Volvo Penta — Injection pump, fitting (610, 630 with flange mounted pump)
Repair & overhaul
From a Volvo Penta service manual — check it applies to your exact model before use.
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Before you start
- Do not remove the protective plugs from the injection pump before fitting the pipes.
- After loosening the attachment nuts, turn the pump first in the camshaft direction of rotation and then against it.
Procedure
- Check that the pump and governor are filled with oil; use new copper washers.
- Set the injection pump camshaft so the broken line points to the upper edge of the oval hole.
- Fit a new sealing ring on the injection pump guide flange.
- Fit and bolt down the pump with studs centred in the oval holes.
- Fit tool 6848 and a dial indicator in contact with the 1st tappet.
- Zero-set the dial indicator and turn the camshaft to the specified lift from basic circle.
- Fit the pump gear flange and torque-tighten the bolts to specification.
- Fit delivery pipes, fuel/oil pipes, linkages, bleed the system and check for leakage.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Lift from basic circle per Workshop Manual Technical Data
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.