CUMMINS N14 Especificações descarregar pdf (Página 133)

100

101

With the ‘‘A’’ set mark aligned with the pointer on the gear

cover and both valves closed on cylinder No. 5, loosen

the lock nuts on the intake and the exhaust valve adjust-

ing screws.

Select a feeler gauge for the correct valve lash

specification.

Valve Lash Specifications

Intake Exhaust

0.35 mm 0.68 mm

[0.014-inch] [0.027-inch]

Insert the feeler gauge between the top of the crosshead

and the rocker lever nose.

Two different methods for establishing valve lash clear-

ance are described below. Either method can be used;

however, the torque wrench method has proven to be the

most consistent.

• Torque Wrench Method: Use theinch pound torque

wrench, Part No. 3376592, (normally used to set

preload on STC injectors), and tighten the adjusting

screw.

Torque Value: 0.56 to 0.68 N•m [5 to 6 in-lb]

• Feel Method: Tighten the adjusting screw until a

slight drag is felt on the feeler gauge.

Hold the adjusting screw in this position. The adjusting

screw must not turn when the lock nut is tightened.

Tighten the lock nut.

Torque Values:

With torque wrench adapter, 54 N•m [40 ft-lb]

Part No. ST-669

Without adapter 68 N•m [50 ft-lb]

Engine Assembly (00-02) Injector and Valve Adjustment

N14 Page 0-113

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Comentários a estes Manuais

Jesus Morales 03 Apr 2025 | 23:07:31

Perfect..

CUMMINS N14 Especificações Página 133

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