Kubota WSM F2880 User Manual

1-S4
F2880, F3680, RCK72-F36, RCK72R-F36, RCK60-F36, RCK60R-F36, WSM
ENGINE
2. SERVICING SPECIFICATIONS
ENGINE BODY
W10138740
Item Factory Specification Allowable Limit
Compression Pressure
Difference among Cylinders
3.72 to 4.12 MPa
38 to 42 kgf/cm
2
539 to 596 psi
–
2.25 MPa
23.0 kgf/cm
2
327 psi
10 % or less
Valve Clearance (Cold) 0.145 to 0.185 mm
0.00571 to 0.00728 in.
–
Top Clearance 0.55 to 0.70 mm
0.0217 to 0.0276 in.
–
Cylinder Head Surface Flatness – 0.05 mm
0.0020 in.
Valve Recessing Intake and Exhaust −0.05 to 0.25 mm
−0.0020 to 0.0098 in.
0.40 mm
0.0157 in.
Valve Stem to Valve Guide
Valve Stem
Valve Guide
Clearance
O.D.
I.D.
0.035 to 0.065 mm
0.0014 to 0.0025 in.
6.960 to 6.975 mm
0.2741 to 0.2746 in.
7.010 to 7.025 mm
0.2760 to 0.2765 in.
0.10 mm
0.0039 in.
–
–
Valve Face Angle (Intake)
Angle (Exhaust)
1.047 rad
60 °
0.785 rad
45 °
–
–
Valve Seat Angle (Intake)
Angle (Exhaust)
Width
1.047 rad
60 °
0.785 rad
45 °
2.12 mm
0.0835 in.
–
–
Valve Spring Tilt
Free Length
Setting Load
–
37.0 to 37.5 mm
1.457 to 1.476 in.
117.4 N / 31.0 mm
11.97 kgf / 31.0 mm
26.4 lbs / 1.22 in.
1.0 mm
0.039 in.
36.5 mm
1.437 in.
100.0 N / 31.0 mm
10.2 kgf / 31.0 mm
22.5 lbs / 1.22 in.
KiSC issued 04, 2006 A

Kubota WSM F2880 Specifications

General

Brand	Kubota
Model	WSM F2880
Category	Lawn Mower
Language	English