I’m ready to install my cyl head this weekend, 88’ M3 ,stock 2.3 . I had a pie shaped burn on(1) #1 cyl ,that I replaced . I’ve got the torque angle tool & have done this awhile back on another product. Can’t find torques or how to on utube, any go to sites or info on this install ? Thanks
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M3 head retorque spec ?
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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.
Last edited by NZM3; 11-01-2017, 11:56 PM.
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Originally posted by NZM3 View Postdoes not require retorting after engine run.
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Originally posted by ForcedFirebird View PostI 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.
Yes I am due to do that on my S14. But not like most engines incl the M20, to retorque the head bolts the camtray needs to come off. Not a 5 min job....
Im running ARP studs and retorqued mine after waiting overnight, however I woud like to redo them now the engine has run and got hot... almost 1000kms.Pulling my hair out with all these friggin BMW's:
2000 M5 Winter beater
1984 318i Coupe 2.5 S14 going in the car below.
1988 M3 Lachssilber: I'm the second owner, currently recommissioning.
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