Kohler L600 / L654 — Engine Disassembly (General)
Repair & overhaul
For the Kohler L600 / L654, from the Kohler service manual.
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Before you start
- Keep the work area in cleanest possible condition at all times.
Procedure
- Remove drain plugs and allow ample time for complete drainage of fuel, coolant and lubricating oil; clean engine externally.
- Drain cooling system, disconnect hoses and belt guard, remove radiator.
- Disconnect governor linkage and remove governor.
- Disconnect choke linkage and hose, detach carburetor with air cleaner.
- Disconnect fuel lines, fuel filter and detach fuel pump.
- Remove high tension leads and remove magneto (or distributor).
- Remove oil filler cap, filter and bracket, dipstick, filler tube and oil gauge.
- Remove manifolds, then cylinder head and valves (tag valves by cylinder).
- Remove generator support, water pump and gear cover/gears.
- Separate crankcase from oil pan base.
- Remove oil pump, crankshaft, pistons and connecting rods, then camshaft and tappets.
Tools required
- spring compressor tool Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Kohler 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.