Crankshaft, Engine

CRANKSHAFT SIDE CLEARANCE





^ Using a dial gauge, measure the clearance between the thrust bearings and the crankshaft arm when the crankshaft is moved fully forward or backward.
Standard: 0.10 - 0.26 mm (0.0039 - 0.0102 inch)
Limit: 0.30 mm (0.0118 inch)
^ If the measured value exceeds the limit, replace the thrust bearings, and measure again. If it still exceeds the limit, replace the crankshaft.

OUTER DIAMETER OF CRANKSHAFT MAIN JOURNAL





Measure outer diameter of crankshaft main journals Dm.
Standard Dm: 54.955 - 54.979 mm (2.1636 - 2.1645 inch)

OUTER DIAMETER OF CRANKSHAFT PIN JOURNAL





Measure outer diameter of crankshaft pin journals.
Standard Dp: 44.956 - 44.974 mm (1.7699 - 1.7706 inch)

OUT-OF-ROUND AND TAPER OF CRANKSHAFT





^ Using a micrometer, measure the dimensions at four different points shown in the figure on each journal and pin.
^ Out-of-round is indicated by the difference in dimensions between X and Y at A and B.
^ Taper is indicated by the difference in dimension between A and B at X and Y.
Limit Out-of-round (X - Y): 0.005 mm (0.0002 inch)
Taper (A - B): 0.005 mm (0.0002 inch)

CRANKSHAFT RUNOUT





^ Place a V-block on a precise flat table to support the journals on both ends of the crankshaft.
^ Place a dial gauge straight up on the No. 3 journal.
^ While rotating the crankshaft, read the movement of the pointer on the dial gauge, the total indicator reading.
Limit: 0.05 mm (0.002 inch)

Part 1:

Part 2:

CYLINDER BLOCK





CRANKSHAFT