Perkins 1104 — Electronic Control Module - Remove and Install
Maintenance
For the Perkins 1104, from the Perkins service manual.
Applies to: Perkins 1104, Perkins N H1 (Engine) engine
Procedure
- Isolate electrical supply to engine.
- If ECM equipped with fuel supply, isolate fuel supply.
- Cut cable tie; disconnect machine wiring harness from ECM.
- Cut cable ties; disconnect engine harness from ECM.
- If equipped, disconnect plastic tube assemblies.
- Remove bolts and remove ECM assembly; note bracket positions and orientation.
- Remove bolts and washers from ECM; note ground strap position.
- If necessary, disassemble ECM: remove isolation mounts, spacers, connectors, O-ring seals, brackets.
- If replacement ECM installed, program with correct information.
- Ensure ECM clean and free from damage.
- If necessary, assemble ECM: install new O-ring seals to connectors, install brackets, install isolation mounts and spacers.
- Install washers and bolts to ECM.
- Install ECM assembly to mounting bracket; tighten bolts to 22 N·m (16 lb ft).
- Connect engine wiring harness; tighten bolt to 5 N·m (44 lb in).
- Connect machine wiring harness; tighten bolt to 5 N·m (44 lb in).
Tools required
- 27610296 Torque Wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 18.5 N·m (13.6 lb ft)
- 14 N·m (10 lb ft)
- 20 N·m (14 lb ft)
- 22 N·m (16 lb ft)
- 5 N·m (44 lb in)
Full service-parts list: Perkins 1104 →
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.