E90Post
 


Bimmer Retrofit
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > is this a bad valve cover gasket?



Reply
 
Thread Tools Search this Thread
      04-12-2012, 06:56 PM   #1
mlifxs
Diamond Geezer
 
mlifxs's Avatar
 
Drives: Jet Black 2007 328i Saloon
Join Date: Nov 2007
Location: Florida

Posts: 1,734
iTrader: (1)

Garage List
is this a bad valve cover gasket?

here's a pic of the passenger side of the engine compartment of my e90 2007 328i N52

lately getting a "burnt" smell from my engine compartment, took a look. Looks like oil may be leaking around the star shaped bolts and pooling down at the mount in the lower left of the picture.

otherwise no signs of problems in how the car drives, accelerates etc.

is bad valve cover gasket a likely culprit here? appreciate any comments. Sorry the pic is so big.
Attached Images
 
mlifxs is offline  
0
Reply With Quote
      04-12-2012, 07:00 PM   #2
RupertPupkin
Lieutenant Colonel
 
RupertPupkin's Avatar
 
Drives: Freak Beast
Join Date: Aug 2011
Location: East

Posts: 1,534
iTrader: (5)

Yes. Youll need the gasket and all the bolts for it. Around $100 bucks from Tischer and can DIY fairly easily.

The gasket is usually fine but the bolts snap. Get all new parts and do it right


Quote:
Originally Posted by mlifxs View Post
here's a pic of the passenger side of the engine compartment of my e90 2007 328i N52

lately getting a "burnt" smell from my engine compartment, took a look. Looks like oil may be leaking around the star shaped bolts and pooling down at the mount in the lower left of the picture.

otherwise no signs of problems in how the car drives, accelerates etc.

is bad valve cover gasket a likely culprit here? appreciate any comments. Sorry the pic is so big.
RupertPupkin is offline   United_States
0
Reply With Quote
      04-12-2012, 07:16 PM   #3
mlifxs
Diamond Geezer
 
mlifxs's Avatar
 
Drives: Jet Black 2007 328i Saloon
Join Date: Nov 2007
Location: Florida

Posts: 1,734
iTrader: (1)

Garage List
Quote:
Originally Posted by jimmydever View Post
Yes. Youll need the gasket and all the bolts for it. Around $100 bucks from Tischer and can DIY fairly easily.

The gasket is usually fine but the bolts snap. Get all new parts and do it right
thanks for the response jimmydever
just looked at some threads, you have done this DIY?
have you seen a DIY posted anywhere or is it in Bentley? just curious how you figured it out,
mlifxs is offline  
0
Reply With Quote
      04-12-2012, 07:22 PM   #4
RupertPupkin
Lieutenant Colonel
 
RupertPupkin's Avatar
 
Drives: Freak Beast
Join Date: Aug 2011
Location: East

Posts: 1,534
iTrader: (5)

Still to this day haven't done it. I had a leak in a similar spot and bought all the parts last fall. They are sitting in my garage. I just havent found time yet to do it. Hoping to in the next few weeks.

Dont think there is a DIY on here for it, I may make one when I do the work.

Very common problem with this engine. The bolts were overtorqued from the factory and break, causing the leak.


Quote:
Originally Posted by mlifxs View Post
thanks for the response jimmydever
just looked at some threads, you have done this DIY?
have you seen a DIY posted anywhere or is it in Bentley? just curious how you figured it out,
RupertPupkin is offline   United_States
0
Reply With Quote
      04-12-2012, 09:19 PM   #5
blackbeast06
adrenergic stimulation
 
blackbeast06's Avatar
 
Drives: 2007 E92 335i
Join Date: Dec 2009
Location: Akron

Posts: 314
iTrader: (4)

Garage List
2006 325i  [0.00]
definitely a valve cover gasket. if you have a little bit of mechanical skills you just need patients to be able to do it. it seems daunting at first but it is manageable. the hardest part is getting the valve cover to clear the top of the fire wall but i figured out a specific way to rotate it and it slides out with the greatest of ease (of course after about 20 minutes of trying to force it out). some of the bolts will be snapped off with the rest sitting in the hole but you can turn them out by hand or with a small flat head.
__________________
07 335i. Montego Blue/Saddle Brown. 6 MT.

