Cummins/Onan — Exhaust Manifold Removal
Repair & overhaul
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan HDKA, Cummins/Onan HDKAH, Cummins/Onan HDKAJ, Cummins/Onan HDKAK
Before you start
- Exhaust gas is deadly.
Procedure
- Disconnect negative battery cable.
- Remove top and back housing panels.
- Disconnect tailpipe.
- Remove flange bolts on both ends of flexible connector.
- Remove outboard bearing clamp and slide assembly right.
- Remove exhaust assembly.
Full service-parts list: Cummins/Onan HDKA →, Cummins/Onan HDKAH →, Cummins/Onan HDKAJ →, Cummins/Onan HDKAK →
Source: Cummins/Onan 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.