John Deere — Remove Pistons and Connecting Rods
Repair & overhaul · Cylinder block, liners, pistons and rods
From a John Deere service manual — check it applies to your exact model before use.
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Before you start
- Keep matched pistons and liners together as a set.
Procedure
- Drain all coolant and engine oil.
- Disconnect turbocharger oil inlet line.
- Remove cylinder head.
- Remove oil pan and oil pump.
- Remove crankshaft if desired.
- Bolt down cylinder liners using cap screws and flat washers. Tighten to 68 N·m (50 lb-ft).
- Remove carbon from liner bore with scraper or ridge reamer.
- Remove rod cap screws and rod caps with bearings.
- Gently tap piston through top of cylinder block from the bottom.
- Remove piston snap rings, piston pins, and connecting rods from pistons.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Cylinder liner cap screws for checking standout: 68 N·m (50 lb-ft)
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.