Engine - Toro Groundsmaster 300 Series Service Manual

Engine

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Item
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Governor
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Operating Speed (no load)
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Idle Speed (no load)
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Compression
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Pressure Difference Between Cylinders
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Cylinder Injection Order
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Injection Timing
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Cylinder Head
Bottom Surface Flatness (distortion)
Valve Guide I.D.
Valve Seat Angle
Valve Seat Width
Valve Seat Sinkage
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Valve Clearance (cold)
(both intake and exhaust)
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Valves
Valve Head Dia. (IN)
Valve Head Dia. (EX)
Overall Length
Valve Stem O.D.
Stem to Guide Clearance (IN)
Stem to Guide Clearance (EX)
Valve Seat Face Angle
Valve Head Thickness (margin width)
Valve Head Sinkage
(from cyl. head bottom face)
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Valve Spring
Free Length
Installed Load/Height
Squareness
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Rocker Arm I.D.
Rocker Arm to Shaft Clearance
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Cylinder Block
Camshoft hole I.D.
Front (Bush)
Oil Clearance
Center
Rear
Cylinder Bore
Oversize finish tolerance
Cylindricity of cylinder bore
Warpage of head gasket mating surface
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®
Groundsmaster 300 Series
Standard Specification
Mechanical/Centrifugal
3200 rpm
1500 rpm
2
32 kg/cm (455 psi) at 280 rpm
2
2.5 kg/cm (36 psi) max.
1 - 3 - 2
o
23 B.T.D.C. (at smoke set position
0.05 mm (0.002 in.) max.
6.6 mm (0.26 in.)
o
45
1.3 - 1.8 mm (0.051 - 0.071 in.)
0.25 mm (0.01 in.)
27.2 mm (1.079 in.)
25.2 mm (0.992 in.)
114.5 (4.508 in.)
6.6 mm (0.260 in.)
o
45
1 mm (0.039 in.)
0.5 mm (0.020 in.)
43 mm (1.693 in.)
14 ± 0.7kg/36 mm
(30.9 ± 1.5 lb./1.417 in.)
29.75 ± 1.5 kg/28 mm
(65.6 ± 3.3 lb./1.102 in.)
o
2
18.9 mm (0.744 in.)
45 mm (1.772 in.)
0.15 mm (0.006 in.)
44 mm (1.732 in.)
34 mm (1.339 in.)
73 mm (2.874 in.)
0 to 0.03 mm (0 to 0.001 in.)
0.01 mm (0.0004 in.) max.
0.05 mm (0.0020 in.) max.
Page 4 - 5
Repair Limit
2
26 kg/cm (370 psi) 22 kg/cm
0.1 mm (0.004 in.)
2.5 mm (0.1 .in.)
–1 mm (– 0.039 in.)
0.10 mm (0.004 in.)
0.15 mm (0.006 in.)
– 1 mm (– 0.039 in.)
–0.2 mm (0.008 in.)
+0.2 mm (0.008 in.) + 0.95 mm (0.037 in.)
0.1 mm (0.004 in.)
Service Limit
± 50 rpm
± 50 rpm
2
(313 psi)
± 2 o
0.5 mm (0.020 in.)
1.5 mm (0.06 in.)
–15%
–10%
o
3
Specifications