Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Arnott
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-11-2019, 04:37 PM
Member
 
Join Date: Jul 2018
Location: Texas
Posts: 5
Jaytee007 is on a distinguished road
Valve covers leaking after replacing

Hello everyone!! Iím posting on this to see if anyone has ran into this before and to share this wonderful experience (sarcasm). I have a 2006 x5 4.4 the n62 engine with about 163000 miles. I replaced the valve cover gaskets at 160k because they were leaking real bad from the rear of the engine and on the sides. I noticed another oil leak the other day and behold itís coming from the valve cover gaskets 😡 I didnít use any sealant when I first replaced them just new gaskets . I probably didnít tighten the bolts hard enough because I knew the valve covers are made up of plastic and I did not want them to crack. I did leave them pretty tight though but not super tight. Iím thinking about tightening down the bolts and cleaning up and seeing if that does the trick. Any input is greatly appreciated. Iíll also follow up on conclusion I reach
Reply With Quote

Sponsored Links

  #2  
Old 01-11-2019, 04:53 PM
Member
 
Join Date: Sep 2016
Location: USA
Posts: 139
Bdc101 is on a distinguished road
When I did the VC on my M54, I had the same problem. Turned out I had folded the gasket on the very back of the cover. Couldn't see it without pulling it back off. It's very hard to see and get to back there, at least on the M54.
__________________
2003 3.0 5-speed
Reply With Quote
  #3  
Old 01-11-2019, 05:15 PM
X5only's Avatar
Premier Member
 
Join Date: Feb 2008
Location: Bellevue, WA
Posts: 807
X5only is on a distinguished road
Yeah, most likely what Bdc pointed out. Use a mirror or endoscope camera to confirm the gasket is seated properly in the rear. Not much tightening torque is required. Here's instructions with torque values and where and how to apply sealant:

https://www.newtis.info/tisv2/a/en/e...th-lid/Di8VwSB
Attached Images
 
__________________
'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M.

Last edited by X5only; 01-11-2019 at 05:40 PM.
Reply With Quote
  #4  
Old 01-11-2019, 05:43 PM
Member
 
Join Date: Jul 2018
Location: Texas
Posts: 5
Jaytee007 is on a distinguished road
Thanks Iíll check it out tomorrow early and let you guys know what I find
Reply With Quote
  #5  
Old 01-11-2019, 06:46 PM
Member
 
Join Date: Nov 2014
Location: SF Bay Area
Posts: 687
oldskewel is on a distinguished road
Good instructions in that link above. In case it's not clear there, you are supposed to only use a little of the Drei Bond 1209 at very specific points: the transition seams where the timing chain cover meets the head, and the sharp corners in the half moon things. The gasket should be able to handle everything else as long as the surfaces are clean, but I guess those areas, due to the sharpness of the surface changes need a little help from the Drei Bond.

(that's how my M54 was when I did this recently on it)

And as I recall from the M54, torquing down those ~15 cylinder head cover screw/grommet things, do it gradually, in the specified sequence, the valve cover / head cover will flex (the one on my M54 is plastic) as the gasket compresses, through many turns of the screws. Then the screws will effectively bottom out and the torque value (a low 10 Nm for the M6 screws on my M54) will be reached.

You will definitely feel when it bottoms out; if you don't, you may not have torqued far enough. It's similar to torquing on the oil filter housing cap on an M54 - for many turns you are just sliding the plastic parts past eachother, with an o-ring in the middle, then the plastic finally bottoms out and you torque to the 25 Nm.

Before doing that myself, I had read of cases on the interwebs of problems, and found a few competing and completely contradictory best practices for doing this job, all of which seemed to make sense. After careful consideration I ignored all that and followed the book exactly, and have had no issues at all.

I got the Drei Bond 1209 at RM European:
https://www.rmeuropean.com/Products/...G976-V592.aspx
__________________
2001 X5 3.0i, 180k miles, AT, owned since 11/2014
Reply With Quote
  #6  
Old 01-11-2019, 07:45 PM
andrewwynn's Avatar
Premier Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 2,902
andrewwynn is on a distinguished road
Determine exact spot of the leak. A couple places need some sealant. If leaking elsewhere then something in the way of a good seal
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #7  
Old 01-11-2019, 08:00 PM
Member
 
Join Date: Jul 2018
Location: Texas
Posts: 5
Jaytee007 is on a distinguished road
Quote:
Originally Posted by oldskewel View Post
Good instructions in that link above. In case it's not clear there, you are supposed to only use a little of the Drei Bond 1209 at very specific points: the transition seams where the timing chain cover meets the head, and the sharp corners in the half moon things. The gasket should be able to handle everything else as long as the surfaces are clean, but I guess those areas, due to the sharpness of the surface changes need a little help from the Drei Bond.

(that's how my M54 was when I did this recently on it)

And as I recall from the M54, torquing down those ~15 cylinder head cover screw/grommet things, do it gradually, in the specified sequence, the valve cover / head cover will flex (the one on my M54 is plastic) as the gasket compresses, through many turns of the screws. Then the screws will effectively bottom out and the torque value (a low 10 Nm for the M6 screws on my M54) will be reached.

You will definitely feel when it bottoms out; if you don't, you may not have torqued far enough. It's similar to torquing on the oil filter housing cap on an M54 - for many turns you are just sliding the plastic parts past eachother, with an o-ring in the middle, then the plastic finally bottoms out and you torque to the 25 Nm.

Before doing that myself, I had read of cases on the interwebs of problems, and found a few competing and completely contradictory best practices for doing this job, all of which seemed to make sense. After careful consideration I ignored all that and followed the book exactly, and have had no issues at all.

I got the Drei Bond 1209 at RM European:
https://www.rmeuropean.com/Products/...G976-V592.aspx

Good info!! I didnít bottom them out. I was afraid of cracking the valve covers. On the n62 they are plastic as well. Since the bolts bottom out I guess it should be no problem.Iím going to order the Drei bond as well.
Reply With Quote
  #8  
Old 01-11-2019, 08:29 PM
Member
 
Join Date: Jun 2013
Location: VA
Posts: 384
OptimusPriM5 is on a distinguished road
Did you see where leak is coming from?
Reply With Quote
  #9  
Old 01-11-2019, 08:41 PM
Member
 
Join Date: Jul 2018
Location: Texas
Posts: 5
Jaytee007 is on a distinguished road
Quote:
Originally Posted by OptimusPriM5 View Post
Did you see where leak is coming from?
I was not able to see it but I felt around the engine. It was moist towards the rear where the crescent shape is on both heads. The side was dry on one head and I couldnít feel on the other side head it was too tight. Iíll know for sure tomorrow when I use my little mirror.
Reply With Quote
  #10  
Old 01-11-2019, 08:58 PM
bcredliner's Avatar
X HP/TQ increase = $1.00 X 100X
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 6,583
bcredliner is on a distinguished road
Quote:
Originally Posted by Jaytee007 View Post
Good info!! I didnít bottom them out. I was afraid of cracking the valve covers. On the n62 they are plastic as well. Since the bolts bottom out I guess it should be no problem.Iím going to order the Drei bond as well.
As mentioned torque in sequence. Do in two stages, use a torque wrench not just tighten the bolts until they bottom out. Over torquing the bolts can also cause a leak.
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas

Link to mods done
http://www.xoutpost.com/members/bcredliner/
Reply With Quote
Reply

Bookmarks

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 04:29 AM.
vBulletin, Copyright 2019, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.