CUMMINS N14 Especificaciones descargar pdf (Pagina 218)

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101

NOTE: If large areas of copper lining are visible in the bear-

ings before the engine has accumulated 241,000 kilometers

[150,000 miles] or 3,750 hours, inspect the engine for con-

tamination from fine dirt particles; and correct the problem

to prevent further engine damage.

Normal bearing wear produces a smooth finish which will

wear into the copper lining. Exposed copper does not

always indicate worn bearings.

Visually inspect the bearing seating surface for nicks or

burrs.

If burrs can not be removed with a fine crocus cloth, the

bearings must be replaced.

NOTE: For more detailed information of bearing damage,

refer to Analysis and Prevention of Bearing Failures, Bulletin

No. 3810387.

Measure the rod bearing shell thickness at the wear lo-

cation with an outside micrometer that has a ball tip.

Connecting Rod Bearing Thickness (Standard)

mm in

2.362 MIN 0.0930

2.405 MAX 0.0947

Discard a bearing shell if its thickness is below the min-

imum specification.

NOTE: Oversize bearing shells are available for crankshafts

which are 0.25 [0.010-inch], 0.51 mm [0.020-inch], 0.76 mm

[0.030-inch], or 1.02 mm [0.040-inch] undersize.

Bearing shells are identified by steel stamped characters

on the back of the bearings to indicate either standard or

the amount of oversize.

Connecting Rod Bearings - Cleaning and Inspection (01-10) Cylinder Block

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Jesus Morales 03 Apr 2025 | 23:07:31

Perfect..

CUMMINS N14 Especificaciones Pagina 218

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