Kubota D1703-M - Piston Ring Gap

S-88
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG 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
Top ring
Factory
spec.
D1503-M
V2003-M
V2403-M-T
D1803-M-DI
V2403-M-DI
V2403-M-DI-T
V2003-M-BG
V2003-M-T-BG
0.20 to 0.35 mm
0.0079 to 0.013 in.
D1703-M
D1803-M
V2203-M
V2403-M
D1703-M-BG
V2203-M-BG
V2403-M-BG
0.25 to 0.40 mm
0.0099 to 0.015 in.
Allowable limit
1.25 mm
0.0492 in.
Second ring
Factory
spec.
D1503-M
D1703-M
D1803-M
V2203-M
V2403-M
D1803-M-DI
V2403-M-DI
D1703-M-BG
V2003-M-BG
V2203-M-BG
V2403-M-BG
0.30 to 0.45 mm
0.012 to 0.017 in.
V2003-M
V2403-M-T
V2403-M-DI-T
V2003-M-T-BG
0.40 to 0.55 mm
0.016 to 0.021 in.
Allowable limit
1.25 mm
0.0492 in.
Oil ring
Factory
spec.
D1503-M
D1703-M
D1803-M
V2003-M
V2203-M
V2403-M
V2403-M-T
V2403-M-DI-T
D1703-M-BG
V2003-M-BG
V2003-M-T-BG
V2203-M-BG
V2403-M-BG
0.25 to 0.45 mm
0.0099 to 0.017 in.
D1803-M-DI
V2403-M-DI
0.20 to 0.40 mm
0.0079 to 0.015 in.
Allowable limit
1.25 mm
0.0492 in.
KiSC issued 07, 2008 A