Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E70) Forum
Bimmer Tool Rental
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 09-01-2019, 07:43 PM
Member
 
Join Date: Feb 2019
Location: Usa
Posts: 13
Magnesiumnitrate is on a distinguished road
Broken valve cover bolt n52k

Welp. My torque wrench must have failed me, or I got a seriously defective bolt with my new VC.

On the plus side it’s in a fairly easy place to work. On the bad side, it’s seriously in there. I managed to get the valve cover back off and put some vice grips on it. They won’t turn it at all. Not sure if it’s friction locked at the bottom or if I cross threaded it? Not sure how that would have happened as it went in without resistance.

Either way it is seriously in there & I’m a bit lost as to what my best option is.

It’s the third or fourth bolt back from the front of the engine on the intake side.

What’s my best course of action? Left handed drill bit? Bolt extractor? I’m kind of at a loss because I was expecting the vice grips to just twist it right out.

Here’s a photo


Last edited by Magnesiumnitrate; 09-01-2019 at 09:09 PM. Reason: Added photo
Reply With Quote

Sponsored Links

  #2  
Old 09-01-2019, 07:52 PM
crystalworks's Avatar
Member
 
Join Date: Jun 2014
Location: SA, TX
Posts: 3,869
crystalworks is on a distinguished road
My N52 came with a leaking valve cover due to 2 pre-broken bolts. Easy to remove with a left handed bit. I had a bolt extractor on hand as well but did not need it. The aluminum bolts drill through extremely easily.
__________________
2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)


2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
Reply With Quote
  #3  
Old 09-01-2019, 08:18 PM
Member
 
Join Date: Feb 2019
Location: Usa
Posts: 13
Magnesiumnitrate is on a distinguished road
This is the updated plastic cover with steel bolts. Same methods?

Quote:
Originally Posted by crystalworks View Post
My N52 came with a leaking valve cover due to 2 pre-broken bolts. Easy to remove with a left handed bit. I had a bolt extractor on hand as well but did not need it. The aluminum bolts drill through extremely easily.
Reply With Quote
  #4  
Old 09-01-2019, 08:40 PM
crystalworks's Avatar
Member
 
Join Date: Jun 2014
Location: SA, TX
Posts: 3,869
crystalworks is on a distinguished road
Quote:
Originally Posted by Magnesiumnitrate View Post
This is the updated plastic cover with steel bolts. Same methods?
Nope. Mine is the magnesium cover with aluminum bolts. Yours will be more difficult. Though I would think the left handed drill bits and an extractor would still do the job.
__________________
2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)


2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
Reply With Quote
  #5  
Old 09-01-2019, 10:14 PM
Member
 
Join Date: Feb 2019
Location: Usa
Posts: 13
Magnesiumnitrate is on a distinguished road
Any reason I shouldnít just pull the fuel rail off so I can get vice grips on it at a proper 90 degree angle? Iím thinking it would turn out if I wasnít fighting the lateral play in the grips when grabbing it too down at 180 degrees.

Quote:
Originally Posted by crystalworks View Post
Nope. Mine is the magnesium cover with aluminum bolts. Yours will be more difficult. Though I would think the left handed drill bits and an extractor would still do the job.
Reply With Quote
  #6  
Old 09-01-2019, 11:19 PM
ard ard is online now
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 5,658
ard is on a distinguished road
or just clamp hard with a vicegrips going straight in- then use a wrench on the VG right at the head where it clamps the (now) stud?


Can you go back and forth? Turn in a few turns, then back out..then in... does it get easier, maybe let the threads 'unbind'?
Reply With Quote
  #7  
Old 09-02-2019, 10:35 AM
crystalworks's Avatar
Member
 
Join Date: Jun 2014
Location: SA, TX
Posts: 3,869
crystalworks is on a distinguished road
Quote:
Originally Posted by Magnesiumnitrate View Post
Any reason I shouldnít just pull the fuel rail off so I can get vice grips on it at a proper 90 degree angle? Iím thinking it would turn out if I wasnít fighting the lateral play in the grips when grabbing it too down at 180 degrees.
I would avoid removing the injectors, but you can try removing the rail itself. I don't see any penetrating oil on the bolts in the pics. Throw some at the base of the bolts.
__________________
2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)


2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
Reply With Quote
  #8  
Old 09-02-2019, 03:02 PM
Member
 
Join Date: Feb 2019
Location: Usa
Posts: 13
Magnesiumnitrate is on a distinguished road
Itís out! Honestly it wasnít too bad. I pulled the fuel rail & injectors this morning. They were pretty fouled anyways so I gave them a cleaning.

Once the fuel rail was out I had nice 90 degree access to the bolt. I had hoped my vice grips would bite and just turn it out but the fine teeth are pretty much wore out.

I taped everything off surgeon style by cutting a slit in some masking tape and putting the bolt through it, then taped a trash bag to that to cover the inside of the head.

I took a small file and gave each side 10 min or so with the file to get a flat surface to grip. Viola! Vice grips turned it right out and I was able to finger it out as soon as it unbound.

As I was working with the file I regularly used a neobydium(sp) magnet to pull metal shavings from the area.

All in, once I had a fresh mind & calm hands it only took about 20 min to get out. Could have been much worse.

Iím pretty sure my torque wrench failed me as I was at the lower end of the limits, but either way a steel bolt for sure shouldnít have snapped. I work with my hands for a living and I wasnít cranking it hard. Iím going to reuse the old bolts for reassembly.

Kinda sucks I have to wait for BMW to open their parts department tomorrow. Iím for sure going to replace these injector o rings.
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 12:33 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.