Caterpillar 320C / 320C EXCAVATOR GNG — Fuel Injection Pump - Install
Repair & overhaul
For the Caterpillar 320C / 320C EXCAVATOR GNG, from the Caterpillar service manual.
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Before you start
- Keep all parts clean from contaminants.
Procedure
- Use lifting sling and hoist to secure fuel injection pump (8). Weight is 13 kg (29 lb).
- Install a new gasket and install fuel injection pump (8).
- Ensure engine is in top center position on No. 1 piston.
- Ensure mark on front plate (3) and mark on fuel injection pump flange (4) are aligned.
- Install washers and bolts (9) securing fuel injection pump to engine cylinder block.
- Remove sling from fuel injection pump.
- Connect oil line (6) to nipple (7).
- Tighten fitting (5) for oil line (6).
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 88 ± 5 N·m (65 ± 4 lb ft) fuel injection pump drive gear nut if removed
Source: Caterpillar service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.