[IMG]
bm insta by senntera, on Flickr[/IMG]
blackbeast06 is offline   United_States
0
Reply With Quote
      04-13-2012, 05:47 AM   #6
mlifxs
Diamond Geezer
 
mlifxs's Avatar
 
Drives: Jet Black 2007 328i Saloon
Join Date: Nov 2007
Location: Florida

Posts: 1,734
iTrader: (1)

Garage List
Quote:
Originally Posted by blackbeast06 View Post
definitely a valve cover gasket. if you have a little bit of mechanical skills you just need patients to be able to do it. it seems daunting at first but it is manageable. the hardest part is getting the valve cover to clear the top of the fire wall but i figured out a specific way to rotate it and it slides out with the greatest of ease (of course after about 20 minutes of trying to force it out). some of the bolts will be snapped off with the rest sitting in the hole but you can turn them out by hand or with a small flat head.
thank you for your response. A couple questions if you don't mind :}

Have you been driving with you DIY fix for awhile? Do you recall how you rotated the cover?
mlifxs is offline  
0
Reply With Quote
      04-13-2012, 03:50 PM   #7
blackbeast06
adrenergic stimulation
 
blackbeast06's Avatar
 
Drives: 2007 E92 335i
Join Date: Dec 2009
Location: Akron

Posts: 314
iTrader: (4)

Garage List
2006 325i  [0.00]
i put about 1k on the car before i got rid of it. there were no leaks and everything ran fine. to get the valve cover off you have to lift the end up at the front of the car and then rotate it counter clockwise and then point the corner (the one closest to the passanger door) down. once you figure it out it will be easy.
__________________
07 335i. Montego Blue/Saddle Brown. 6 MT.

[IMG]
bm insta by senntera, on Flickr[/IMG]
blackbeast06 is offline   United_States
0
Reply With Quote
      04-13-2012, 05:18 PM   #8
mlifxs
Diamond Geezer
 
mlifxs's Avatar
 
Drives: Jet Black 2007 328i Saloon
Join Date: Nov 2007
Location: Florida

Posts: 1,734
iTrader: (1)

Garage List
Quote:
Originally Posted by blackbeast06 View Post
i put about 1k on the car before i got rid of it. there were no leaks and everything ran fine. to get the valve cover off you have to lift the end up at the front of the car and then rotate it counter clockwise and then point the corner (the one closest to the passanger door) down. once you figure it out it will be easy.
thanks for this !!!!
mlifxs is offline  
0
Reply With Quote
      04-13-2012, 05:28 PM   #9
GoRomeo
Colonel
 
GoRomeo's Avatar
 
Drives: 330i
Join Date: Feb 2006
Location: San Diego CA

Posts: 2,278
iTrader: (0)

Garage List
2006 330i  [2.83]
Quote:
Originally Posted by mlifxs View Post
here's a pic of the passenger side of the engine compartment of my e90 2007 328i N52

lately getting a "burnt" smell from my engine compartment, took a look. Looks like oil may be leaking around the star shaped bolts and pooling down at the mount in the lower left of the picture.

otherwise no signs of problems in how the car drives, accelerates etc.

is bad valve cover gasket a likely culprit here? appreciate any comments. Sorry the pic is so big.
I ve seen this on my N52, 330i. Its not as bad as yours but eventually will. Mine its on the corner and I see a drop on one of the hoses and not the exhaust. I wonder if its worth it to do the gasket replacement now or wait. Oil level has been ok for 4 months (max level). Im a open for suggestions. Thanks
GoRomeo is offline  
0
Reply With Quote
      04-14-2012, 10:34 PM   #10
gracc162
Registered
 
Drives: 2007 328i
Join Date: Apr 2012
Location: California

Posts: 1
iTrader: (0)

I am replacing he valve cover gasket. How did you get the wire harness out of the way? Thanks.
gracc162 is offline  
0
Reply With Quote
      04-15-2012, 07:25 AM   #11
mlifxs
Diamond Geezer
 
mlifxs's Avatar
 
Drives: Jet Black 2007 328i Saloon
Join Date: Nov 2007
Location: Florida

Posts: 1,734
iTrader: (1)

Garage List
Quote:
Originally Posted by gracc162 View Post
I am replacing he valve cover gasket. How did you get the wire harness out of the way? Thanks.
this may not help if you must change the gasket but...

I google searched "N52 valve cover gasket" and found a DIY on a 5 - series forum.

For fun, I googled "N52 valve cover gasket PITA" and got several distinct hits

There are some posts (responses) on this site suggesting that replacing the broken bolts may reduce the complexity of curing the problem.

