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Cummins/Onan — Service Procedure

For these Cummins/Onan models: 3.6MKY, 4MKY.

Applies to: Cummins Onan 3 6Mky, Cummins Onan 4Mky

Before you start

  • Inspect the rotor shaft for dirt or corro-
  • Heating the rotor bearing for re-
  • Cooling air can contain poisonous

Procedure

  1. Measure and record the distance between the
  2. Use a small puller with grips that will fit between
  3. Place the rotor, engine end down, in an arbor
  4. Refer to the measurement taken in Step 1.

Tools required

  • 2. Use a small puller with grips that will fit between

Source: manual:981-0531 Onan MKY Spec J Pontoon Service Manual (8-1999).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.