Perkins — Cylinder head assembly - to remove
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 use a lever to separate the cylinder head from the cylinder block.
Procedure
- Drain the cooling system and disconnect the battery terminals.
- Remove the air filter/cleaner hose (at the turbocharger compressor inlet where fitted).
- Remove the induction manifold and the exhaust manifold.
- Remove the turbocharger where fitted.
- Remove the low pressure and high pressure fuel pipes and the atomiser leak-off pipe.
- Remove the atomisers and fit covers to the nozzles and open connections.
- Remove the coolant by-pass connection and disconnect the coolant temperature sender unit.
- Remove the oil cooler where fitted.
- Remove the rocker cover and the rocker assembly; remove the push rods.
- Release the cylinder head setscrews evenly and gradually in the reverse tightening sequence.
- Remove the cylinder head and put it on a surface that will not damage its face.
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.