Volvo Penta — Vertical shaft, disassembly and assembly (lower gear housing)
Repair & overhaul
From a Volvo Penta service manual — check it applies to your exact model before use.
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Before you start
- The ferrule must always be changed when the shaft has been removed or when the pinion has been changed.
Procedure
- Remove the roller bearings with a knife extractor as counterhold, using a hydraulic press and suitable mandrel.
- Remove the ferrule with a knife puller as counterhold.
- Do not change the ground needle roller bearing race on the shaft; change the whole shaft if the roller bearing is damaged.
- Oil all components before or during assembly.
- Put a new ferrule on the vertical shaft.
- Install a new roller bearing with mandrel 884755, pressing until it touches the ferrule.
- Install the other roller bearing inverted (smaller end upwards) with mandrel 884755.
- Press so far that the bearings touch each other.
Tools required
- 884755 Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Volvo Penta 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.