Toro Workman 3000 Series Service Manual page 43

Engine (cont.)
Item
Valves
Valve length mm (in.)
Intake
Exhaust
Stem O.D. mm (in.)
Intake
Exhaust
Face angle
Thickness of valve head (margin) mm (in.)
Intake
Exhaust
Valve Stem to Guide Clearance mm (in.)
Intake
Exhaust
Valve Guides
Length mm (in.)
Intake
Exhaust
Service size mm (in.)
Valve Seat
Width of seat contact mm (in.)
Seat angle
Sink mm (in.)
Valve Spring
Free length mm (in.)
Load / installed height N/mm (lb./in.)
Out of squareness
Cylinder Block
Cylinder bore mm (in.)
Out of roundness and
taper of cylinder bore mm (in.)
Flatness of gasket surface mm (in.)
Counterbalance Shaft
Front journal diameter mm (in.)
Rear journal diameter mm (in.)
Oil clearance mm (in.)
Front journal
Rear journal
NOTE:
O.D. = Outside Diameter
Workman 3000/4000 Series
Standard Specification
100.6 (3.960)
100.8 (3.968)
6.565 – 6.580
(.2585 – .2591)
6.530 – 6.550
(.2571 – .2579)
45� – 45.5�
1.0 (.039)
1.3 (.051)
0.02 – 0.05
(.0008 – .0020)
0.050 – 0.085
(.0020 – .0033)
44 (1.73)
49.5 (1.949)
0.25 (.010)
0.50 (.020) oversize
0.9 – 1.3 (.035 – .051)
30� / 44� / 65�
46.3 (1.823)
210 / 37.7 (46 / 1.48)
Less than 2�
65.00 – 65.03
(2.5591 – 2.5602)
Less than 0.01 (.0004)
Less than 0.05 (.0020)
19.987 – 20.000
(.7869 – .7874)
43.984 – 44.000
(1.7317 – 1.7322)
0.035 – 0.068
(.0014 – .0027)
0.035 – 0.071
(.0014 – .0028)
Page 3 – 5
Limit
0.5 (.020)
0.8 (.031)
0.10 (.0039)
0.15 (.0059)
0.2 (.008)
45.3 (1.783)
4�
.01 (.0039)
Liquid Cooled Gas Engine