Kubota Z442-B User Manual

68mm STROKESERIES WSM.0116A S.G GENERAL
0.145to0.185 rnrn
0.0057 to 0.0073
in.
151 SERVICING SPECIFICATIONS
(1) ENGINE BODY
Cy I i n d e r He ad
-
Factory Specification
Exhaust Valve
Allowable Limit
I
Open
I Item
I
0.05 rnrn
0.0020 in.
Cylinder Head Surface Flatness
I
~
Top Clearance
I
-
0.50 to 0.70 rnrn
0.0197 to 0.0276 in.
1.15to 1.30rnm
0.04153 to 0.0512
in.
1.05 to 1.15 rnrn
0.041 3 to 0.0453 in.
I
-
Cylinder Head Gasket Thickness
(Grommet Section)
Compression Pressure
Free
Tightened
~
2.84 to 3.24 MPa
29
to 33 kgfkmz
41 2
to 469 psi
2.26 MPa
23
kgflcrnz
327 psi
L
Valves
Valve Clearance (Cold)
2.12 rnrn
0.0835
in.
Valve Seat Width
Valve Seat Angle
0.785 rad.
45"
0.785 rad.
45"
-
I
Valve Face Angle
Valve Recessing
-0.10toO.lOmrn 0.30
rnrn
-0.0039 to 0.0039 in. I 0.0118in.
0.030
to 0.057 mm 0.1 0 rnrn
0.001 18 to 0.00224
in. I 0.0039in.
Clearance between Valve Stem and Valve Guide
Valve Stem O.D.
I
5.968 to 5.980 rnrn
0.23496 to 0.23543 in.
I
6.01 0 to 6.025 rnrn
0.23661
to 0.23720 in.
-_
Valve Guide I.D.
Valve Timing
Open
Close
0.35 rad. (20")
before T.D.C.
0.79 rad. (45")
after B.D.C.
Inlet Valve
0.87 rad.
(50")
before B.D.C.
0.26 rad.
(1 5")
after T.D.C.
Close
I
5-16

Kubota Z442-B Specifications

General

Brand	Kubota
Model	Z442-B
Category	Engine
Language	English