So...I'm going to try that first....ordered some bolts from Tischer and if it doesn't work, I'll go with the gasket change.
mlifxs is offline  
0
Reply With Quote
      04-15-2012, 02:49 PM   #12
e90pilot
Freight Dawg
 
e90pilot's Avatar
 
Drives: E90 325i
Join Date: Jul 2005
Location: Oakland, CA

Posts: 2,105
iTrader: (3)

Before you do this, check out the valve cover itself above the gasket. There's oil coming down from the top of the engine. Check your oil filler cap, they also tend to leak. It could be both as well.
__________________
--Marcelo
'06 Arctic Metallic 325i | Sport Package | 6MT | Dinan Stage III suspension | Dinan exhaust | 330i manifold swap! Click here! | Active Autowerke tune | 135i Brake Calipers | Deiselboost caliper brackets | E46 M3 front rotors
e90pilot is offline   United_States
0
Reply With Quote
      04-15-2012, 04:40 PM   #13
mlifxs
Diamond Geezer
 
mlifxs's Avatar
 
Drives: Jet Black 2007 328i Saloon
Join Date: Nov 2007
Location: Florida

Posts: 1,734
iTrader: (1)

Garage List
Quote:
Originally Posted by e90pilot View Post
Before you do this, check out the valve cover itself above the gasket. There's oil coming down from the top of the engine. Check your oil filler cap, they also tend to leak. It could be both as well.
thanks will do
mlifxs is offline  
0
Reply With Quote
      03-08-2013, 09:35 AM   #14
SILENTKNIGHT
Registered
 
Drives: E90 330i M Sport Auto
Join Date: Mar 2013
Location: Wiltshire

Posts: 3
iTrader: (0)

Quote:
Originally Posted by mlifxs View Post
here's a pic of the passenger side of the engine compartment of my e90 2007 328i N52

lately getting a "burnt" smell from my engine compartment, took a look. Looks like oil may be leaking around the star shaped bolts and pooling down at the mount in the lower left of the picture.

otherwise no signs of problems in how the car drives, accelerates etc.

is bad valve cover gasket a likely culprit here? appreciate any comments. Sorry the pic is so big.
Sorry if I've posted this in the wrong place, but I had the same problem I think, today while driving I had a smell of burning (rubber smell) then smoke came through the air vents and in to the car. Looked under the bonnet and no smoke at all. But there is oil around the head gasket, the oil filler cap and also looks as though in the tray beneath the engine. Car was serviced recently and as the engine was overheating, I had the water pump and thermostat changed. Garage said that the head gasket was fine at the time! Any ideas?? and how does smoke come through the vents and into the cars cabin?
SILENTKNIGHT is offline  
0
Reply With Quote
      03-08-2013, 12:28 PM   #15
mlifxs
Diamond Geezer
 
mlifxs's Avatar
 
Drives: Jet Black 2007 328i Saloon
Join Date: Nov 2007
Location: Florida

Posts: 1,734
iTrader: (1)

Garage List
Quote:
Originally Posted by SILENTKNIGHT View Post
Sorry if I've posted this in the wrong place, but I had the same problem I think, today while driving I had a smell of burning (rubber smell) then smoke came through the air vents and in to the car. Looked under the bonnet and no smoke at all. But there is oil around the head gasket, the oil filler cap and also looks as though in the tray beneath the engine. Car was serviced recently and as the engine was overheating, I had the water pump and thermostat changed. Garage said that the head gasket was fine at the time! Any ideas?? and how does smoke come through the vents and into the cars cabin?
not sure about the smoke through the vents, though the odor definitely came into the cabin for me. Oil dripping on exhaust manifold.

Problem could be:
a. Oil spilled near filler neck when oil changed / filled
b. Oil filter housing gasket
c. Valve cover gasket
d. Something else I don't know about

if you're not showing a significant loss of oil and want to research further, there are plenty of threads. For me, I wasn't losing a lot of oil so I took my time, cleaned all the oil off everywhere I found it and watched for awhile until I was convinced it couldn't be a. above. Eventually, it turned out to be b. and c. Had dealer do c. and I diy'd b., which is not difficult if you have right tools and are so inclined.
mlifxs is offline  
0
Reply With Quote
      03-08-2013, 01:19 PM   #16
Bartman619
Captain
 
Drives: Bimmer
Join Date: Jun 2008
Location: SDCA

Posts: 679
iTrader: (2)

FYI...if you're CPO then it's covered. I had mine fixed under CPO.
Bartman619 is offline  
0
Reply With Quote
      03-08-2013, 01:34 PM   #17
mlifxs
Diamond Geezer
 
mlifxs's Avatar
 
Drives: Jet Black 2007 328i Saloon
Join Date: Nov 2007
Location: Florida

Posts: 1,734
iTrader: (1)

