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6A – 102 ENGINE MECHANICAL
FLYWHEEL AND RING GEAR Flywheel 1. Inspect the flywheel friction surface for excessive wear and heat cracks. 2. Measure the flywheel friction surface depth. If the measured value is within the specified limit, the Flywheel Friction Surface Depth Q mm (in) Standard Limit 4JA1, 4JA1T, 20 (0.787) 21 (0.827) 4JB1T 14 (0.551) 15 (0.591) 4JG2T, 18 (0.708) 19 (0.748)
Flywheel Friction Surface Roughness mm (in) Less than 0.006 (0.00024)
Ring Gear Inspect the ring gear.
Ring Gear Replacement Ring Gear Removal Strike around the edges of the ring gear with a hammer
Ring Gear Installation 1. Heat the ring gear evenly with a gas burner to invite thermal expansion. °C (390°F). 2. Install the ring gear when it is sufficiently heated. The ring gear must be installed with the chamfer |