Engine Disassembly and Assembly
7.
Install push rods (6). Make sure they are installed
in their original locations. Be sure the push rods are in
position in the valve lifters.
8.
Loosen the adjusting screws on the rocker arms for
valve clearance. This will prevent a bend valve or push
rod during installation of the rocker shaft assembly.
9.
Install a new O-ring seal in the rear rocker arm
support bracket.
10.
Put 2P2506 Thread Lubricant on all of the rocker
shaft bolts except the one that goes through the rear
rocker arm support bracket.
11.
Put rocker shaft assembly (7) in position on the
cylinder head assembly. Make sure the dowels in the
support brackets are in the dowel holes in the cylinder
head assembly and the rocker arms are engaged with
the push rods. Install the bolts that hold the rocker shaft
assembly until they are finger tight.
12.
Hand tighten the large size cylinder head and rocker
shaft bolts in the numbered sequence shown for each
engine as follows:
a.
Tighten the bolts in the numbered sequence to a
torque of 156 Nom (115 Ib. ft. ).
b.
Tighten the bolts in the numbered sequence to a
torque of 250 + 17 N-m (185 + 13 lb. ft. ).
c.
Tighten the bolts in the numbered sequence again
to a torque of 250 + 17 N*m (185 ± 13 Ib. ft. ).
13. Hand tighten the small size cylinder head bolts, in
the lettered sequence shown for each engine to a torque
of 43 + 7 Nom (32 + 5 Ib. ft. ).
14. See Valve Clearance in Testing And Adjusting, and
make an adjustment to the valves. The intake valves
must have a clearance of 0. 38 mm (. 015 in. ). The
exhaust valves must have a clearance of 0. 64 mm (.
025 in. ).
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