Perkins — Cylinder Head - Install
Repair & overhaul
From a Perkins service manual — check it applies to your exact model before use.
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Before you start
- Do not damage gasket surfaces; ensure no debris enters cylinder bores.
Procedure
- Thoroughly clean gasket surfaces of cylinder head and block.
- Inspect gasket surface of cylinder head for distortion.
- Inspect dowels for damage; replace if necessary.
- Install guide bolt to cylinder block.
- Align and install new cylinder head gasket.
- Lift cylinder head using suitable lifting device.
- Use guide bolt to align and install cylinder head.
- Clean Torx bolts; inspect length and threads.
- Lubricate threads and shoulders of Torx bolts with clean engine oil.
- Install Torx bolts to cylinder head.
- Remove guide bolt; install remaining Torx bolts.
- Tighten Torx bolts (2) to 130 N·m in sequence.
- Tighten Torx bolt (1) to 65 N·m in sequence.
- Turn Torx bolts (2) 90 degrees, then 70 degrees; Torx bolts (1) 90 degrees, then 60 degrees.
- Install injectors, glow plugs, rocker shaft, exhaust manifold, and cooling system.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 130 N·m Torx bolts (2)
- 65 N·m Torx bolt (1)
- 90° and 70° for Torx bolts (2)
- 90° and 60° for Torx bolts (1)
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.