Celica ST Ltd Ed Liftback L4-1762cc 1.8L DOHC MFI (1997)
Crankshaft: Testing and Inspection
Main Journals and Crank Pins Inspection
1. Inspect main journals and crank pins.
(a)
Using a micrometer, measure the diameter of each main journal and crank pin.
Main journal diameter:
STD: 47.982 - 48.000 mm (1.8891 - 1.8898 inch)
U/S 0.25: 47.745 - 47.555 mm (1.8797 - 1.8801 inch)
Crank pin diameter:
STD: 47.988 - 48.000 mm (1.8893 - 1.8898 inch)
U/S 0.25: 47.745 - 47.555 mm (1.8797 - 1.8801 inch)
If the diameter is not as specified, check the oil clearance.
If necessary, grind or replace the crankshaft.
(b) Check each main journal and crank pin for taper and out-of-round as shown.
Maximum taper and out-of-round: 0.005 mm (0.0002 inch)
If the taper and out-of-round is greater than maximum, replace the crankshaft.
2. If necessary, grind and hone main journals and/or crank pins.
Grind and hone the main journals and/or crank pins to the finished undersized diameter (See procedure in step 1). Install new main journal and/or
crankshaft pin undersized bearings.
