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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

Procedure

  1. Remove the genset from the installation and
  2. Remove the bolts securing the flexible exhaust
  3. Remove the screws securing the muffler to the

Tools required

  • new exhaust flange gasket and torque to specifica-

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.