Garage List
Quote:
Originally Posted by Bartman619 View Post
FYI...if you're CPO then it's covered. I had mine fixed under CPO.
yeah for vcg that would be a good thing. Dealer charged me $780, "discounted" since my car is a senior citizen.
mlifxs is offline  
0
Reply With Quote
      03-09-2013, 05:55 PM   #18
stoppy
Private
 
stoppy's Avatar
 
Drives: 2006 330i blk, Sport Pkg, 6spd
Join Date: Apr 2012
Location: Ontario

Posts: 57
iTrader: (3)

Hey,
Here is a good DIY for getting that valve cover and replacing the gasket:

http://www.e90post.com/forums/showthread.php?t=697252

I replaced my valvetronic shaft sensor and I needed to get all of this crap off. Ill be honest, it was a nightmare getting the valve cover off because the oil vapor nozzle on the valve cover its super tight. Plus the wire harness is just a PITA! But felt good once all finished. Here is the thread if you wanted to check it out.
http://www.e90post.com/forums/showth...=501907&page=2
stoppy is offline  
0
Reply With Quote
      03-09-2013, 06:01 PM   #19
mlifxs
Diamond Geezer
 
mlifxs's Avatar
 
Drives: Jet Black 2007 328i Saloon
Join Date: Nov 2007
Location: Florida

Posts: 1,734
iTrader: (1)

Garage List
Quote:
Originally Posted by stoppy View Post
Hey,
Here is a good DIY for getting that valve cover and replacing the gasket:

http://www.e90post.com/forums/showthread.php?t=697252

I replaced my valvetronic shaft sensor and I needed to get all of this crap off. Ill be honest, it was a nightmare getting the valve cover off because the oil vapor nozzle on the valve cover its super tight. Plus the wire harness is just a PITA! But felt good once all finished. Here is the thread if you wanted to check it out.
http://www.e90post.com/forums/showth...=501907&page=2
thanks!
mlifxs is offline  
0
Reply With Quote
      04-02-2013, 08:26 AM   #20
ezpac
New Member
 
ezpac's Avatar
 
Drives: 325i 2006
Join Date: Dec 2012
Location: Pompano Beach, FL

Posts: 17
iTrader: (0)

I've just replaced the valve cover gasket on my 325i 2006 N52 this weekend. It was my first time doing such "big" project. You need a LOT of patience but it's doable. These were some of the main "challenges":

1 - Finding a torque wrench that accurately measures ~7lb of torque.
I went to several hardware shops and could not find the one I needed. So I bought one at Ace that advertised 5-80lb and on the first bolt it snapped, mind you I set it to 5lbs just to make sure, and the bolt broke anyway. So I was pissed and returned the wrench, then I went to Harbour Freight Tools and got another 5-80lbs (lowest setting I could find) and surprise surprise...Another bolt broken. So I just used 2 old bolts and tighten them by hand. I really hate to do that but I had no choice. I'll probably stop by an indy shop and ask them to torque check the bolts.

2 - Pay close attention to the Valvetronic Motor. Check this video, you'll need an allen wrench.


3 - There are 2 "cables"(I don't know what they are) that go from one side of the engine to the other, passing through the back side, where you can only access if you have small hands. I found a lot easier to remove and put the cove on after moving them out of the way. To do so, you'll need to remove the vapor hose (blue) and kinda feel the clip that holds both cables.


4 - Be careful with the plastic clip (in blue). I broke one of them (there are two) in the process of removing the cover.


5 - Use a bungee cord to hold the cables up, It makes everything much easier. I got the idea from this video

6 - You have to kinda twist the cover around to remove it and put it back but be careful with the valvetronic motor support, which is the highest part of the engine (if it wasn't for that little part this job would be a LOT easier)


I think that's about it, I'll keep this updated if I can remember anything else.
ezpac is offline   Brazil
0
Reply With Quote
      04-02-2013, 01:51 PM   #21
index1489
Colonel
 
index1489's Avatar
 
Drives: Out of warranty BMW
Join Date: Sep 2008
Location: Chino, CA

Posts: 2,037
iTrader: (7)

Guys, get torque wrenches from cditorque.com for stuff like this.
__________________
Gotta pay to play.
index1489 is offline   United_States
0
Reply With Quote
      04-02-2013, 03:03 PM   #22
mlifxs
Diamond Geezer
 
mlifxs's Avatar
 
Drives: Jet Black 2007 328i Saloon
Join Date: Nov 2007
Location: Florida

Posts: 1,734
iTrader: (1)

Garage List
thanks for this. Curious, How did you manage the crankcase breather hose connection?
__________________
AA Stage 2 - M3 control Arms FR - BMW PS2 - Dinan springs - APEX EC-7 - H&R front swaybar - GC street camber plates - Whiteline subframe inserts
mlifxs is offline  
0
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Forum Jump


All times are GMT -5. The time now is 07:49 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST