Inspection

INSPECTION
1. Inspect timing chain and timing gear.





(a) Measure the length with the chain fully stretched.
Maximum chain length:
No. 1: 146.6 mm (5.772 inch) at 16 links.
No. 2: 140.5 mm (5.531 inch) at 18 links.
If the length is greater than maximum, replace the chain.

NOTE: Make the same measurements at 3 or more places selected at random.

(b) Wrap the chain around the timing gear.





(c) Using vernier calipers, measure the timing gear diameter with the chain.

CAUTION: Vernier calipers must contact the chain rollers for measuring.

Minimum gear diameter (w/chain):
Crankshaft timing gear for No. 1 timing chain: 59.4 mm (2.339 inch)
Crankshaft timing gear for No. 2 timing chain: 69.9 mm (2.752 inch)
Camshaft timing gear: 113.8 mm (4.480 inch)
Idle gear: 57.0 mm (2.244 inch)
If the diameter is less than minimum, replace the chain and gear.





2. Inspect chain damper and slipper.
Measure the damper and slipper and damper wears.
Maximum wear: 1.0 mm (0.039 inch)
If the wear is greater than maximum, replace the damper and/or slipper.





3. Inspect idle gear.
Check that the idle gear operation is not rough or noisy.
If necessary, replace the idle gear.