3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Caterpillar


Fuel Injection Valves (Precombustion)

Usage:

Remove Fuel Injection Valves (Precombustion)

START BY:

a. remove valve covers

1. Disconnect the glow plug wire from the glow plug and clip (2) from fuel line (1). Remove line (1) with tool (A).


NOTICE

Put protection caps on all fuel line openings.


2. Remove nut (5) that holds valve (3) in precombustion chamber (4).

3. Remove valve (3) with tool (B).

Install Fuel Injection Valves (Precombustion)

1. Install nozzle (1) on valve body (2) finger tight.

2. Install injection valve (4) and nut (3) in precombustion chamber (5). Make sure the grooves (serrations) on valve (4) are in alignment with the grooves (serrations) in chamber (5).

3. Tighten nut (3) to a torque of 75 ± 7 N·m (55 ± 5 lb.ft.).

4. Install the fuel injection line to fuel valve (4). Tighten the nuts to a torque of 40 ± 7 N·m (30 ± 5 lb.ft.) with tool (A).

5. Connect the glow plug wire to the glow plug and clip to the fuel line. Make sure the wire is clear of the valve springs.

END BY:

a. install valve covers

Caterpillar Information System:

3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Glow Plugs
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Lines
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3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Precombustion Chambers
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3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Nozzle Adapters (Direct Injection-Earlier)
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Nozzle Adapters (Later)
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Nozzles And Adapters (Later)
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3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Pumps
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3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Pump Housing And Governor
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Fuel Injection Pump Housing
3408 VEHICULAR ENGINE FOR 768C TRACTOR & 769C TRUCK Governor
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