wsm L503 User Manual

1-S4
L3130 · L3430 · L3830 · L4630 · L5030, WSM
ENGINE
2. SERVICING SPECIFICATIONS
ENGINE BODY
W1013874
Item Factory Specification Allowable Limit
Cylinder Head Surface Flatness – 0.05 mm / 500 mm
0.0020 in. /
19.69 in.
Compression Pressure
(When Cranking with Starting Motor)
Difference among Cylinders
3.53 to 4.02 MPa /
290 min
−1
(rpm)
36 to 41 kgf/cm
2
/
290 min
−1
(rpm)
512 to 583 psi /
290 min
−1
(rpm)
–
2.55 MPa /
290 min
−1
(rpm)
26 kgf/cm
2
/
290 min
−1
(rpm)
370 psi /
290 min
−1
(rpm)
10 % or less
Top Clearance 0.55 to 0.70 mm
0.0217 to 0.0276 in.
–
Valve Clearance (When Cold) 0.18 to 0.22 mm
0.0071 to 0.0087 in.
–
Valve Seat Width (Intake)
Width (Exhaust)
2.12 mm
0.0835 in.
2.12 mm
0.0835 in.
–
–
Valve Seat Angle (Intake)
Angle (Exhaust)
1.047 rad
60 °
0.785 rad
45 °
–
–
Valve Face Angle (Intake)
Angle (Exhaust)
1.047 rad
60 °
0.785 rad
45 °
–
–
Valve Stem to Valve Guide
Valve Stem
Valve Guide
Clearance
O.D.
I.D.
0.040 to 0.070 mm
0.00157 to 0.00276 in.
7.960 to 7.975 mm
0.31339 to 0.31398 in.
8.015 to 8.030 mm
0.31555 to 0.31614 in.
0.1 mm
0.0039 in.
–
–
Valve Recessing Protrusion
Recessing
0.05 mm
0.0020 in.
0.15 mm
0.0059 in.
–
0.4 mm
0.0157 in.
KiSC issued 02, 2007 A

wsm L503 Specifications

General

Brand	wsm
Model	L503
Category	Tractor
Language	English