3-10
Table 3-2. Wear Limits
MAXIMUM WEAR
PART NAME
FA
T
RY MAXIMUM FA
T
RY MINIMUM
BEFORE REPAIR
INCHES MM INCHES MM INCHES MM
SEAL END
End Play (Seal Removed) 0.035 0.8890 .030 0.7620 --- ---
Main Bearing Diameter 1.8760 47.6504 --- --- .002 0.051
Main Bearing Journal Diameter --- --- 1.8725 47.5615 .002 0.051
PUMP END
Main Bearing Diameter 1.3760 34.9504 --- --- .002 0.051
Main Bearing Journal Diameter --- --- 1.3735 34.8869 .002 0.051
CONNECTING ROD
Connecting Rod Diameter 1.3768 34.9707 --- --- .0020 0.051
Piston Pin Bearing 0.6883 17.4752 0.6878 17.4701 .001 0.0254
CRANKSHAFT
Crankpin Diameter --- --- 1.3735 34.8869 .0025 0.0635
T h r o w --- H e i g h t
(37 CFM)
0.9698 24.6329 0.9678 24.5821 --- ---
T h r o w --- H e i g h t
(41 CFM)
1.072 27.2288 1.070 27.1780 --- ---
THRUST W ASHER (Thickness)
Pump End 0.145 3.6830 0.144 3.658 .0250 0.6350
Seal End 0.157 3.987 0.155 3.937 .0250 0.6350
CYLINDERS and PISTONS
Bore 2.0010 50.8254 --- --- .002 0.051
Piston (Diameter) --- --- See Figure 3-20 .002 0.051
Piston Pin (Diameter) --- --- 0.6873 17.4574 .001 0.025
Piston Ring Gap 0.013 0.3302 0.005 0.127 .025 0.635
Piston Ring Side Clearance 0.002 0.051 0.001 0.0254 .002 0.051
1.9960
1.9968
1.988
1.994
Figure 3-20. Piston Dimension (Wear Limits)