3000GT AWD V6-2972cc 3.0L DOHC Turbo (1991)
When there is wear, cracks, or other damage to the ring gear teeth replace the ring gear by the following procedure. Check the starter motor pinion.
Ring gear replacement procedure:
1. Tap around the ring gear to loosen and remove it from the flywheel. The ring gear cannot be removed while it is hot.
2. Heat the ring gear to 300°C (572°F) and install it into the flywheel.
CRANKSHAFT
Inspect out-of-roundness and taper of crankshaft journal and pin.
Limit:
Out-of-roundness of journal and pin: 0.003 mm (.00012 in.)
Taper of journal and pin: 0.005 mm (.00020 in.)
OIL CLEARANCE MEASUREMENT
1. To check the oil clearance, measure the outside diameter of the crankshaft journal and the crank pin and the inside diameter of the bearing. The
clearance can be obtained by calculating the difference between the measured outside and inside diameters.
Standard value: 0.019 - 0.044 mm (.0007 - .0017 in.)
Limit: 0.1 mm (.004 in.)
2. If the oil clearance exceeds the limit replace the bearing, and crankshaft if necessary.
PLASTIGAGE METHOD
Plastigage may be used to measure the clearance.
1. Remove oil and grease and any other dirt from bearings and journals.
