SPECIFICATIONS

Surface finish of connecting rod bearing journals
. . . . . . . . . . . . . . . . . . . . . . Ra 0.3 microns maximum
Surface finish of radii . . . . Ra 0.3 microns maximum
i04332763
Main Bearing Journal
The original size of the main bearing journal
. . .83.980 to 84.000 mm ((3.30629 to 3.30708 inch))
Maximum permissible wear of the main bearing
journals . . . . . . . . . . . . . . . 0.040 mm ((0.0016 inch))
Radius of the fillet of the main bearing journals
. . . . .3.875 to 4.125 mm ((0.15256 to 0.16240 inch))
Surface finish of bearing journals and crank pins
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ra 0.2 microns
Surface finish of radii . . . . . . . . . . . . . Ra 0.4 microns
Width of new main bearing journal where the thrust
washer is installed
. . . . .35.235 to 35.165 mm ((1.3872 to 1.3844 inch))
Width of new main bearing journal where the thrust
washer is not installed
. . . . .35.25 to 35.15 mm ((1.38779 to 1.38386 inch))
The shell for the main bearings
The shells for the main bearings are available for
remachined journals which have the following
oversize dimensions.
Oversize bearing shell
. . . . . . . . . . . . . . . . . . . . 0.127 mm ((0.005 inch))
Oversize bearing shell
. . . . . . . . . . . . . . . . . . . . 0.254 mm ((0.010 inch))
Oversize bearing shell
. . . . . . . . . . . . . . . . . . . . 0.508 mm ((0.020 inch))
Thickness at center of the shells of oversize bearing
shell 0.25 mm (0.010 inch)
. . . . .2.226 to 2.232 mm ((0.08764 to 0.08787 inch))
Thickness at center of the shells of oversize bearing
shell 0.50 mm (0.020 inch)
. . . . .2.353 to 2.359 mm ((0.09264 to 0.09287 inch))
Thickness at center of the shells of oversize bearing
shell 0.76 mm (0.030 inch)
. . . . .2.480 to 2.486 mm ((0.09764 to 0.09787 inch))
Width of the main bearing shells
. . . . .26.32 to 26.58 mm ((1.03622 to 1.04645 inch))
Clearance between the bearing shell and the main
bearing journals
. . . . .0.032 to 0.102 mm ((0.00126 to 0.00402 inch))
34 UENR0622-02
Specifications Section
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