Volvo Penta — Injectors, changing
Repair & overhaul
From a Volvo Penta service manual — check it applies to your exact model before use.
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Before you start
- Fuel delivery pipes are clamped together; do not take off the clamps but remove the pipes as one.
- Fuel delivery pipes must never be bent or altered; a damaged pipe must always be replaced with a new one.
Procedure
- Clean around the injectors and pipe connections.
- On 710 and 730 engines remove the exhaust temperature sensor from the exhaust manifold.
- Remove the leak-off pipe between the injectors and plug the connections.
- Remove the fuel delivery pipes and plug the connections.
- Remove the nuts from the injector holders and remove the holders.
- Remove the rubber seals from the injectors.
- Turn the injectors out with a ring spanner RSp-15, pulling upwards; use puller 6643 if necessary.
- Fit new injectors with new rubber seals, holders, leak-off pipe and delivery pipes; start and check for leakage.
Tools required
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.