AR01.30-P-5800-07B Tightening Instructions For Cylinder Head Bolts

AR01.30-P-5800-07B Tightening instructions for cylinder head bolts

Cylinder head:

Special Tools:

Tightening pattern/bolt assignment Left and right cylinder head M 112:

Tightening pattern/bolt assignment

Left and right cylinder head M 112
1-8 Collar bolt M11
a Combination bolts M8x50 (to timing case cover)
b Combination bolts M8x30 (to timing case cover)

Tightening instructions for left and right cylinder heads M 112
Use wrench bit to tighten cylinder head bolts.

Observe sequence, per the tightening pattern.

If the tightening torque is exceeded on a cylinder head bolt, unscrew the cylinder head bolt, inspect shank length of the cylinder head bolt in question (replace bolt if necessary) and tighten again fully, beginning with stage 1.

Cylinder head bolts must not be retightened.

Tightening diagram/bolt assignment Left and right cylinder head M 113:

1 to 10 Collar bolt M11
a Combination bolts M8x50 (to timing case cover)
b Combination bolts M8x30 (to timing case cover)

Tightening instructions for left and right cylinder heads M 113
Use wrench bit to tighten cylinder head bolts.

Observe sequence, per the tightening pattern.

If the tightening torque is exceeded on a cylinder head bolt, unscrew the cylinder head bolt, inspect shank length of the cylinder head bolt in question (replace bolt if necessary) and tighten again fully, beginning with stage 1.
Cylinder head bolts must not be retightened.