torque spec for the head bolts
 

Have new cylinder head bolts and need torque specs, all-data doesn't show me the spec.

Does this help?
http://www.318ti.org/forum/showthread.php?t=6650

it helps, but there are several different specs in there for the cylinder head, it would help to know which one is the correct one for a 98 ti. I am not sure what all the 1az, 2az, 3az, all mean.

6AZ appears to be most of the E36 engines. M4x/M5x/S5x engines.

ok thanks.

M4x head bolts a stretch bolts. Most of the I-6 head bolts are non stretch. My original bolts for the M44 head were stretch and I swapped to shaved M3 bolts that are non stretch and can be used multiple times. Be careful and since I don't know what bolts you are currently using I can't give you a torque. It would be something like 30 pounds torque then another 90 deg turn to stretch. Get me the bolt part number and I will give you the torque and stretch details.

John S

oem stretch victor reinz part number GS33460 so I would think 30 nm torque then another 90 deg turn to stretch, thanks.

are we sure about these torque specs, first of all is it 30nm or 30 lbs? doesn't seem like much either way?, i got everything back together with new rings and and have coolant leaking from the head gasket, and no compression on cylinders 1, 2 and 4, and 45psi on 3. Cylinder head was milled, timing marks all align, I don't believe it's a timing issue.

mitchell says 30nm then 90 degrees then another 90 degrees, is this correct? if so i am still off by the last 90 degrees

its 30nm then 90 degrees then 90 degrees again per mitchel and bmw.