Install Rocker Arms And Push Rods; Installing Cylinder Head Fasteners; Cylinder Head Fastener Torque Sequence; Installing Guide Plates And Rocker Arm Pivot Studs - Kohler Courage SV470 Service Manual

Section 10
Reassembly
Figure 10-40. Installing Cylinder Head Fasteners.
6. Using the torque sequence shown in Figure
10-41, torque the cylinder head screws in two
stages; initially to 20.5 N·m (180 in. lb.), and
finally to 41.0 N·m (360 in. lb.).
3
6
Figure 10-41. Cylinder Head Fastener Torque
Sequence.

Install Rocker Arms and Push Rods

NOTE: Installation and seating of the push rods into
the cam lever recesses during this sequence is
critical. Position the engine with the cylinder
head up if possible, to aid with proper
installation of the push rods and rocker arms,
and adjusting the valve lash.
1. Position the push rod guide plates on the cylinder
head with the extruded edges down over the
push rod bores. Secure by installing the rocker
arm pivot studs. Torque the studs to 13.5 N·m
(120 in. lb.). See Figure 10-42.
10.12
Washer
(Position 6)
1 5
4
2
Figure 10-42. Installing Guide Plates and Rocker
Arm Pivot Studs.
2. Apply grease to the contact surfaces of the rocker
arms and adjusting nuts and install them onto
the pivot studs.
NOTE: If being reused, push rods should
always be installed in their original
position.
3. Note the mark or tag identifying the push rod
as either intake or exhaust. Apply grease to the
ends of the push rods. Insert the push rods into
the push rod bores and seat the lower end into
the dimpled recess of the cam levers. It may be
necessary to lift or shift the lower end of the
push rod slightly, and feel that the rod seats
into the recess. Once seated, hold it in place as
you position the rocker arm. The push rod must
stay in the recess while the rocker arms are
positioned and adjusted. See Figure 10-43.
Figure 10-43. Installing Push Rods and Rocker
Arm Assemblies.