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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Engine Bolt Torque Specs-Valve Cover/Head Bolts



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      11-16-2011, 07:49 PM   #1
RupertPupkin
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Question Engine Bolt Torque Specs-Valve Cover/Head Bolts

I just ordered the parts to do my valve cover gasket replacment (due to leak) and my broken head bolt (next to oil filter housing)

I have searched and read through threads, but I need a definite answer on the torque specs for these bolts.

Valve Cover Gasket Bolts: ?

Broken Head Bolt: ?

The head bolt in question is literally the same bolt as in this thread
---> http://www.e90post.com/forums/showth...ken+head+bolts

See post# 20 for the bolt in question.



Thanks in advance.
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      11-17-2011, 12:36 PM   #2
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      11-18-2011, 03:45 PM   #3
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I've searched a little deeper and found many saying the valve cover gasket bolts should be torqued to:

89 in/lb

which is

7.41666667 ft/lb
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      01-05-2012, 05:14 PM   #4
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How did the replacement go? I'm looking into doing the same repair. My VCG is leaking and I am looking for a DIY write up. When you started replacing it, did you merely need to replace the bolt, or was the gasket itself crumbling?
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      01-05-2012, 05:27 PM   #5
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Quote:
Originally Posted by jomegared View Post
How did the replacement go? I'm looking into doing the same repair. My VCG is leaking and I am looking for a DIY write up. When you started replacing it, did you merely need to replace the bolt, or was the gasket itself crumbling?
I actually haven't gotten to it yet. The holidays and work have taken up tons of my time. as far as I can tell from doing spark plugs I have no broken VGC bolts. It must be the gasket itself. I have all the parts ready to go just need to set aside time to do it.

It isn't a priority since it has no ill effects except a slow loss of oil and a burning smell from it dripping on the cats from time to time. I will post results and photos when I get around to doing the job.
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      01-05-2012, 05:36 PM   #6
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I hear ya there! Good luck on the repair. If it is not too much to ask would you possibly take some pictures? I would love to see this process. If not, no worries.
Who says burning cats are an ill effect?? lol, jk. Goodluck!
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      01-05-2012, 06:11 PM   #7
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Quote:
Originally Posted by jomegared View Post
I hear ya there! Good luck on the repair. If it is not too much to ask would you possibly take some pictures? I would love to see this process. If not, no worries.
Who says burning cats are an ill effect?? lol, jk. Goodluck!
Haha yea no doubt. Ill try to document the whole thing. Can't believe no one has made a DIy on here for the issue. I will do my best to make one.
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      01-05-2012, 10:04 PM   #8
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hope these pics can help....please read the 1st paragraph on the 1st/2nd pic!!!!!

When you say "broken head bolt"....I think thats the "cylinder head cover fastener" (5)
The valve motor bolt should be (1)....its pretty easy to DIY

let me know if you need anything else.
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Last edited by ska///235i; 01-05-2012 at 11:41 PM.
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      08-08-2013, 02:15 AM   #9
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Hey guys i really need help. Im almost pretty much done putting all 14 cylinder head cover fastener except for on by the oil filler in front of the timing chain one of the fastener thread hole was stripped due to weak thread when i was about to torque it down. Is there any way i can fix this? Help out
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      08-08-2013, 02:18 AM   #10
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I was thinking bout putting a thread inserts to the stripped thread hole. I dont know what size is the thread but the fastener was 10mm. Where can i get this kinda inserts? Any help or suggestion would greatly appreciated.
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      08-08-2013, 04:22 AM   #11
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Quote:
Originally Posted by TimskiMcMatrix View Post
I was thinking bout putting a thread inserts to the stripped thread hole. I dont know what size is the thread but the fastener was 10mm. Where can i get this kinda inserts? Any help or suggestion would greatly appreciated.
Just google the bolt size and you should come up with the correct tap, helicoil insert, and drill bit.
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      08-08-2013, 12:31 PM   #12
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Quote:
Originally Posted by jomegared View Post
I hear ya there! Good luck on the repair. If it is not too much to ask would you possibly take some pictures? I would love to see this process. If not, no worries.
Who says burning cats are an ill effect?? lol, jk. Goodluck!
There is already a DIY on this in the DIY section that covers not only VCG replacement, but replacement of the eccentric shaft sensor as well.
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      08-10-2013, 09:15 PM   #13
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Is the helicoil insert does its job? My friend ordered it for me? Has anyone done this? I was just curious and nervous bout drilling and putting the helicoil thread to the stripped thread hole
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