
S-59
03-E2B SERIES, WSM
DIESEL ENGINE
Piston Ring Gap
1. Insert the piston ring into the lower part of the liner (the least worn
out part) with the piston.
2. Measure the ring gap with a feeler gauge.
3. If the gap exceeds the allowable limit, replace the ring.
W1032246
Clearance between Piston Ring and Groove
1. Clean the rings and the ring grooves, and install each ring in its
groove.
2. Measure the clearance between the ring and the groove with a
feeler gauge or depth gauge.
3. If the clearance exceeds the allowable limit, replace the piston
ring.
4. If the clearance still exceeds the allowable limit with new ring,
replace the piston.
[D1403/D1503/D1703/V1903/V2203/F2803-E2B]
[V2003-TE2B]
W1032489
Top ring
Factory spec.
0.30 to 0.45 mm
0.0118 to 0.0177 in.
Allowable limit
1.25 mm
0.0492 in.
Second ring
Factory spec.
0.30 to 0.45 mm
0.0118 to 0.0177 in.
Allowable limit
1.25 mm
0.0492 in.
Oil ring
Factory spec.
0.25 to 0.45 mm
0.0098 to 0.0177 in.
Allowable limit
1.25 mm
0.0492 in.
Second ring
Factory spec.
0.093 to 0.120 mm
0.0037 to 0.0047 in.
Allowable limit
0.20 mm
0.0079 in.
Oil ring
Factory spec.
0.020 to 0.052 mm
0.0008 to 0.0020 in.
Allowable limit
0.15 mm
0.0059 in.
Second ring
Factory spec.
0.093 to 0.123 mm
0.0037 to 0.0048 in.
Allowable limit
0.20 mm
0.0079 in.
Oil ring
Factory spec.
0.020 to 0.052 mm
0.0008 to 0.0020 in.
Allowable limit
0.15 mm
0.0059 in.
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