Toro Reelmaster 5100-D Service Manual page 22

Engine (cont.)
Item
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Piston
Type
Material
Piston Outside Diameter (skirt end)
Piston to Cylinder Wall Clearance
Oversize
Protrusion from cylinder
block top surface
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Piston Pin
Type
Outside Diameter
Pin to Piston Clearance
Pin to Connecting Rod Clearance
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Piston Rings
Number of Rings
2 Compression
1 Oil
Compression Ring Width
Oil Ring Width
Compression Ring Side Clearance (No. 2)
Oil Ring Side Clearance
Ring Gap
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Connecting Rod
Type
Bend and Twist
Big End Thrust Clearance
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Connecting Rod Bearings
Oil Clearance
Undersize
______ ___ ______ ___ ______ ___ ______ __ __ __ __ __
Crankshaft
Type
Bend
End Play
Journal O.D.
Pin O.D.
Finish Undersize
Journal U.S. 0.25 mm (0.01 in.)
Journal U.S. 0.50 mm (0.02 in.)
Pin U.S. 0.25 mm (0.01 in.)
Pin U.S. 0.50 mm (0.02 in.)
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Main Bearings
Oil Clearance
Undersize
Specifications
Standard Specification
Aluminum alloy
76 mm (2.99 in.)
0.25, 0.50 mm
(0.01, 0.02 in.)
0.9 mm (0.035 in.)
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Semi-floating
18 mm (0.709 in.)
Press-fit load: 1000 + 500 kg
(2200 + 1100 lb.)
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No. 1: Chrome plated, semi-keystone type
No. 2: Tapered
Chrome plated ring with coil expander
2 mm (0.079 in.)
3 mm (0.118 in.)
0.05 - 0.09 mm (0.002 - 0.004 in.)
0.03 - 0.07 mm (0.001 - 0.003 in.)
0.15 - 0.40 mm (0.006 - 0.016 in.)
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Forged I-beam
Within 0.05 mm (0.002 in.)
0.1 - 0.35 mm (0.004 - 0.014 in.)
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0.25, 0.50 mm
(0.01, 0.02 in.)
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Fully counterbalanced
Within 0.03 mm (0.001 in.)
0.05 - 0.175 mm (0.002 - 0.007 in.)
43 mm (1.693 in.)
40 mm (1.575 in.)
42.715 - 42.730 mm
(1.6817 - 1.6823 in.)
42.465 - 42.480 mm
(1.6719 - 1.6724 in.)
39.715 - 39.730 mm
(1.5636 - 1.5642 in.)
39.465 - 39.480 mm
(1.5537 - 1.5543 in.)
__ __ _ __ ______ ___ ______ ___ ______ ___ ___ __ ___ ______ ___ _____ __ __ __
0.25, 0.50 mm
(0.01, 0.02 in.)
Repair Limit
Solid
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– 0.15 mm (– 0.006 in.)
– 0.15 mm (– 0.006 in.)
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Page 3 - 6 Rev. A
Service Limit
0.3 mm (0.012 in.)
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0.08 mm (0.003 in.)
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0.2 mm (0.008 in.)
0.2 mm (0.008 in.)
1.5 mm (.060 in.)
__ __ __ ___ ___ ______ ___ ______ __
0.15 mm (0.006 in.) max.
0.5 mm (0.02 in.)
__ __ __ ___ ___ ______ ___ ______ __
0.15 mm (0.006 in.)
__ __ __ ___ ___ ______ ___ ______ __
0.05 mm (0.002 in.)
– 0.70 mm (– 0.028 .in)
– 0.70 mm (– 0.028 .in)
__ __ __ ___ ___ ______ ___ ______ __
0.10 mm (0.004 in.)
®
Reelmaster 223-D/5100-D
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