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Home›Repair guides›NOZZLE REPAIR

Cummins/Onan 20W-20 — NOZZLE REPAIR

For the Cummins/Onan 20W-20.

Applies to: Cummins Onan 20W 20

Procedure

  1. Clamp nozzle holder body in a vise.
  2. Set valve in body and set nozzle over it.
  3. Install nozzle cap nut loosely.
  4. Place centering sleeve over nozzle for initial tightening. Then remove centering sleeve to prevent it from binding between nozzle and cap nut.
  5. Tighten nozzle cap nut to 50-55 ft.-lbs. (68-75 N»m).

Source: manual:974-0251 Onan RDJF Engine Service and Parts Manual (3-1980).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.