Kubota D1803-CR-E4 - Checking Clearance between Piston Ring and Ring Groove

2. Measure the ring gap with a feeler gauge.
NOTE
• If the
ring gap is more than the service limit,
replace the ring.
Top ring
Service speci-
fication
0.20 to 0.35 mm
0.0079 to 0.013 in.
Service limit
1.25 mm
0.0492 in.
Second ring
Service speci-
fication
D1803-CR-E4
V2403-CR-E4
0.30 to
0.45 mm
0.012 to
0.017 in.
D1803-CR-
TE4
D1803-CR-
TIE4
V2403-CR-
TE4
V2403-CR-
TE4BG
V2403-CR-
TIE4
0.40 to
0.55 mm
0.016 to
0.021 in.
Service limit
1.25 mm
0.0492 in.
Oil ring
Service speci-
fication
D1803-CR-E4
V2403-CR-E4
0.20 to
0.40 mm
0.0079 to
0.015 in.
D1803-CR-
TE4
D1803-CR-
TIE4
V2403-CR-
TE4
V2403-CR-
TE4BG
V2403-CR-
TIE4
0.25 to
0.45 mm
0.0099 to
0.017 in.
Service limit
1.25 mm
0.0492 in.
7.29 Checking clearance between
piston ring and ring groove
Tools required
• Feeler gauge
1.
Clean the rings and the ring grooves, and install
each ring in its groove.
4. ENGINE
SERVICING
7. Servicing
4-176
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
KiSC issued 12, 2018 A