Toro Workman 3000 Series Service Manual page 44

Engine (cont.)
Item
Piston
O.D. mm (in.)
Clearance (piston to cylinder) mm (in.)
Ring groove width mm (in.)
No. 1
No. 2
Oil
Service size mm (in.)
Piston Ring
End gap mm (in.)
No. 1
No. 2
Oil
Side clearance mm (in.)
No. 1
No. 2
Piston Pin
O.D. mm (in.)
Piston pin press–in load N (lbs.)
Piston pin press–in temperature
Connecting Rod
Center length mm (in.)
Parallelism between
big end and small end mm (in.)
Twist mm (in.)
Connecting rod big end
to crankshaft side clearance mm (in.)
NOTE:
O.D. = Outside Diameter
O.S. = Oversize Diameter
U.S. = Undersize Diameter
Liquid Cooled Gas Engine
Standard Specification
64.97 – 65.00
(2.5579 – 2.5591)
0.02 – 0.04
(.0008 – .0016)
1.22 – 1.24
(.0480 – .0488)
1.21 – 1.23
(.0476 – .0484)
2.815 – 2.835
(.1108 – .1116)
0.25 (.010), 0.50 (.020),
0.75 (.030), 1.00 (.039)
oversize
0.15 – 0.30
(.0059 – .0118)
0.35 – 0.50
(.0138 – .0197)
0.2 – 0.7
(.008 – .028)
0.03 – 0.07
(.0012 – .0028)
0.02 – 0.006
(.0008 – .0024)
16.001 – 16.007
(.6300 – .6302)
5.00 – 15.000
(1.102 – 3.307)
Ordinary room temperature
101.95 – 102.05
(4.0138 – 4.0178)
0.05
(.0020)
0.1
(.004)
0.10 – 0.25
(.0039 – .0098)
Page 3 – 6
Limit
0.8 (.0315)
0.8 (.0315)
1.0 (.0394)
0.12 (.0047)
0.10 (.0039)
0.4 (.016)
Workman 3000/4000 Series