Cub Cadet Challenger Series Service Manual page 116

1. Inspect
Oil pump drive gear(1)
•
Oil pump driven gear(2)
•
Look for cracks, wear or damage.
Replace if necessary.
Balancer drive gear(1)
•
Balancer driven gear(2)
•
Look for damage or wear, if it is
necessary to replace either one
replace them both as a set.
Timing chain
•
Timing chain guides
•
Look for cracks, stiffness in links
if necessary replace the timing
Chain and camshaft sprocket as
a set.
Engine
2. Install
•
•
•
•
•
Note:
Align the punch mark (a) on the
balancer drive gear with the keyway
slot in (b).
•
Note:
Align the punch mark (a) on the
balancer drive gear with the punch
mark (b) on the balancer driven gear.
•
•
Note:
Use an aluminum plate between the
gears to hold them while torque is
applied. Apply molybdenum disulfide
grease to the threads of the nut.
4‐20
Pins
Springs
Balancer drive gear
(on the buffer boss)
Plate
Cir clip
Balancer driven gear
Lock washer(new)
Balance driven gear nut
110 Nm or 81 ft lbs