3208 INDUSTRIAL ENGINE ATTACHMENTS – Cylinder Head

HEAD BOLT LOCATION AND TIGHTENING SEQUENCE

(1) Put engine oil on bolt threads and tighten bolts according to the procedure that follows:

1. Tighten bolts 1 thru 18 in number sequence to … 60 ± 10 lb.ft.(80 ± 14 N·m)

2. Tighten bolts 1 thru 18 in number sequence to … 110 ± 5 lb.ft.(150 ± 7 N·m)

3. Again tighten bolts 1 thru 18 in number sequence to … 110 ± 5 lb.ft.(150 ± 7 N·m)

4. Tighten bolts 19 thru 22 in number sequence to … 32 ± 5 lb.ft.(43 ± 7 N·m)

SECTION A-A

(2) Holes for fuel injection nozzles.

(3) Thickness of cylinder head [measure through the fuel injection nozzle holes at each end of the cylinder head].

New … 3.785 ± .006 in.(96.14 ± 0.15 mm)

Minimum permissible thickness … 3.774 in.(95.86 mm)