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Torque specs for non strech m12 metric allen for m104
I replaced the stretch bolts for non stretch metric m12 allens on my m104. After some thought, I dont think it would be wise to use the same torque specs for the stretch bolts that call for 55 N-m followed by a 2 additional 90 degree turns.
After some reading of various other engines, I have came to the conclusion of a reasonable figure of 70ft lbs followed by an aditional 10ft lbs after the engine has been cycled for 500 miles. but this is total guess work!
Does anyone here have a torque figure that can calculate the difference in head bolt torque between OEM stretch bolts and aftermarket non stretch?
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