Cummins/Onan — Camshaft Installation

Repair & overhaul

From a Cummins/Onan service manual covering: 205D3A, 3DJA, 3DJA-1E2236, 3DJA-3E2236. Check it applies to your exact model before use.

Applies to: Cummins/Onan DJA engine

Procedure

1. Install key and press camshaft gear on shaft.
2. Install governor components.
3. Slide thrust washer on shaft; measure endplay .007 to .039 in.
4. Insert push rod tappets.
5. Install camshaft assembly; align timing marks on camshaft and crankshaft gears.
6. Replace push rods and fuel transfer pump.
7. Install injection pump following steps.

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.

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