C11 and C13 Engines Caterpillar

Engine Oil Pump

Usage:

730C2 2L7

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Illustration 1	g02790671

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NOTICE

Before operating the engine, the oil pump must be lubricated with clean engine oil. The oil pump must turn freely by hand. Damage to the drive gear and internal pump damage can occur if the oil pump is not lubricated with clean engine oil.

(1) Seal

Prior to installation, lubricate the bores with the lubricant being sealed.

(2) Diameter of two shafts ... 18.000 ± 0.005 mm (.7087 ± .0002 inch)

Bores in pump body for two shafts ... 18.050 ± 0.010 mm (.7106 ± .0004 inch)

(3) Seal groove

Prior to installation, lubricate the bore in the engine front cover with the lubricant being sealed.

(A) Drive gear

Average diameter of the drive gear ... 95.28 ± 0.10 mm (3.75117 ± 0.00394 inch)

Maximum diameter of the drive gear ... 95.42 mm (3.75669 inch)

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