Volvo Penta — Injection pump installation
Repair & overhaul
From a Volvo Penta service manual covering: TAD530GE, TAD531GE, TAD532GE, TAD722GE, TAD730G, TAD732GE, TAD733GE, TD520GE, TD720GE, tAd731GE. Check it applies to your exact model before use.
Applies to: Volvo Penta TAD530GE, Volvo Penta TAD531GE, Volvo Penta TAD532GE, Volvo Penta TAD722GE, Volvo Penta TAD730G, Volvo Penta TAD732GE, Volvo Penta TAD733GE, Volvo Penta TD520GE, Volvo Penta TD720GE, Volvo Penta tAd731GE
Before you start
- Make sure that the injection pump linkage lever has entered the slot in the control rod before pushing it down.
Procedure
- When refitting pumps, place the existing roller tappets with their belonging shims.
- Turn the injection pump linkage lever to middle position.
- Make sure the injection pump cam for the cylinder is on the base circle.
- Turn the engine using tool 999 8681 or protractor 999 8679.
- Make sure the control rod is still in the stop position held with tools 999 8682 or 999 8684.
- Lightly oil the O-rings with lubricant 1141699 and carefully insert the pump.
- Check that the pump linkage lever has entered the slot in the control rod.
- Put the pump flange in place with the chamfered hole facing the pump; oil and tighten the screws evenly to 5 Nm.
- Back the screws off 60°.
- Turn the pump carefully counterclockwise with socket 11668403 and a torque wrench/gauge until torque increases by 1 Nm.
- Tighten the screws 60° clockwise, then alternately 7, 10 and 30 Nm starting with the screw furthest from the flywheel.
- Check that the control rod moves freely after each pump is installed.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Pump flange screws: 5 Nm then back off 60°
- Final: 7, 10, 30 Nm
- Torque increase at stop: 1 Nm
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.