Valve Cover Bolts - Bimmerfest - BMW Forums



Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > Z Series > E85 / E86 Z4 (2003-2008)

E85 / E86 Z4 (2003-2008)
E85 Z4 Roadster, E86 Z4 Coupe, E85 Z4 M Roadster, and E86 Z4 M Coupe talk with our BMW gurus here.

Reply
 
Thread Tools Display Modes
  #1  
Old 05-19-2019, 08:03 AM
td in nc td in nc is offline
Registered User
Location: NC
 
Join Date: Jun 2015
Posts: 22
Mein Auto: Hopefully Z4
Valve Cover Bolts

I have a leak in my 2003 z4 2.5 valve cover gasket. I plan on replacing it my self as there are many good threads and videos on this. I am having a problem finding the bolts as they are "one time use" When I do a search I find bolts for 2006 or newer, will these fit my car or where can I find the right bold (I cannot find the part number)

Also if any one has a suggestion on a kit or store to buy from it would be appreciated.

Thanks
Tom
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 05-19-2019, 08:20 AM
Doug Huffman's Avatar
Doug Huffman Doug Huffman is offline
Nuclear engineer
Location: Washington Island, Wisconsin, thru Death's Door
 
Join Date: Apr 2015
Posts: 13,158
Mein Auto: CPO2012 X5 35d M57(E70)
Part numbers

http://www.realoem.com/bmw/enUS/show...diagId=11_2169
__________________
Scepticism and Animal Faith (1923)
Scepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness.
(The Works of George Santayana p. 65)

Eschew eristical argumentation. I am responsible for what I write, not for your understanding of it.
Reply With Quote
  #3  
Old 05-19-2019, 12:25 PM
dc_wright's Avatar
dc_wright dc_wright is offline
bimmerfest Supporting Member
Location: Orlando, Florida
 
Join Date: Nov 2007
Posts: 12,576
Send a message via ICQ to dc_wright
Mein Auto: '06 Z4 3.0si, '11 128CiC
It's only the aluminum torque to yield bolts on the N52 engine used in 2006 and later models that are one time use.
The steel studs on your M54 engine are reusable. You do need to be careful about overtightening them and snapping them off. Should that happen, here's the info on replacements.

http://bmwfans.info/parts-catalog/E8...er_head_cover/

Quote:
Originally Posted by Doug Huffman View Post
That's info for cylinder head bolts that you provided. He was looking for valve cover info.
__________________
2006 Z4 3.0si Sport Package (But I'll still hang with my "homies" in the E36 forum)

Last edited by dc_wright; 05-19-2019 at 12:28 PM.
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old 05-19-2019, 03:28 PM
td in nc td in nc is offline
Registered User
Location: NC
 
Join Date: Jun 2015
Posts: 22
Mein Auto: Hopefully Z4
Thanks for the info - I hope I do not need extract broken bolts - fingers crossed. I am going to replace the plugs while I am there - is there anything else I should do while I am doing this?
Tom
Reply With Quote
  #5  
Old 05-20-2019, 09:26 AM
francophile francophile is online now
Registered User
Location: West Palm Beach Florida
 
Join Date: Sep 2013
Posts: 69
Mein Auto: 2006 Z4
Yes...do the Vanos seals and the eccentric shaft gasket also. And while you are there, do the oil filter housing gasket next door. I just did all this. Took me a day, but she is sealed up nice now.
Reply With Quote
  #6  
Old 05-20-2019, 08:47 PM
Andyz4 Andyz4 is offline
Officially Welcomed to the 'Fest
Location: Orlando, FL
 
Join Date: Mar 2018
Posts: 282
Mein Auto: 2006 Z4 3.0si
Quote:
Originally Posted by francophile View Post
Yes...do the Vanos seals and the eccentric shaft gasket also. And while you are there, do the oil filter housing gasket next door. I just did all this. Took me a day, but she is sealed up nice now.
Second that suggestion on the oil filter housing gasket since it is likely the same age as vcg. You may never notice it leaking until you lose your alternator (ask how I know..)
Reply With Quote
  #7  
Old 05-20-2019, 08:50 PM
dc_wright's Avatar
dc_wright dc_wright is offline
bimmerfest Supporting Member
Location: Orlando, Florida
 
