John Deere — Remove Cylinder Head
Repair & overhaul
From a John Deere service manual — check it applies to your exact model before use.
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Before you start
- Do not use screwdrivers or pry bars between cylinder block and cylinder head.
Procedure
- Drain all engine oil and coolant.
- Remove water manifold and all coolant lines.
- Remove carburetor and throttle valve assembly.
- Remove turbocharger and exhaust elbow.
- Remove aftercooler and intake manifold assembly.
- Remove exhaust manifold.
- Remove ignition wires and spark plugs.
- Remove rocker arm cover and ventilator hose.
- Remove rocker arm assembly and wear caps.
- Remove all 12 push rods and identify for reassembly.
- Remove all 26 cylinder head cap screws.
- Lift cylinder head from block.
- Remove cylinder head gasket.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Cylinder head cap screws: 100 N·m (75 lb-ft), then 125 N·m (95 lb-ft), then 90—100 degrees
Source: John Deere 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.