X-90 (4WD) L4-1591cc 1.6L SOHC MFI (1998)
Piston Ring: Specifications
Service Specifications
Service Specifications
Piston Ring End Gap
Top Ring
Standard
0.2-0.35 mm (0.0079-0.0137 in)
Insert piston ring into cylinder bore and measure the gap
by using a thickness gauge.
Limit
0.7 mm (0.0275 in)
Second Ring
Standard
0.2-0.35 mm (0.0079-0.0137 in)
Limit
0.7 mm (0.0275 in)
Oil Ring
Standard
0.2-0.7 mm (0.0079-0.0275 in)
Limit
1.7 mm (0.0669 in)
Ring Groove Clearance
Top Ring
Standard
0.03-0.07 mm (0.0012-0.0027 in)
If clearance is out of specification replace piston.
Second Ring
Standard
0.02-0.06 mm (0.008-0.0023 in)