Rear Gear Train
Apply assembly lubricant, Part Number 3163087, to the rear camshaft bore.
Lubricate the camshaft lobes, journals, and thrust washer with assembly lubricant, Part Number 3163087.
Use a gear puller, Part Number ST647 or equivalent, to attach to the end of the camshaft where the camshaft gear
mounts to act as a handle. This will give proper leverage and ease installing the camshaft.
Install the camshaft. While pushing in lightly, rotate the camshaft and carefully work the camshaft through the
camshaft bushings. As each camshaft journal passes through a bushing, the camshaft will drop slightly and the
camshaft lobes will catch on the bushings. Rotating the camshaft will free the lobe from the bushing and allow the
camshaft to be installed.
Install the thrust plate.
Torque Value: 24 Nโขm[ 212 in-lb ]
NOTE: The engine can have either a mark on the crankshaft gear or a chamfered tooth.
Align the timing marks on the camshaft gear with the timing marks on the crankshaft gear and tighten the
camshaft capscrews.
NOTE: When the timing marks on the camshaft gear and crankshaft gear are aligned, the camshaft gear keyway
should be at the 12 – o’clock position. Also check to make sure that at this position, the Top Dead Center (TDC)
indicator on the vibration damper is at the 12 – o’clock position.
NOTE: If equipped with an air compressor, make sure to align the line that was scribed on the camshaft gear and
air compressor gear during the camshaft gear removal step. If this was not done, reference the air compressor
timing procedures. Refer to Procedure 012-014 in Section 12.
Rotate the camshaft so the camshaft dowel pin aligns with the slot on the camshaft gear. Install the camshaft gear
and capscrews.
Tighten the capscrews.
Torque Value: 36 Nโขm [ 27 ft-lb ]
Use a gauge, Part Number 3824564, and magnetic base, Part Number 33n399, to verify the camshaft has proper
end play and backlash.
Tighten the air compressor/accessory drive mounting fasteners. Refer to Procedure 012-014 in Section 12.
If equipped with a hydraulic pump driven off of the air compressor, install and/or tighten any of the mounting
fasteners removed. Refer to the OEM service manual.
Front Gear Train
Lubricate the camshaft lobes, journals , and thrust plate with assembly lubricant, Part Number 3163087.
Install the camshaft. While pushing in lightly, rotate the camshaft and carefully work the camshaft through the
camshaft bushings. As each camshaft journal passes through a bushing, the camshaft will drop slightly and the
camshaft lobes will catch on the bushings. Rotating the camshaft will free the lobe from the bushing and allow the
camshaft to be installed.
Before the camshaft gear engages the crankshaft gear, check the camshaft for ease of rotation. When installed
properly, the camshaft must rotate freely.
Align the timing marks as illustrated and fini sh installing the camshaft.
Install the thrust plate capscrews.
Torque Value: 24 Nโขm [ 212 in-lb]
Use gauge, Part Number 3824564, and magnetic base,
Part Number 3377399, to verify the camshaft has proper backlash and end play.
