PUMP GP-FUEL PRIMING 5411625 - Caterpillar

Table 4
Idler Gear and Hub
Callout Quantity Part Specification Description
3 - - Tighten the bolts for the idler gear to the following torque. 44 N m (33 lb ft)
- - - Bore diameter of the idler gear 57.14 to 57.18 mm (2.2495 to 2.2512 inch)
- - - Bore diameter of the idler gear with roller bearings 72.35 to 72.36 mm (2.8484 to 2.8488 inch)
- - - Width of idler gear and split bearing assembly 30.14 to 30.16 mm (1.186 to 1.187 inch)
- - - Inside diameter of idler gear bearings with flanges 50.78 to 50.80 mm (1.999 to 2.000 inch)
- - - Outside diameter of idler gear hub 50.70 to 50.74 mm (1.9961 to 1.9976 inch)
- - - Outside diameter of idler gear hub with roller bearings 49.975 to 49.988 mm (1.9675 to 1.9680 inch)
- - - Clearance of idler gear bearing on hub 0.04 to 0.10 mm (0.0016 to 0.0039 inch)
- - - Idler gear end play 0.10 to 0.20 mm (0.004 to 0.008 inch)
- - - Idler gear end play with roller bearings 0.10 to 0.75 mm (0.0039 to 0.0295 inch)
- - - Maximum permissible end play 0.38 mm (0.015 inch)
- - - Number of teeth (73)
Illustration 2 g00918756
Table 5
Crankshaft Gear
Callout Quantity Part Specification Description
4 - - Bore diameter of crankshaft gear 47.625 to 47.650 mm (1.8750 to 1.8760 inch)
- - - Outside diameter of crankshaft hub 47.625 to 47.645 mm (1.8750 to 1.8758 inch)
- - - Clearance of gear on crankshaft −0.020 to +0.020 mm (-0.0008 to +0.0008 inch)
- - - Number of teeth (34)
Table 6
Oil Pump Idler Gear
Callout Quantity Part Specification Description
5 - - Inside diameter of oil pump idler gear bearing 22.22 to 22.26 mm (0.875 to 0.876 inch)
- - - Outside diameter of oil pump idler gear shaft 22.19 to 22.21 mm (0.873 to 0.874 inch)
- - - Clearance of oil pump idler gear bearing on shaft 0.024 to 0.030 mm (0.0009 to 0.0012 inch)
- - - End play of the oil pump idler gear 0.050 to 0.275 mm (0.0019 to 0.0108 inch)
Table 7
Backlash Values
Item Quantity Part Specification Description
- - - Backlash between drive gear and idler gear of balancer (if equipped) 0.097 to 0.170 mm (0.0038 to 0.0066 inch)
- - - Backlash between idler gear and oil pump drive gear 0.046 to 0.106 mm (0.0018 to 0.0041 inch)
- - - Backlash between oil pump idler gear and crankshaft gear 0.095 to 0.160 mm (0.0037 to 0.0063 inch)
- - - Backlash between the idler gear and the crankshaft gear 0.064 to 0.124 mm (0.0025 to 0.0049 inch)
- - - Backlash between camshaft gear and idler gear 0.052 to 0.107 mm (0.0020 to 0.0042 inch)
- - - Backlash between fuel injection pump gear and idler gear 0.054 to 0.109 mm (0.0021 to 0.0043 inch)
- - - Backlash between water pump gear and fuel injection pump gear 0.073 to 0.133 mm (0.0028 to 0.0052 inch)