CUMMINS N14 Especificações descarregar pdf (Página 188)

100

101

Measure the inside diameter in the three positions shown.

The inside diameter must be completely round within

0.0190 mm [0.00075-inch].

Main Bearing Bore I.D.

(Capscrews Torqued to Specification)

mm in

120.599 MIN 4.7480

120.637 MAX 4.7495

Cylinder Block - Inspection

Caution: All measurements of the cylinder block must

be made when the block is positioned on a flat surface.

If the block is mounted on the engine stand, the mea-

surements can be wrong because of distortion.

Inspect the gasket surfaces.

Visually inspect for burrs or damage.

Use an Arkansas hone or a crocus cloth to remove the

burrs.

Check the top surface of the block for wear. If fretting

damage, scratches, cracks, or corrosion deeper than 0.08

mm [0.003-inch] are present in an area where a head

gasket seal ring or a grommet makes contact, the surface

must be repaired. There must not be any defect which

extends more than 2.41 mm [0.095-inch] from the edge of

the coolant passage.

Fretting damage in any other area is acceptable if it does

not change the protrusion measurement of the counter-

bore or the cylinder liner.

Refer to the Alternative Repair Manual, Bulletin No.

3379035, for machining instructions.

Use a 610 mm [24 inches] caliper to measure the height

of the cylinder block from the main bearing bore outside

diameter to the cylinder head deck surface.

Cylinder Block Height

mm in

421.87 MIN 16.609

422.45 MAX 16.632

If the height of the block is less than 422.12 mm [16.619

inches], a 0.25 mm [0.010-inch] oversize head gasket

must be used.

Cylinder Block - Cleaning and Inspection (01-02) Cylinder Block

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Comentários a estes Manuais

Jesus Morales 03 Apr 2025 | 23:07:31

Perfect..

CUMMINS N14 Especificações Página 188

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