Piston, Engine

PISTON RING AND GROOVE CLEARANCE





Check for clearance between the piston ring and ring groove. If it exceeds the limit, replace the ring or piston, or both.
Standard value:
Number 1: 0.03-0.07 mm (0.0012-0.0028 inch)
Number 2: 0.02-0.06 mm (0.0008-0.0024 inch)
Limit: 0.1 mm (0.003 inch)





If the ring gap is excessive, replace the piston ring.
Standard value:
Number 1: 0.15-0.30 mm (0.006-0.012 inch)
Number 2: 0.28-0.43 mm (0.011-0.017 inch)
Oil: 0.10-0.40 mm (0.003-0.015 inch)
Limit:
Number 1, Number 2: 0.8 mm (0.03 inch)
Oil: 1.0 mm (0.03 inch)

Piston outside diameter mm (in)
Standard Value: 87 (3.43)
Piston pin outside diameter mm (in)
Standard Value: 22.0 (0.87)
Piston pin press-in load N (lb) (Room temperature)
Standard Value: 7,350 - 17,200
Standard Value: (1,653 - 3,866)