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Old 10-26-2017, 09:19 AM   #1
Bmjpv
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M3 head retorque spec ?

Iím ready to install my cyl head this weekend, 88í M3 ,stock 2.3 . I had a pie shaped burn on(1) #1 cyl ,that I replaced . Iíve got the torque angle tool & have done this awhile back on another product. Canít find torques or how to on utube, any go to sites or info on this install ? Thanks
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Old 10-26-2017, 09:41 AM   #2
ForcedFirebird
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Name:  e30m3 cyl head torque.jpg
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Old 10-27-2017, 04:46 PM   #3
Bmjpv
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M3 torque spects

Thank you for that I that info. What is torque ## for those Allen cam tower bolts , angle torque as well ? Where Is all this info w/pics on M3 at ? Thanks ,Joe
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Old 10-27-2017, 04:51 PM   #4
Bmjpv
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M3 head torque spects

That pic of the head & torque , was it in the factory shop Manual ? I had that ringed book about 10 years ago ! What was I thinking to have sold it
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Old 10-27-2017, 06:04 PM   #5
ForcedFirebird
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I have complied tons of data on them over the last decade or so. I have a small independent shop that ~90% of the clientele is e30.

Didn't find anything specific on the cam bolts, it just references the generic BMW TQ values based on thread diameter and length.
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Old 10-27-2017, 07:12 PM   #6
Bmjpv
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Cam tower Allen bolts

No numbers from them ? Breaking it down it felt like 30-35lbs . Are these angle torqued too , does not seem high enough What ## do you use on an assembled motor . Still donít know why I sold my shop manual ? Thanks again for you help
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Old 11-01-2017, 08:57 PM   #7
Bmwdayz
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For bolting the cam tray to the head

7mm bolts, 15 Nm (11 ft lbs.)
8mm nuts, 21 Nm (15 ft lbs.)
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Old 11-01-2017, 11:51 PM   #8
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Hi
50nm,80nm and then wait for 15 minutes and final torque to 100nm, does not require retorting after engine run.

Kindly supplied buy top guy Pierre.
http://m3guru.bmwe30m3.net/wp-conten...ine_img_52.jpg

http://m3guru.bmwe30m3.net

Last edited by NZM3; 11-01-2017 at 11:56 PM.
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Old 01-23-2018, 04:17 PM   #9
Bmjpv
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S14 head toques

Thanks guys for the info !
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Old 01-24-2018, 06:56 AM   #10
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Quote:
Originally Posted by NZM3 View Post
does not require retorting after engine run.
I always double check head bolts that are not TTY after a few heat cycles. TTY bolts that stretch keep the head pulled in as the gasket compresses. A bolt that goes to a TQ value only will lose clamping force as the gasket compresses.
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