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Home›Repair guides›Fuel Injector Installation

Perkins — Fuel Injector Installation

A Perkins service procedure — check it applies to your exact model before use.

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Before you start

  • Keep all parts clean from contaminants.
  • Ensure that Tooling (A) does not cover the body of the fuel injector below the threads.

Procedure

  1. Clean the bore for the fuel injector in the cylinder head. Ensure that no debris enters the cylinder. Clean the threads on the body of the fuel injector.
  2. Install new seat washers (2) into the bore for the fuel injector in the cylinder head.
  3. Apply a bead of Tooling (A) to the first two threads of the fuel injector that engage into the cylinder head. The bead should have a diameter of 2 mm (0.08 inch) and a length of 6 mm (0.25 inch).
  4. Install fuel injector (1) into the cylinder head. Use a deep socket to tighten the fuel injector to a torque of 64 N·m (47 lb ft).
  5. Install the fuel injection lines.

Tools required

  • Deep socket

Specs & torque values

  • Tooling (A): Universal Jointing Compound (POWERPART 1861117)
  • New seat washers
  • Torque: 64 N·m (47 lb ft)

Source: manual:Disassembly and Assembly-SM-PERKINS 400 SERIES 402D 403D 404D INDUSTRIAL ENGINE.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.