Perkins — Inlet Manifold - Remove and Install

Repair & overhaul

From a Perkins service manual — check it applies to your exact model before use.

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Procedure

1. Loosen the hose clamps and disconnect air hose (1) from connection (2).
2. Slide locking tab to unlocked position and disconnect harness assembly (4) from inlet manifold pressure sensor (3).
3. Disconnect harness assembly (4) from inlet manifold temperature sensor (6).
4. Loosen clamp (5) and remove connection (2) from inlet manifold (7); mark orientation.
5. Remove O-ring seal (9) from inlet manifold (7).
6. Remove fasteners (8); note position of the brackets retained by the fasteners.
7. Remove inlet manifold (7) from the cylinder head.
8. Remove gasket (10).
9. Place a new gasket (10) in position on inlet manifold (7).
10. Position inlet manifold (7) on the cylinder head.
11. Install fasteners (8) with brackets in correct positions. Tighten to 55 N·m (41 lb ft).
12. Install a new O-ring seal (9) to inlet manifold (7).
13. Install connection (2) and clamp (5) to inlet manifold (7); tighten clamp to 14 N·m (10 lb ft).
14. Connect harness assembly (4) to pressure sensor (3) and temperature sensor (6).
15. Connect air hose (1) to connection (2) and tighten the hose clamps securely.

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.

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