ENGINE
M6060, M7060, WSM
1-S11
4. CHECKING, DISASSEMBLING AND SERVICING
[1] CHECKING AND ADJUSTING
(1) Engine Body
Compression pressure
1. After warming-up the engine, remove the air cleaner, muffler,
glow lead, and glow plugs.
2. Set a compression tester (1) (Code No.: 07909-30208) with the
adaptor (2) to the glow plug hole.
3. Crank the engine with the starter to operate the engine approx.
200 to 300 min
-1
(rpm).
4. Measure a maximum value of the compression pressure. Do the
same steps twice for each cylinder.
• Examine the compression pressure with the specified
valve clearance.
• Always use a fully charged battery for you do this test.
• Variances in cylinder compression values must be less
than 10 %.
9Y1210828ENS0004US0
Compression pressure
Factory specification
3.92 MPa / 250 min
-1
(rpm)
40.0 kgf/cm
2
/ 250 min
-1
(rpm)
569 psi / 250 min
-1
(rpm)
Allowable limit
2.90 MPa / 250 min
-1
(rpm)
29.6 kgf/cm
2
/ 250 min
-1
(rpm)
421 psi / 250 min
-1
(rpm)
Tightening torque
Glow lead mounting nut
0.98 to 1.7 N·m
0.10 to 0.18 kgf·m
0.73 to 1.3 lbf·ft
Glow plug
7.7 to 9.3 N·m
0.78 to 0.95 kgf·m
5.7 to 6.8 lbf·ft
(1) Compression Tester (2) Glow Plug Adaptor
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