Cylinder; Oil Pump - Kubota V3300-E2B Workshop Manual

V3300-E2B, V3300-T-E2B, WSM

(5) Cylinder

(6) Oil Pump

Cylinder Wear
1. Measure the I.D. of the cylinder at the six positions (see figure)
with a cylinder gauge to find the maximum and minimum I.D.'s.
2. Get the difference (Maximum wear) between the maximum and
the minimum I.D.'s.
3. If the wear exceeds the allowable limit, bore and hone to the
oversize dimension. (Refer to "Correcting Cylinder".)
4. Visually check the cylinder wall for scratches. If deep scratches
are found, the cylinder should be bored. (Refer to "Correcting
Cylinder".)
Factory spec.
Cylinder Bore I.D.
Allowable limit
(A) Top
(B) Middle
(C) Bottom (Skirt)
Correcting Cylinder (Oversize)
1. When the cylinder is worn beyond the allowable limit, bore and
hone it to the specified dimension.
Cylinder I.D. (2) Factory spec.
Maximum wear Allowable limit
Hone to 1.2 to 3.0 μm Rz
Finishing
(0.000087 to 0.00012 in. Rz) ∇∇∇.
2. Replace the piston and piston rings with oversize 0.5 mm (0.0197
in.) ones.
NOTE
• When the oversize cylinder is worn beyond the allowable
limit, replace the cylinder block with a new one.
(1) Cylinder I.D. (Before Correction)
Rotor Lobe Clearance
1. Measure the clearance between lobes of the inner rotor and the
outer rotor with a feeler gauge.
2. If the clearance exceeds the allowable limit, replace the oil pump
rotor assembly.
Factory spec.
Clearance between
inner rotor and outer
rotor
Allowable limit
S-72
DIESEL ENGINE
98.000 to 98.022 mm
3.8582 to 3.8591 in.
98.15 mm
3.8642 in.
(a) Right-angled to piston pin
(b) Piston pin direction
W1070089
98.500 to 98.522 mm
3.8780 to 3.8788 in.
98.65 mm
3.8839 in.
(2) Oversize Cylinder I.D.
W10344480
0.04 to 0.16 mm
0.0016 to 0.0063 in.
0.3 mm
0.0118 in.
W1071254
KiSC issued 06, 2006 A