Volvo Penta — Checking the injection angle
Testing & diagnosis · Injection pump
From a Volvo Penta service manual — check it applies to your exact model before use.
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Before you start
- When using a Wilbar pipe check the control rod is not in the cold starting position (setting would be wrong by 10-12 degrees)
Procedure
- Disconnect the fuel pipe between the fuel filters and the feed pump.
- Loosen the front lubricating oil pipe from the injection pump and bend it out slightly.
- Remove the socket-head plug and washer so the no. 1 cylinder lifter is visible.
- Turn the engine to the compression position for no. 1 cylinder (0 degree mark).
- Turn the engine about a 1/4 revolution in the reverse direction; check the lifter is at its lowest.
- Fit the tool's screwed sleeve A to the injection pump without washer.
- Fit the dial indicator and fixture and set it to zero.
- Rotate the flywheel forward until the lift from base diameter is shown; read and compare the flywheel angle.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Lift from base diameter and setting angle per 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.