10.14
Section 10
Reassembly
3. Rotate the crankshaft to establish Top Dead
Center (TDC) on the compression stroke. The
keyway should be aligned with the No. 1
cylinder.
Figure 10-55. Using Spanner Wrench to Lift Rocker
Arm Over Push Rod.
8. Rotate the crankshaft to check for free operation
of the valve train. Check the clearance between
the valve spring coils at full lift. Minimum
allowable clearance is
0.25 mm (0.010 in.)
.
Install Valve Covers
1. Make sure the sealing surfaces are clean and free
of any nicks or burrs.
2. Install and properly seat the seal onto each of the
valve covers. See Figure 10-56.
Figure 10-53. Assembling Rocker Arms and Pivots.
4. Torque the hex flange screws to
14.6 N·m
(130 in. lb.)
. See Figure 10-54.
Figure 10-54. Torquing Rocker Arm Screws.
5. If push rods were not already seated, use a
spanner wrench or rocker arm lifting tool (see
Section 2), to lift the rocker arms and position the
push rods underneath. See Figure 10-55.
6. From the PTO end, rotate the crankshaft 270°
(3/4 turn)
counterclockwise
and align the
crankshaft keyway with the No. 2 cylinder. This
now puts the No. 2 cylinder at TDC on the
compression stroke.
7. Repeat steps 1-5 for the remaining cylinder. Do
not interchange parts from the cylinder heads.
Figure 10-56. Installing Seal on Valve Cover.
3. Install the valve covers on the same side as they
were originally installed.
4. Install a new grommet on each valve cover
mounting screw. Start each screw into the hole.
5. Check the position of each cover and seal, then
torque each screw to
7.9 N·m (70 in. lb.)
. See
Figure 10-57.
Seal
Rocker Arms
Screws
Pivots
