Kohler Comand Pro CH1000, Service Manual

Page: 124 / 142

10.14
Section 10
Reassembly
4. Torque the hex fl ange 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 li ft ing tool (see
Section 2), to li ft the rocker arms and position the
push rods underneath. See Figure 10-55.
Figure 10-55. Using Spanner Wrench to Lift Rocker
Arm Over Push Rod.
6. From the PTO end, rotate the cranksha ft 270°
(3/4 turn) counterclockwise and align the
cranksha ft 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.
8. Rotate the cranksha ft to check for free operation
of the valve train. Check the clearance between
the valve spring coils at full li
ft . 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.
Seal
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 13.6 N·m (120 in. lb.) . See
Figure 10-57.
Figure 10-57. Torquing Valve Cover Screw.
6. Install the oil fi ll cap onto the valve cover (if
equipped).
Install Spark Plugs
1. Use new Champion ® XC10YC (or equivalent)
spark plugs.
2. Set the gap at 0.76 mm (0.030 in.) .