Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to Disassemble a Diesel Injection Pump

Model: (Various brands) Various
Part: Pump

This is a specialised procedure: it is a guide to disassemble a diesel injection pump (Bosch V.E. type) for refurbishment. However, this is not a garage job; it requires a well-equipped workshop and expensive special tools (support kit, pump testing equipment, comparators). The procedure, which is hyper-detailed in the video, follows this logical path: secure the pump on a special support; disassemble all regulators (centrifugal, solenoid, wax actuator); disassemble the distribution head and the delivery valves; extract the central plunger and the adjustment levers; disassemble the camshaft and the phase variator; disassemble the internal feed pump (vane type). The ultimate goal is to strip the pump completely for inspection, replace worn parts, and adjust on the bench. It is a very complex operation due to micrometric tolerances: the parts work with thicknesses of tenths of a millimetre; even a bit of dust or a scratch can ruin it. Every component affects the assembly order, which is crucial to avoid damaging anything.

Posted on 8 February 2026 by ScegliAuto

Video tutorial

Related tutorials

Procedure to Bleed Air Trapped in the Diesel Fuel System
Procedure to Bleed Air Trapped in the Diesel Fuel System
(Various brands) Various In this video tutorial, you can see the procedure to bleed air trapped in the diesel fuel system. If air remains in the fuel system, it will be impos…
What happens if we put the wrong fuel in the tank?
What happens if we put the wrong fuel in the tank?
(Various brands) Various What happens if you put the wrong fuel in? Scenario 1: petrol in a diesel engine. This is the most serious scenario, as petrol is drier than diesel a…
What to do if we put dirty diesel in the tank of our diesel vehicle
What to do if we put dirty diesel in the tank of our diesel vehicle
(Various brands) Various Unfortunately, it can happen that dirty diesel fuel ends up in the tank of our diesel vehicle, meaning contaminated with water, sediments, bacteria o…

Other guides you may be interested in

How to Open the Bonnet on the Lancia Y

To open the bonnet on this vehicle, follow these simple instructions: first, open the driver's door and locate the lever positioned just below the dashboard, marked with an image of the vehicle with the bonnet open. Pull this lever towards you until you hear a "click" indicating the bonnet is released. Next, exit the cabin and stand in front of the bonnet to disengage the safety catch and complete the opening. To do this, slightly lift the bonnet, locate the yellow lever underneath, and pull it to the left to fully release and open the bonnet.

Watch the video!


by ScegliAuto

More videos