3054 and 3056 Industrial and Generator Set Engines Caterpillar


Engine Oil Pump

Usage:

3056 1ML



Illustration 1g00878623

(1) Tighten the bolts for the cover on the engine oil pump to the following torque. ... 28 N·m (21 lb ft)

Tighten the bolts that fasten the engine oil pump to the front main bearing cap to the following torque. ... 22 N·m (16 lb ft)

Tighten the bolts for the engine oil suction tube to the following torque. ... 22 N·m (16 lb ft)




Illustration 2g00578755

Clearance of the outer rotor to the body




Illustration 3g00578757

Clearance of inner rotor to outer rotor




Illustration 4g00578719

End play of rotor assembly

3054 Engine

Type ... Gear-driven differential rotor

Number of lobes

Inner rotor ... 6
Outer rotor ... 7

(2) Clearance of the outer rotor to the body

Engines without the balancer unit ... 0.15 to 0.34 mm (0.006 to 0.013 inch)
Engines with the balancer unit ... 0.31 to 0.45 mm (0.012 to 0.017 inch)

(3) Clearance of inner rotor to outer rotor ... 0.04 to 0.13 mm (0.0015 to 0.0050 inch)

(4) End play of rotor assembly ... 0.03 to 0.10 mm (0.001 to 0.004 inch)

3056 Engine

Type ... Gear-driven differential rotor

Number of lobes

Inner rotor ... 4
Outer rotor ... 5

(2) Clearance of the outer rotor to the body ... 0.15 to 0.34 mm (0.006 to 0.013 inch)

(3) Clearance of inner rotor to outer rotor ... 0.04 to 0.13 mm (0.0015 to 0.0050 inch)

(4) End play of rotor assembly

Naturally aspirated engines
Inner rotor ... 0.05 to 0.12 mm (0.002 to 0.005 inch)
Outer rotor ... 0.04 to 0.11 mm (0.0015 to 0.0044 inch)
Turbocharged engines
Inner rotor ... 0.043 to 0.118 mm (0.0017 to 0.0046 inch)
Outer rotor ... 0.031 to 0.106 mm (0.0012 to 0.0042 inch)

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