Piston Ring, Engine

PISTON RING END GAP






Compression Ring End Gap:
1st ring
Standard 0.300 mm - 0.400 mm (0.0118 inch - 0.0157 inch)
Limit 1.0 mm (0.0394 inch)

2nd ring
Standard 0.450 mm - 0.600 mm (0.0177 inch - 0.0236 inch)
Limit 1.2 mm (0.0472 inch)

Oil Ring End Gap:
Standard 0.150 mm - 0.450 mm (0.0059 inch - 0.0177 inch)
Limit 1.05 mm (0.0413 inch)


PISTON RING GROOVE CLEARANCE






Measure the clearance between the piston ring groove and the piston ring with a feeler gauge. If the piston ring groove/piston ring clearance exceeds the specified limit, the piston must be replaced.

Compression Ring Clearance
Standard 0.016 mm - 0.038 mm (0.0006 inch - 0.0015 inch)
Limit 0.15mm (0.0059 inch)