto: 07 E92 / 86 K75
took it to a shop. they said it was a warped valve cover and replaced the bolts (which they said to do on most/all bolts every time you take them out). The car ran fine pre and post operation, but the leak did get a little worse after I did my replacements. Still unsure if I made the leak worse (by not fitting the gasket completely on) or if the warped cover is what caused my initial leak?

anyways, back on the road. Thanks to all that replied
Reply With Quote
  #8  
Old 04-17-2014, 11:54 PM
sptt144 sptt144 is offline
Officially Welcomed to the 'Fest
Location: Orange County, Ca.
 
Join Date: Aug 2012
Posts: 1,024
Mein Auto: 2009 335i
...a warped valve cover hmmm??? Maybe just not bolted down properly and they rebolted it on the right way...? Glad it's fixed.
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E90/E91/E92/E93 (2006 - 2013)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



Forum Jump


All times are GMT -7. The time now is 10:14 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms