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Generac 4700 / QuietPact 40 — Engine Removal

Repair & overhaul

For the Generac 4700 / QuietPact 40, from the Generac service manual.

Applies to: Generac 4700, Generac QuietPact 40, Generac GH-220 engine

Procedure

  1. Remove enclosure, Steps 1 through 8.
  2. Disconnect Wire 16 from starter terminal; disconnect Wire 18 bullet connector.
  3. Disconnect Wire 0 and Wire 4 from brush assembly; disconnect Connector 1 from choke assembly.
  4. Disconnect Wire 85 and Wire 0 from low oil pressure switch and high oil temperature switch; move harness aside.
  5. Remove air filter; remove fuel hose from fuel pump and pull through panel divider.
  6. Remove two safety hold nuts from studs through alternator and engine mounting brackets (14mm wrench).
  7. Remove four mounting nuts from alternator mounting bracket and engine mounting bracket (13mm socket).
  8. Remove engine/alternator assembly; follow rotor/stator removal to separate generator from engine.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Full service-parts list: Generac 4700 →, Generac QuietPact 40 →

Source: Generac 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.

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