Kubota V3300-E2B - 4 Checking, Disassembling and Servicing; Checking and Adjusting

S-15
V3300-E2B, V3300-T-E2B, WSM
DIESEL ENGINE
4. CHECKING, DISASSEMBLING AND SERVICING
[1] CHECKING AND ADJUSTING
(1) Engine Body
Compression Pressure
1. After warming up the engine, stop it and remove the air cleaner,
the muffler and all nozzle holders.
2. Install a compression tester (Code No: 07909-30208) for diesel
engines to nozzle holder hole.
3. After making sure that the stop lever is set at the stop position
(Non-injection), run the engine at 200 to 300 min
−1
(rpm) with the
starter.
4. Read the maximum pressure. Measure the pressure more than
twice.
5. If the measurement is below the allowable limit, apply a small
amount of oil to the cylinder wall through the nozzle hole and
measure the compression pressure again.
6. If the compression pressure increase after applying oil. check the
cylinder wall and piston rings.
7. If the compression pressure is still less than the allowable limit,
check the top clearance, valve and cylinder head.
NOTE■
• Check the compression pressure with the specified valve
clearance.
• Always use a fully charged battery for performing this test.
• Variances in cylinder compression values should be under
10 %.
W1048776
Compression
pressure
Factory
spec.
V3300-
E2B
4.32 MPa / 250 min
-1
(rpm)
44 kgf/cm
2
/ 250 min
-1
(rpm)
626 psi / 250 min
-1
(rpm)
V3300-T-
E2B
3.92 MPa / 250 min
-1
(rpm)
40 kgf/cm
2
/ 250 min
-1
(rpm)
569 psi / 250 min
-1
(rpm)
Allowable
limit
V3300-
E2B
3.26 MPa / 250 min
-1
(rpm)
33.2 kgf/cm
2
/ 250 min
-1
(rpm)
472 psi / 250 min
-1
(rpm)
V3300-T-
E2B
2.99 MPa / 250 min
-1
(rpm)
30.5 kgf/cm
2
/ 250 min
-1
(rpm)
434 psi / 250 min
-1
(rpm)
Tightening torque
Nozzle holder assembly
49.0 to 68.6 N·m
5.0 to 7.0 kgf·m
36.2 to 50.6 ft-lbs
Overflow pipe assembly
retaining nut
19.6 to 24.5 N·m
2.0 to 2.5 kgf·m
14.5 to 18.1 ft-lbs
Injection pipe retaining nut
22.6 to 36.3 N·m
2.3 to 3.7 kgf·m
16.6 to 26.8 ft-lbs
KiSC issued 06, 2006 A