2
2.19
13. Lift up on the air box and rotate it towards the left
side of the vehicle. Open the wire harness retainer
and remove the harness. Set the airbox assembly
aside.
14. Thoroughly clean the area around the valve cover.
Take care not to allow any debris to get into the
throttle body.
15. Remove the push rivets retaining the right-hand
portion of the rear cab to gain access to the bolts
retaining the upper right-hand frame support.
16. Remove the 4 bolts retaining the upper right-hand
frame support. Pull the support forward and down to
remove it from the vehicle.
17. Remove the 6 valve cover bolts
r
and remove the
valve cover
t
from the engine.
18. Remove PVT cover so the engine can be rotated
(see “Drive Belt Removal” procedure within this
chapter).
MAG
ii
& PTO
oo
ADJUSTMENT PROCEDURE
19. Turn the drive clutch counter-clockwise until the cam
sprocket is in the MAG adjustment position (both
marks parallel with the valve cover sealing surface)..
20.
NOTE
The exhaust rocker arm moves both exhaust valves.
Ensure you do not rely on the play up and down of the
rocker after adjusting one exhaust valve.
Loosen the jam nut
a
and turn the lash adjuster
s
in until the rocker arm bearing
d
lightly touches the
valve
f
and you feel a slight drag when spinning the
rocker arm bearing with your fingers.
MEASUREMENT
Intake / Exhaust Valve Clearance:
0.000″ (0.00 mm)
21. Hold the lash adjuster and torque the jam nut using a
torque wrench with a 10 mm crow’s foot adaptor.
Torque the rocker jam nut to specification.
TORQUE
Rocker Jam Nut:
80 in-lb (9 Nm)
MAINTENANCE
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