Join Date: Nov 2007
Posts: 12,576
Send a message via ICQ to dc_wright
Mein Auto: '06 Z4 3.0si, '11 128CiC
Quote:
Originally Posted by td in nc View Post
Thanks for the info - I hope I do not need extract broken bolts - fingers crossed. I am going to replace the plugs while I am there - is there anything else I should do while I am doing this?
Tom
Just don't gorilla torque them putting the valve cover back on and you'll be fine. Definitely replace the spark plugs while you're in there, and the plug boots also.
Depending on your mileage you might think about doing the vanos, but that's a more advanced DIY than the VCG.

Quote:
Originally Posted by francophile View Post
Yes...do the Vanos seals and the eccentric shaft gasket also. And while you are there, do the oil filter housing gasket next door. I just did all this. Took me a day, but she is sealed up nice now.
It's a 2003 with the M54 engine. There's no eccentric shaft so no sensor gasket to worry about.
__________________
2006 Z4 3.0si Sport Package (But I'll still hang with my "homies" in the E36 forum)

Last edited by dc_wright; 05-20-2019 at 08:51 PM.
Reply With Quote
  #8  
Old 05-24-2019, 07:17 AM
td in nc td in nc is offline
Registered User
Location: NC
 
Join Date: Jun 2015
Posts: 22
Mein Auto: Hopefully Z4
I got the valve cover off and changed the plugs. I did break the vc exhaust hose. Ordered a new hose looks like a PITA to get at the lower connection. Also have the stuff do the VANOS. I do not have any signs of issues and wondering after reading the threads on removal (cutting bolt thread, jacking engine or pry bar on frontengine cross frame). I am really considering not doing the VANOS, concerned I my end up breaking some other parts. Car has 85k
Reply With Quote
  #9  
Old 10-21-2019, 12:02 PM
Gregory_tolson Gregory_tolson is offline
Registered User
 
Join Date: Oct 2019
Posts: 9
Mein Auto:
Quote:
Originally Posted by td in nc View Post
I got the valve cover off and changed the plugs. I did break the vc exhaust hose. Ordered a new hose looks like a PITA to get at the lower connection. Also have the stuff do the VANOS. I do not have any signs of issues and wondering after reading the threads on removal (cutting bolt thread, jacking engine or pry bar on frontengine cross frame). I am really considering not doing the VANOS, concerned I my end up breaking some other parts. Car has 85k
I purchased the valve cover gasket and bolt seals about a month ago, noticed oil leaking on the exhaust. I plan on doing this job between now and next spring season. I also read about the VANOS seals. I think i will purchase those and attempt to do it, it does require lifting the engine a bit off the engine mounts. Though if i'm going that far i probably should change the thermostat and water pump and the belts. And my oil pan gasket is leaking which requires jacking the engine off of the mounts so i can remove the subframe . So much to do to this car lol.

Anyway, how did it go doing the valve cover gasket? Were you okay reusing the bolts? I did not purchase any new ones either.
Reply With Quote
Reply

See More Related BMW Stories


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > Z Series > E85 / E86 Z4 (2003-2008)
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
N62/E65/E66 Valve Stem Seals Replacement, Valve Cover and Timing Chain Case Gasket Knight's Master Tech 7 Series DIY 21 04-23-2018 09:32 PM
DIY - E65/E66 - Valve cover gasket (driver side) flash_n 7 Series DIY 28 07-08-2017 11:41 PM
Putting timing covers after a retime m62TU berkeleydojah E39 (1997 - 2003) 6 04-04-2017 11:15 PM
Do the valve cover gasket yourself they said... event3horizon E90/E91/E92/E93 (2006 - 2013) 5 07-11-2016 09:17 AM
Valve Stem Seals, Valve Cover and Timing Chain Case Gasket Replaced (Chicago Area) Knight's Master Tech 7 Series - E65 / E66 (2002 - 2008) 9 08-28-2015 04:50 AM


All times are GMT -7. The time now is 03:04 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
© 2001- VerticalScope Inc. All rights reserved.