Kubota V3300-E2B Workshop Manual page 124

V3300-E2B, V3300-T-E2B, WSM
Free Length and Tilt of Valve Spring
1. Measure the free length (B) with vernier calipers.
measurement is less than the allowable limit, replace it.
2. Put the spring on a surface plate, place a square on the side of
the spring, and check to see if the entire side is contact with the
square. Rotate the spring and measure the maximum (A). If the
measurement exceeds the allowable limit, replace.
3. Check the entire surface of the spring for scratches. Replace it,
if any.
Tilt (A) Allowable limit
Factory
spec.
Free length (B)
Allowable
limit
(A) Tilt
Valve Spring Setting Load
1. Place the valve spring on a tester and compress it to the same
length it is actually compressed in the engine.
2. Read the compression load on the gauge.
3. If the measurement is less than the allowable limit, replace it.
Factory
spec.
Setting load / setting
length
Allowable
limit
Oil Clearance between Rocker Arm Shaft and Bearing
1. Measure the rocker arm bearing I.D. with an inside micrometer.
2. Measure the rocker arm shaft O.D. with an outside micrometer,
and then calculate the oil clearance.
3. If the clearance exceeds the allowable limit, replace the rocker
arm and measure the oil clearance again. If it still exceeds the
allowable limit, replace also the rocker arm shaft.
Factory spec.
Oil clearance of rocker
arm shaft and bearing
Allowable limit
Rocker arm shaft O.D. Factory spec.
Rocker arm I.D. for shaft Factory spec.
S-61
DIESEL ENGINE
1.0 mm
0.039 in.
Intake 35.1 to 35.6 mm
valve 1.3819 to 1.4016 in.
Exhaust 41.7 to 42.2 mm
valve 1.6417 to 1.6614 in.
Intake 34.6 mm
valve 1.3622 in.
Exhaust 41.2 mm
valve 1.6220 in.
(B) Free length
W1063303
63.547 N / 31.5 mm
Intake
6.48 kgf / 31.5 mm
valve
14.256 lbs / 1.2401 in.
117.6 N / 35 mm
Exhaust
12.0 kgf / 35 mm
valve
26.4 lbs / 1.3780 in.
45.864 N / 31.5 mm
Intake
4.68 kgf / 31.5 mm
valve
10.296 lbs / 1.2401 in.
100 N / 35 mm
Exhaust
10.2 kgf / 35 mm
valve
22.5 lbs / 1.3780 in.
W1063470
0.016 to 0.045 mm
0.0006 to 0.0018 in.
0.15 mm
0.0059 in.
15.973 to 15.984 mm
0.6289 to 0.6293 in.
16.000 to 16.018 mm
0.6299 to 0.6306 in.
W1063697
KiSC issued 06, 2006 A
If the