Kohler Command PRO Service Manual page 77

Install Push Rods and Rocker Arms
NOTE: Push rods should always be installed in same
position as before disassembly.
1. Note mark or tag identifying push rod as either
intake or exhaust and cylinder 1 or 2. Dip ends of
push rods in engine oil and install, making sure each
push rod ball seats in its hydraulic lifter socket.
2. Apply grease to contact surfaces of rocker arms and
rocker arm pivots. Install rocker arms and rocker arm
pivots on cylinder head 1, and start 2 screws.
3. Rotate crankshaft to establish TDC on compression
stroke. Keyway should be aligned with cylinder 1.
4. Torque screws to 15.5 N·m (137 in. lb.).
5. If push rods were not already seated, use a spanner
wrench or rocker arm lifting tool, to lift rocker arms
and position push rods underneath.
6. From PTO end, rotate crankshaft 270° (3/4 turn)
counterclockwise and align crankshaft keyway with
cylinder 2. This now puts cylinder 2 at TDC on
compression stroke.
7. Repeat steps 1-5 for remaining cylinder. Do not
interchange parts from cylinder heads.
8. Rotate crankshaft to check for free operation of
valve train. Check clearance between valve spring
coils at full lift. Minimum allowable clearance is
0.25 mm (0.010 in.).
62 690 01 Rev. J
All manuals and user guides at all-guides.com
KohlerEngines.com
Install Valve Covers
1. Make sure sealing surfaces are clean and free of
any nicks or burrs.
2. Install and properly seat seal onto each valve cover.
3. Install valve covers on same side as they were
originally installed.
4. Install a new grommet on each valve cover mounting
screw. Start each screw into hole.
5. Check position of each cover and seal, then torque
screws to 13.6 N·m (120 in. lb.).
6. Install oil fill cap onto valve cover (if equipped).
Install Spark Plugs
1. Check gap using wire feeler gauge. Adjust gap to
0.76 mm (0.03 in.).
2. Install plug into cylinder head.
3. Torque plug to 27 N·m (20 ft. lb.).
Reassembly
77