ZPOST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   ZPOST > BMW Z4 Technical Talk > Engine, Exhaust, Drivetrain Modifications
  TireRack

SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS!
Post Reply
 
Thread Tools Search this Thread
      08-02-2023, 07:54 PM   #1
MVRS
New Member
MVRS's Avatar
No_Country
5
Rep
20
Posts

Drives: BMW Z4 E86 3.0si
Join Date: Mar 2018
Location: Gulfport

iTrader: (0)

Valve Cover bolt stripped...

Long story short, while cleaning the engine I noticed some oil seeping around 2 bolts of my valve cover. Thinking they were loose I tried tightening one and over did it, now the bolt is spinning freely . Definitely killed the mood for the day and major lesson learned...

Just wanted to know if anyone had experience fixing this sort of problem?
Appreciate 0
      08-03-2023, 05:51 AM   #2
grannyknot
Captain
grannyknot's Avatar
911
Rep
744
Posts

Drives: 2008 Z4M coupe
Join Date: Oct 2021
Location: toronto

iTrader: (0)

I've run into a few times on used cars I've picked up over the years, if you want a simple quick fix then a Helicoil will do the job, if you want to fix it permanently then Timesert is the way to go. https://www.timesert.com/
__________________
2008 E86 M coupe
Appreciate 1
MVRS4.50
      08-03-2023, 08:47 AM   #3
3002 tii
Lieutenant General
3002 tii's Avatar
United_States
2169
Rep
12,443
Posts

Drives: Z4 M, 550i, X3
Join Date: Apr 2008
Location: CT

iTrader: (96)

Garage List
F10 550i  [9.30]
E85 Z4 M  [9.56]
E86 Z4 M  [10.00]
F25 X3 xDrive35i  [10.00]
I01 i3 REx (Retired)  [7.00]
E82 135is (Retired)  [9.46]
E90 328i xDrive (Re ...  [10.00]
E86 Z4 3.0si (Retired)  [9.15]
Echo the above, I’ve used helicoil before and they work fine. Just to be clear, I get the thread are stripped but did the head snap off or are you at least able to pull the bolt out?
__________________
Follow for latest mods
Appreciate 1
MVRS4.50
      08-03-2023, 09:55 AM   #4
MVRS
New Member
MVRS's Avatar
No_Country
5
Rep
20
Posts

Drives: BMW Z4 E86 3.0si
Join Date: Mar 2018
Location: Gulfport

iTrader: (0)

Quote:
Originally Posted by grannyknot View Post
I've run into a few times on used cars I've picked up over the years, if you want a simple quick fix then a Helicoil will do the job, if you want to fix it permanently then Timesert is the way to go. https://www.timesert.com/
Okay perfect, I seen some posts from the e90 forum about helicoils and it seemed like the way to go. I just wanted to ask fellow z4 owners. Appreciate the quick reply.
Appreciate 0
      08-03-2023, 10:02 AM   #5
MVRS
New Member
MVRS's Avatar
No_Country
5
Rep
20
Posts

Drives: BMW Z4 E86 3.0si
Join Date: Mar 2018
Location: Gulfport

iTrader: (0)

Quote:
Originally Posted by 3002 tii View Post
Echo the above, Iíve used helicoil before and they work fine. Just to be clear, I get the thread are stripped but did the head snap off or are you at least able to pull the bolt out?
The bolt is still intact, I am able to bring it up, but not fully out. Do you remember the size or specs of the helicoil you used?
Attached Images
 
Appreciate 0
      08-03-2023, 12:50 PM   #6
3002 tii
Lieutenant General
3002 tii's Avatar
United_States
2169
Rep
12,443
Posts

Drives: Z4 M, 550i, X3
Join Date: Apr 2008
Location: CT

iTrader: (96)

Garage List
F10 550i  [9.30]
E85 Z4 M  [9.56]
E86 Z4 M  [10.00]
F25 X3 xDrive35i  [10.00]
I01 i3 REx (Retired)  [7.00]
E82 135is (Retired)  [9.46]
E90 328i xDrive (Re ...  [10.00]
E86 Z4 3.0si (Retired)  [9.15]
Quote:
Originally Posted by MVRS View Post
The bolt is still intact, I am able to bring it up, but not fully out. Do you remember the size or specs of the helicoil you used?
Sorry I shouldíve clarified Iíve used before in other scenarios but not the n52 vcg specifically. But I do know this pretty common so Iím sure between zpost and e90post (na section), someone can definitely chime in.

Quick search on zpost:
https://www.zpost.com/forums/showthread.php?t=1908085
__________________
Follow for latest mods
Appreciate 1
MVRS4.50
      08-03-2023, 01:13 PM   #7
MVRS
New Member
MVRS's Avatar
No_Country
5
Rep
20
Posts

Drives: BMW Z4 E86 3.0si
Join Date: Mar 2018
Location: Gulfport

iTrader: (0)

Quote:
Originally Posted by 3002 tii View Post
Sorry I shouldíve clarified Iíve used before in other scenarios but not the n52 vcg specifically. But I do know this pretty common so Iím sure between zpost and e90post (na section), someone can definitely chime in.

Quick search on zpost:
https://www.zpost.com/forums/showthread.php?t=1908085
Okay, definitely will give this a look. You and grannyknotís advice calmed the nerves a bit haha.
Really appreciate the help!
Appreciate 1
      08-04-2023, 09:30 AM   #8
86Zed
Get off my lawn
86Zed's Avatar
United_States
913
Rep
1,128
Posts

Drives: 6MT
Join Date: Sep 2015
Location: USA

iTrader: (7)

Garage List
Quote:
Originally Posted by MVRS View Post
The bolt is still intact, I am able to bring it up, but not fully out. Do you remember the size or specs of the helicoil you used?
Is the bolt seized or just spinning freely (galled / stripped) in that spot? Should be able to apply some tension or move it with a pair of vice grip pliers?
Appreciate 0
      08-04-2023, 11:03 AM   #9
MVRS
New Member
MVRS's Avatar
No_Country
5
Rep
20
Posts

Drives: BMW Z4 E86 3.0si
Join Date: Mar 2018
Location: Gulfport

iTrader: (0)

Quote:
Originally Posted by 86Zed View Post
Is the bolt seized or just spinning freely (galled / stripped) in that spot? Should be able to apply some tension or move it with a pair of vice grip pliers?
Spinning freely. It stripped the hole because I see some of the aluminum shavings came off the bolt. Ima try your recommendation of the pliers over the weekend. Seems like if I can get that out, it should be easy to apply the helicoil/time sert without removing the whole cover.
Appreciate 0
Post 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



All times are GMT -5. The time now is 04:02 PM.




zpost
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.
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