Engine [Z482, D722 - Kubota WSM J Series Workshop Manual

J SERIES, WSM

(2) Engine [Z482, D722]

(A) Engine Body
Cylinder Head Surface
Top Clearance
Compression Pressure
Variance Among Cylinders
Valve Clearance (Cold)
Valve Seat
Valve Seat
Valve Face
Valve Recessing
Valve Stem to Valve Guide
Valve Stem
Valve Guide
Valve Timing (Intake Valve)
Valve Timing (Exhaust Valve)
Item
Flatness
Width
Angle
Angle
Clearance
O.D.
I.D.
Open
Close
Open
Close
S-22
Factory Specification
–
0.50 to 0.70 mm
0.0197 to 0.0276 in.
2.84 to 3.24 MPa
2
29.0 to 33.0 kgf/cm
412 to 469 psi
–
0.145 to 0.185 mm
0.00571 to 0.00728 in.
2.12 mm
0.0835 in.
0.79 rad
45
0.79 rad
45
–0.10 to 0.10 mm
–0.0039 to 0.0039 in.
0.030 to 0.057 mm
0.00118 to 0.00224 in.
5.968 to 5.980 mm
0.23496 to 0.23543 in.
6.010 to 6.025 mm
0.23661 to 0.23720 in.
0.35 rad. (20)
before T.D.C.
0.79 rad. (45)
after B.D.C.
0.89 rad. (50)
before B.D.C.
0.26 rad. (15)
after T.D.C.
GENERAL
Allowable Limit
0.05 mm
0.0020 in.
–
2.26 MPa
2
23.0 kgf/cm
327 psi
10% or less
–
–
–
–
0.30 mm
0.0118 in.
0.10 mm
0.0039 in.
–
–
–
–
–
–
W10152370
KiSC issued 10, 2016 A