Kubota WSM ZD331 User Manual

1-S6
ZD321, ZD326, ZD331, WSM
ENGINE
ENGINE BODY (Continued)
W1013874
Item Factory Specification Allowable Limit
Rocker Arm Shaft to Rocker Arm
Rocker Arm Shaft
Rocker Arm
Oil Clearance
O.D.
I.D.
0.016 to 0.045 mm
0.00063 to 0.00177 in.
10.473 to 10.484 mm
0.41232 to 0.41276 in.
10.500 to 10.518 mm
0.41339 to 0.41410 in.
0.15 mm
0.0059 in.
–
–
Push Rod Alignment – 0.25 mm
0.0098 in.
Tappet to Tappet Guide
Tappet
Tappet Guide
Oil Clearance
O.D.
I.D.
0.016 to 0.052 mm
0.00063 to 0.00205 in.
17.966 to 17.984 mm
0.70732 to 0.70803 in.
18.000 to 18.018 mm
0.70866 to 0.70937 in.
0.10 mm
0.0039 in.
–
–
Timing Gear
Crank Gear to Idle Gear
Idle Gear to Cam Gear
Idle Gear to Injection Pump Gear
Crank Gear to Oil Pump Drive Gear
Backlash
Backlash
Backlash
Backlash
0.043 to 0.124 mm
0.00169 to 0.00488 in.
0.047 to 0.123 mm
0.00185 to 0.00484 in.
0.046 to 0.124 mm
0.00181 to 0.00488 in.
0.041 to 0.123 mm
0.00161 to 0.00484 in.
0.15 mm
0.0059 in.
0.15 mm
0.0059 in.
0.15 mm
0.0059 in.
0.15 mm
0.0059 in.
Idle Gear Side Clearance 0.20 to 0.51 mm
0.0079 to 0.0201 in.
0.80 mm
0.0315 in.
Camshaft Side Clearance
Alignment
0.15 to 0.31 mm
0.0059 to 0.0122 in.
–
0.50 mm
0.0197 in.
0.01 mm
0.0004 in.
Cam Height Intake and
Exhaust
26.88 mm
1.0583 in.
26.83 mm
1.0563 in.
Camshaft Journal to Cylinder Block Bore
Camshaft Journal
Cylinder Block Bore
Oil Clearance
O.D.
I.D.
0.050 to 0.091 mm
0.00197 to 0.00358 in.
32.934 to 32.950 mm
1.29661 to 1.29724 in.
33.000 to 33.025 mm
1.29921 to 1.30020 in.
0.15 mm
0.0059 in.
–
–
KiSC issued 04, 2007 A

Kubota WSM ZD331 Specifications

General

Transmission	Hydrostatic
Fuel Type	Diesel
Cylinders	3
Engine Type	Diesel
Cutting Width	72 inches
PTO	Independent
Type	Zero-Turn Mower
Displacement	68.5 cu in
Drive	2WD
Turning Radius	Zero