COMPILER TECO/ATL
REG. CODE
1-5302-351
MODEL N°
50563
DATE OF ISSUE
04.90
REVISION 04
ENDORSED
DATE
15.11.99
35
TIMING BELT REMOVAL
REMOVAL: Loosen nut (1). Slide the timing belt off of the pulleys.
NOTE 1.: Timing belt refitting can be greatly simplified if the engine
is rotated until the timing marks align prior to removing the timing
belt.
NOTE 2.: Discard the timing belt after removal irrespective of
operational hours. Timing belts take a “set” during operation and
subsequent reinstallations will not allow replacement in the identical
position as prior.
IDLER PULLEY
REMOVAL: Remove nut (1) and washer (2). Remove the idler pulley
assembly from the engine.
INSPECTION: Inspect the pulley idler surface for chips, wear,
degradation, etc. Check the bearing for radial run-out and smooth
operation. Replace the bearing, pulley or assembly as required.
Components:
CRANKSHAFT TIMING PULLEY
REMOVAL: Slide pulley from the crankshaft.
INSPECTION: Clean the pulley in solvent. Dry with compressed air.
Inspect the pulley for chips, tooth profile wear and cracks. Inspect
the keyway for fretting or indications of loose operation. Inspect the
crankshaft for signs of fretting at the keyway. Inspect the key
condition. Replace components as required. Remove all rust and
deposits from the crankshaft.
INSTALLATION: Slide the clean timing pulley onto the crankshaft
aligning the keyway in the pulley with the key on the crankshaft.
NOTE: Reference mark (1) on the crankshaft timing pulley and
reference mark (2) on the oil pump housing are timing marks. When
aligned, No. 1 piston (flywheel side) is at TDC.
CAMSHAFT TIMING PULLEY
REMOVAL: Loosen and remove bolt(1) and washer(2). Slide the
camshaft pulley from the camshaft.
INSPECTION: Clean the pulley in solvent. Dry with compressed air.
Inspect the pulley for chips, tooth profile wear and cracks. Inspect
the keyway for fretting or indications of loose operation. Inspect the
seal race on the backside of the pulley for excessive grooving,
erosion or roughness. Replace as required.
INSTALLATION: Coat the seal race of the camshaft pulley with clean
engine oil. Install the camshaft pulley onto the camshaft taking care
not to damage the camshaft seal. Install the washer (2) onto the bolt
(1). Torque the camshaft retaining bolt to 80 Nm.
1 Nut 4 Bearing
2 Washer 5 Shaft/ Support
3 Pulley 6 Mounting Plate
DISASSEMBLY/REASSEMBLY
II
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