Checking Clearance Between Inner Rotor And Outer Rotor; Checking Clearance Between Outer Rotor And Pump Body - Kubota WSM 05-E4B Series Workshop Manual

4. ENGINE
2. If the cylinder wear is more than the service limit,
bore and hone it to the specified dimension.
NOTE
• If the maximum I.D. or the difference for the
oversize cylinder is more than the service
limit, replace the crankcase with a new one.
• Oversize cylinder bore I.D.
Service
specifica-
tion
Oversize cyl-
inder I.D.
Service lim-
it
Hone to 1.2 to 2.0 μmR max. (48 to 78 μin.R
Finishing
max.)
(1) Cylinder bore I.D. (Before
correction)
3. Replace the piston and piston rings with oversize
ones.
4-72
D1005- 76.500 to
E4B/ 78.619 mm
E4BG 3.0119 to 3.0125 in.
D1105- 78.500 to
E4B/ 78.519 mm
E4BG 3.0906 to 3.0912 in.
D1305-
E4B/
E4BG
V1505-
E4B/
E4BG
D1005- 76.65 mm
E4B/ 3.018 in.
E4BG
D1105-
E4B/
E4BG
D1305-
78.65 mm
E4B/
3.096 in.
E4BG
V1505-
E4B/
E4BG
(2) Cylinder bore I.D. (Oversize)
Oversize piston Service specifi-
and piston rings cation
RELATED PAGE
6.37 Checking cylinder wear on page 4-70
6.39 Checking clearance between
inner rotor and outer rotor
Tools required
• Feeler gauge
1. Measure the clearance between the lobes of the
inner rotor and the outer rotor with a feeler gauge.
NOTE
• If the clearance more than the service limit,
replace the oil pump rotor assembly.
Clearance be-
Service specifi-
tween inner rotor
cation
and outer rotor
6.40 Checking clearance between
outer rotor and pump body
Tools required
• Feeler gauge
SERVICING
6. Servicing
0.50 mm
0.020 in.
0.060 to 0.18 mm
0.0024 to 0.0071 in.
05-E4B SERIES,05-E4BG SERIES
KiSC issued 03, 2023 A