Perkins — Fuel Injection Pump - Install
Repair & overhaul
From a Perkins service manual — check it applies to your exact model before use.
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Before you start
- The nut on the pump gear must not be loosened or injection pump timing will be lost.
Procedure
- Ensure the No. 1 cylinder is at top dead center on the compression stroke.
- Ensure all mating surfaces are clean and free from fluid.
- Install a new O-ring (1) onto the fuel injection pump.
- Install the fuel injection pump. Install new sealing washers and setscrews (2). Tighten to 22 N·m (16 lb ft).
- Align support bracket (4). Tighten fasteners (3) by hand. Secure after the front cover is installed.
- Install timing pin (6) through hub (7) into the fuel injection pump. Timing pin must be a hand push fit.
- Position fuel injection pump gear (5) through the timing pin onto hub (7). Install setscrews (8) hand tight. Rotate gear counterclockwise. Tighten to 25 N·m (18 lb ft). Remove timing pin.
- Loosen locking screw (10). Install spacer (9). Tighten locking screw to 31 N·m (22 lb ft).
- Install the electrical connecting plug (11).
Specs & values
- 22 N·m (16 lb ft)
- 25 N·m (18 lb ft)
- 31 N·m (22 lb ft)
Source: Perkins 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.