Servicing Specifications - Kubota WG972-E2 Workshop Manual

WG972-E2, DF972-E2, WSM

2. SERVICING SPECIFICATIONS

ENGINE BODY
Valve Clearance (Cold)
Compression Pressure
Top Clearance
Cylinder Head Surface
Valve Recessing (Intake and Exhaust)
Valve Stem to Valve Guide
Valve Stem
Valve Guide
Valve Face
Valve Seat
Valve Timing (Intake Valve)
Valve Timing (Exhaust Valve Valve)
Item
–
Variance Among
Cylinder
Flatness
Clearance
O.D.
I.D.
Angle
Angle
Width
Open
Close
Open
Close
Factory Specification
0.145 to 0.185 mm
0.00571 to 0.00728 in.
1.27 MPa
13.0 kgf/cm
185 psi
–
1.35 to 1.65 mm
0.0531 to 0.0650 in.
–
-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.
0.785 rad
45 °
0.785 rad
45 °
2.12 mm
0.0835 in.
0.35 rad
20 °
before T.D.C.
0.79 rad
45 °
after B.D.C.
0.87 rad
50 °
before B.D.C.
0.26 rad
15 °
after T.D.C.
S-6
GASOLINE / LPG ENGINE
Allowable Limit
–
0.88 MPa
2 2
9.0 kgf/cm
128 psi
10 % or less
–
0.05 mm
0.0020 in.
0.30 mm
0.0118 in.
0.10 mm
0.0039 in.
–
–
–
–
–
–
–
–
–
KiSC issued 01, 2006 A