INSPECTION
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If the camshaft contact surface of the rocker arm is damaged or abnormally worn, check the cam lobes for damage (page 9-12). |
Inspect the camshaft contact surface of the rocker arm for wear or damage.
Measure the rocker arm I. D.
SERVICE LIMIT: 12.05 mm (0.474 in)
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Inspect the rocker arm shaft for wear or damage. Measure the rocker arm shaft O. D.
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SERVICE LIMIT: 11.92 mm (0.469 in)
Calculate the rocker arm-to-shaft clearance. SERVICE LIMIT: 0.10 mm (0.004 in)
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Turn the outer race of the camshaft bearing with your finger.
The bearing should turn smoothly and quietly.
Also check that the bearing inner race fits tightly on the camshaft.
Replace the camshaft assembly if the bearing does not turn smoothly, quietly, or if it fits loosely on the camshaft.
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DECOMPRESSOR ASSEMBLY SPRING |
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Check the cam lobe surfaces for scoring or evidence of insufficient lubricant.
Measure the height of each cam lobe.
SERVICE LIMITS:
IN: 36.890 mm (1.4524 in)
EX: 35.063 mm (1.3804 in)
NOTE:
Check the rocker arm if the cam lobe and valve lifters are worn or damage.
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BALANCER WEIGHT |
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Check the decompressor assembly for wear or damage.
Check the balancer weight and spring for damage or fatigue.
Turn the inner race of the camshaft bearing with your finger.
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DRIVER |
The bearing should turn smoothly and quietly.
Also check that the bearing outer race fits tightly in the camshaft holder.
Remove and discard the bearing if the race does not turn smoothly, quietly, or if it fits loosely in the camshaft holder.
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ATTACHMENT/PILOT |
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Apply oil to a new bearing.
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Drive in a new bearing squarely with the marking side facing toward the inside of the camshaft holder. |
Install a new bearing into the hub using the special tools.
TOOLS:
Driver 07749-0010000
Attachment, 37 x 40 mm 07746-0010200
Pilot, 20 mm 07746-0040500
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Check the valve lifter bore scoring, scratches or damage.
Measure each valve lifter bore I. D.
SERVICE LIMIT: 26.04 mm (1.025 in)
Check the valve lifter for scoring, scratches or damage.
Measure each valve lifter O. D.
SERVICE LIMIT: 25.97 mm (1.022 in)
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24 N m (2.4 |
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(2.2 kgf-m, 161b |
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«SS* CIRCLIP DECOMPRESSOR |
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VALVE LIFTER |
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DECOMPRESSOR ARM |
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LIFTER |
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CAMSHAFT CAMSHAFT HOLDER |
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1 ROCKER ARM |
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"I 22 N m |
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ROCKER ARM SHAFT STOPPER RING |
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SNAP RING |
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INTAKE LOBES
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Apply molybdenum oil solution to the camshaft journal and lobes.
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SNAP RING |
Install the camshaft in the camshaft holder as shown.
Make sure the intake lobes are facing up when installing the camshaft to prevent damaging the intake lifter bores.
Make sure the snap Install the snap ring into the groove in the camshaft
ring is firmly seated holder. in the groove.
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DECOMPRESSOR CAM ASSEMBLY |
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Align the dowel pm Install the decompressor cam assembly.
on the
decompressor cam assembly with the pin hole in the camshaft.
Adjust the stopper plate angle as shown.
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DECOMPRESSOR ASSEMBLY ^ BOLT |
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STOPPER PLATE |
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Apply oil to the decompressor cam mounting bolt threads.
Install the decompressor cam mounting bolt.
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ROCKER ARM |
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ROCKER ARM SHAFT |
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Apply molybdenum oil solution to the rocker arm bore and valve slipper surfaces.
Install the rocker arm and rocker arm shaft into the camshaft holder.
Install a new stopper ring into the groove in the camshaft holder.
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STOPPER RING
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DECOMPRESSOR LIFTER |
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DECOMPRESSOR ARM |
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SPRING |
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SPRING END |
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Install the decompressor arm, decompressor lifter and spring.
• Align the decompressor arm and decompressor lifter as shown.
• Align the spring end and camshaft holder tab as shown.
Apply oil to the nut threads and seating surface, then tighten it to the specified torque.
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NUT |
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CIRCLIP & |
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TORQUE: 22 N m (2.2 kgf m, 16 lbf-ft)
Install a new circlip.
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CRANKSHAFT HOLE CAP |
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