Kubota M9540, Workshop Manual, Page: 129 / 619

1-S6
M8540, M9540, WSM ENGINE
ENGINE BODY (Continued)
W1013874
Item Factory Specification Allowable Limit
Valve Stem to Valve Guide
Valve Stem
Valve Guide
Valve Stem to Valve Guide
Valve Stem
Valve Guide
Clearance (Intake)
O.D. (Intake)
I.D. (Intake)
Clearance
(Exhaust)
O.D. (Exhaust)
I.D. (Exhaust)
0.055 to 0.085 mm
0.0022 to 0.0033 in.
6.960 to 6.975 mm
0.2741 to 0.2746 in.
7.030 to 7.045 mm
0.2768 to 0.2773 in.
0.055 to 0.085 mm
0.0022 to 0.0033 in.
6.960 to 6.975 mm
0.2740 to 0.2746 in.
7.030 to 7.045 mm
0.2768 to 0.2773 in.
0.1 mm
0.0039 in.
–
–
0.1 mm
0.0039 in.
–
–
Valve Clearance (Cold) 0.23 to 0.27 mm
0.0091 to 0.010 in.
–
Intake Valve Timing Open
Close
0.24 rad (14
°
)
before T.D.C.
0.63 rad (36
°
)
after B.D.C.
–
–
Exhaust Valve Timing Open
Close
0.79 rad (45
°
)
before B.D.C.
0.30 rad (17
°
)
after T.D.C.
–
–
Valve Spring Free Length
(Intake)
Free Length
(Exhaust)
Tilt
35.1 to 35.6 mm
1.39 to 1.40in.
35.1 to 35.6 mm
1.39 to 1.40 in.
–
34.6 mm
1.36 in.
34.6 mm
1.36 in.
1.0 mm
0.039 in.
Valve Spring Setting Load /
Setting Length
(Intake)
Setting Load /
Setting Length
(Exhaust)
63.5 N / 31.5 mm
6.48 kgf / 31.5 mm
14.3 lbf / 1.24 in.
63.547 N / 31.5 mm
6.48 kgf / 31.5 mm
14.3 lbf / 1.24 in.
45.9 N /
31.5 mm
4.68 kgf / 31.5 mm
10.3 lbf /
1.2401 in.
45.9 N /
31.5 mm
4.68 kgf / 31.5 mm
10.3 lbf /
1.2401 in.
KiSC issued 09, 2008 A