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Home >> Isuzu >> 1988 >> Trooper II Base, Automatic >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 2.3L 4-CYL - VIN [L] & 2.6L 4-CYL - VIN [E] >> Overhaul >> Fitting Rings

Fitting Rings

Position piston rings so that identification marks ("N", "NPR", "T" or "TOP") face upward. Ensure rings turn freely in ring grooves. Piston ring size may be identified using mark on rings. See Figure.

PISTON RING IDENTIFICATION

Application Marking/Color Code
Standard
1st Compression Ring None
2nd Compression Ring None
Oil Control Ring None
0.002" (.5 mm) Oversize
1st Compression Ring 50
2nd Compression Ring 50
Oil Control Ring Blue
0.004" (1.0 mm) Oversize
1st Compression Ring 100
2nd Compression Ring 100
Oil Control Ring Yellow
Fig 1: Piston Ring Spacing
G80072Courtesy of ISUZU MOTOR CO.