Diesel Bleeding and Priming Kit

Diesel Bleeding and Priming Kit
Designed to allow the user to bleed or prime the low pressure feed side of the diesel fuel system.
Warning! do not attempt to use this kit on high pressure circuits
Modern diesel engines need to generate up to 2000+ bar of fuel pressure to run efficiently. Any air in the fuel delivery system will affect the running of the engine. When the fuel system is being serviced and a new fuel filter is fitted air will be introduced into the system. Most modern systems are either self bleeding or have a hand pump permanently fitted to the vehicle, however many can still take some time to purge the system of any air.
There are two basic types of fuel delivery used on modern diesel engines
Pressure fed – using an electric fuel pump mounted in the tank to push the fuel up to the high pressure pump.
Vacuum fed – using an engine driven lift pump to generate a vacuum that pulls the fuel up to the high pressure pump.
This kit has been developed to allow the user to connect into as many diesel fuel systems as possible using the correct style connector coupling.
Instructions
Identify the best place to break into the vehicles low pressure fuel circuit. For Bleeding/ Purging the system after a filter change Weber Tools recommend connecting in to the system before the fuel filter housing.
Select the appropriate pair of pipes to connect into the system.
For PSA (Citroen/Peugeot) systems that use 10mm connections only the double ended 10mm male pipe is required to convert one connection to male.
All the pipe pairs are equipped with one male 10mm PSA end to allow connections to the pump unit.
Ensure the direction of flow on the vehicle matches that for the pump unit.
Loosen the 19mm hex nut on the Bleed Valve enough to allow the button in the valve to move up and down by about 2mm.
Compress the pump bulb with one hand and hold.
Push the button on the bleed valve in so the bleed valve shuts and now release the pump bulb.
Repeat the above process till the fuel fills the bulb.
Once fuel is seen exiting the pump close the bleed valve completely by tightening the 19mm hex (ensure the button sits square in the valve).
Ensuring that the vehicles filter bleed screw is open or air return pipes are disconnected continue pumping till fuel is seen exiting the bleed screw or air return system.
Continue pumping fuel until clear solid fuel is seen in the fuel filter exit pipes.
Applications
The kit has connections that allow fitment to most of the connection types found on today’s diesel vehicles. There are a total of six different connection types included in the kit covering Ford, PSA, GM, Fiat, Rover, Land Rover, Renault and Mercedes-Benz.