Checking, Disassembling And Servicing; Checking And Adjusting [V3800-Cr-Ti]; Engine Body - Kubota M108S Workshop Manual

M108S, WSM

4. CHECKING, DISASSEMBLING AND SERVICING

[1] CHECKING AND ADJUSTING [V3800-CR-TI]

(1) Engine Body

Compression
1. After warming up the engine, stop it and remove the air cleaner,
the muffler, injection pipes, cylinder head covers, overflow pipe,
all injectors and all injectors gaskets.
2. Install a compression tester (2) (Code No: 07909-30208) and
injector adaptor (1) to injector hole.
3. Run the engine at 200 min
4. Read the maximum compression. Measure the compression
more than twice.
NOTE
• Check the compression with the specified valve clearance.
• Always use a fully charged battery for performing this test.
• Variances in cylinder compression values should be under
10 %.
Factory spec.
Compression
Allowable limit
Injector clamp nut
Overflow pipe joint screw
(M6 x 1.0)
Cylinder head cover 1
Tightening torque
screw
Cylinder head cover 2
screw
Injection pipe retaining nut
(1) Injector Adaptor
1-S13
−1
(rpm) with the starter.
3.09 to 3.29 MPa / 200 min
2
31.5 to 33.5 kgf/cm / 200 min
449 to 477 psi / 200 min
-1
2.41 MPa / 200 min (rpm)
2 -1
24.6 kgf/cm / 200 min
-1
350 psi / 200 min (rpm)
24 to 27 N·m
2.4 to 2.8 kgf·m
18 to 20 lbf·ft
9.81 to 11.2 N·m
1.00 to 1.15 kgf·m
7.24 to 8.31 lbf·ft
6.87 to 11.2 N·m
0.700 to 1.15 kgf·m
5.07 to 8.31 lbf·ft
9.81 to 11.2 N·m
1.00 to 1.15 kgf·m
7.24 to 8.31 lbf·ft
23 to 36 N·m
2.3 to 3.7 kgf·m
17 to 26 lbf·ft
(2) Compression Tester
KiSC issued 06, 2007 A
ENGINE
-1
(rpm)
-1
(rpm)
-1
(rpm)
(rpm)
W1048776