TM 5-3825-226-24
CYLINDER HEAD
(1)
Put clean engine oil on bolt threads and tighten bolts according
to the following HEAD BOLT CHART:
HEAD BOLT CHART
Tightening Procedure
Step 1. Tighten bolts 1 thru 18 in
60 ± 10 lb.
ft.
number sequence to:
(80 ± 14 N
m)
Step 2. Tighten bolts 1 thru 18 in
110 ± 5 lb.
ft.
number sequence to:
(150 ± 7 N
m)
Step 3. Again tighten bolts 1 thru
18
110 ± 5 lb.
ft.
in number sequence to:
(150 ± 7 N
m)
Torque for head bolts 19 thru 22
32 ± 5 lb. ft.
(tighten in number sequence to)
(43 ± 7 N m)
(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)
1-15