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Daniel Wilson
Daniel Wilson,
Category: Heavy Equipment
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How can I set the valves and injectors on a ISX 500 cummins

Customer Question

How can I set the valves and injectors on a ISX 500 cummins
Submitted: 1 year ago.
Category: Heavy Equipment
Expert:  Daniel Wilson replied 1 year ago.

Hi my name is***** will be glad to help. always confirm the settings( specs on the engine tag itself to the one in the manual and use those)

The intake valve rocker lever is always the long lever on the valve rocker lever shaft.

Valve Lash Specification

IntakeNOM0.014

ExhaustNOM0.027

Tighten the injector lever adjusting screw.

Do not use a click-type torque wrench.

Use a dial-type torque wrench

Torque Value:8 n.m[71 in-lb]

Engine Brake7.00 mm [0.276 in]

Loosen the locknut on the brake lever adjusting screw, and back out the adjusting screw one turn.

Insert the feeler gauge, Part Number(###) ###-####SPECIAL TOOL FROM CUMMINS , between the bottom of the engine brake piston and the top of the exhaust valve pin on the exhaust valve crosshead.

The valves, brakes, and injectors on the same cylinder are adjusted at the same index mark on the vibration damper.

njector and Valve Adjustment Sequence

Bar Engine in Direction of Rotation

Pulley Position -Set Cylinder Injector- Set Cylinder Valve -Set Cylinder Brake

Start A-1-1-1

Advance to B-5-5-5

Advance to C-3-3-3

Advance to A-6-6-6

Advance to B-2-2-2

Advance to C-4-4-4

Firing Order: 1-5-3-6-2-4

Expert:  Daniel Wilson replied 1 year ago.

Be sure to use a dial type torque wrench on the injectors. Use the compressor drive or barring device to bar the engine over in the direction of engine rotation, clockwise as viewed from the front of the engine. Align the A mark on the vibration damper with the pointer on the gear cover. The cover is flat look for the raised line on the cover by the oil fill hole on the cover. The reason you cannot use a click type is it is not accurate