Service Data

Crankshaft Timing Sprocket and Chain
Wrap the chain around the timing sprocket.
Using vernier calipers, measure the timing sprocket diameter with the chain wrapped.
Standard sprocket diameter (w/ chain) 51.72 mm (2.0362 inch)
Minimum sprocket diameter (w/ chain) 50.5 mm (1.988 inch)

NOTICE: When measuring the diameter, vernier calipers must be in contact with the chain roller.

If the diameter is less than minimum, replace the chain and crankshaft.