SECTION 4. DISASSEMBLY AND SERVICE
insert the feeler gauge into clearance between each ring
and groove’s upper or lower surface to measure the
clearance.
Standard Service limit
0.015-0.045 mm
4) PISTON RING HEIGHT
Standard Service limit
Top/Second 1.0 mm 0.9 mm
Oil ring
2.5 mm 2.37 mm
5) PISTON RING WIDTH
Standard Service limit
Top 2.3-2.5 mm 2.27 mm
Second 2.5-2.7 mm 2.44 mm
Oil ring
2.43-2.83 mm 2.37 mm
6) PISTON RING END GAP
Standard Service limit
Top/second 0.02-0.04 mm 1.0 mm
Oil ring
0.15-0.35 mm 1.0 mm
Before measuring, put piston rings correctly in the ring
grooves, then, put the piston into the cylinder. As rings are
used in a set, top ring and second ring should be replaced
together.
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