Note. Make three or more measurements on arbitrary sections of the circuit.
Pic. 2.74. Measuring the sprocket diameter with a caliper
Wrap the chain around the sprocket. Measure the diameter of the sprocket on the rollers with a caliper, as shown in Figure 2.74.
Minimum sprocket diameter:
- camshaft - 97.3 mm;
- crankshaft - 51.6 mm.
If the diameter is not as specified, replace the chain sprockets.
Check the tensioner shoe and timing chain guide for wear. The maximum wear should not exceed 1 mm.