TM 5-3820-233-35/1
Table 1. Engine Repair and Replacement Standards --Continued
Manufacture's
Maximum
Desired
Dimensions and
Allowable
Tolerance in Inches
Components
Clearance
Wear and
Clearance
Max.
Min.
Min.
Max.
Oil Control Rings:
0.0230
____
0.0080
____
0.0430
Gap
0.0015
0.0055
____
0.0080
____
Clearance-Ring to Groove
Piston Pins
1.4996
1.5000
1.4980
____
____
Diameter
0.0100
____
____
0.0025
0.0034
Pin-to-Piston Bushing Clearance
0.0100
____
____
0.0024
0.0015
Pin-to-Rod Bushing Clearance
3.6050
3.6200
____
____
Length
____
____
0.0160
0.0640
0.0640
Pin-to-Retainer End Clearance
Piston Pin Bushings
1.5030
____
1.5050
1.5025
____
Inside Diameter
Connecting Rod
1.5020
1.5080
1.5015
____
____
Inside Diameter Upper Bushing
____
____
0.0060
0.0120
____
Normal Rod Side Clearance
Camshaft
Shaft Diameter-At Bearings
1.4970
1.4975
____
____
Front and Rear
____
1.4980
1.4985
____
____
Center and Intermediate
____
1.1880
____
1.1875
____
Shaft Diameter-At Gear
____
2.8740
2.8760
____
____
____
Length-Thrust Bearing End Journal
0.0040
0.0120
0.0180
____
____
End Thrust
____
0.1200
0.1220
____
____
Thrust Washer Thickness
Balance Shaft
____
1.4970
1.4975
____
____
Shaft Diameter at Bearing
____
1.1875
1.1880
____
____
Shaft Diameter at Gear
2.8740
2.8760
____
____
____
Length-Thrust Bearing
0.0120
____
0.0180
____
0.0040
End Thrust
____
0.1200
0.1220
____
____
Thrust Washer Thickness
Camshaft and Balance Shaft Bearings
Inside Diameter
____
1.5000
1.5010
____
____
Front and Rear
____
1.5030
1.5010
____
Center and Intermediate
____
Clearance-Bearings-to-Shaft
____
____
0.0040
0.0025
0.0060
Front and Rear (Next to Flange)
____
____
0.0025
0.0050
0.0090
Center and Intermediate
Outside Diameter of Bearings
2.1880
2.1885
____
Front and Rear
____
____
2.1840
2.1860
____
____
Intermediate
____
2.1875
2.1885
____
____
Diameter of Block Bore
____
Clearance-Bearings-to-Block
____
____
0.001
0.0005
Front and Rear
____
____
Press
Loose
____
____
____
____
0.0015
0.0045
Intermediate
____
Camshaft and Balance Shaft Gears
0.0030
0.0080
____
____
0.010
Backlash
1.1865
1.1875
____
____
____
Gear Inside Diameter
____
____
0.0015
0.0000
Clearance-Gear-to-Shaft
____
____
____
____
Press
____
Idler Gear
0.0080
0.0030
____
____
0.010
Backlash
1/2 lb.
6 3/4
Preload-Variation on pull 2 lbs.-11 oz.
____
____
1/2-6 3/4
lbs.
lbs.
Crankshaft Timing Gear
0.010
0.0080
0.0030
____
____
Backlash
1-6
