Facts About Generators
GeneratorsDirectoryCompareRepairEnginesControllersPartsManufacturersGuides
Search models or part #
Home›Repair guides›To disassemble the engine for valve or piston service, follow the out—

Cummins/Onan — To disassemble the engine for valve or piston service, follow the out—

For these Cummins/Onan models: FM-JFE2, Model Not Specified.

Applies to: Cummins Onan Model Not Specified

Procedure

  1. 1. Drain all water from the radiator and engine.
  2. 2. Remove the radiator outlet and inlet.
  3. 3. Disconnect fuel line to carburetor.
  4. 4. Remove air cleaner and choke assembly.
  5. 5. Disconnect governor arm at carburetor.
  6. 6. Remove carburetor and intake manifold.
  7. 7. Disconnect ignition wires and remove spark plugs.
  8. 8. Remove magneto assembly.
  9. 9. Remove tappet cover
  10. 10. Remove cylinder head nuts and lift cylinder head from the block.

Source: manual:902-0000 Onan W3S W3S-19 Genset Operator, Parts & Service Manual (1945).pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.