No fuel out of injectors

Measure your control pressure first.

 

If the pressure is good at the rails, do you have 12 volts dc at the injectors? Are both banks affected? Put your voltmeter red probe on the power pin and the black probe on a suitable engine earthing point.

I don't have a wiring diagram for the Mondial (T?), but normally injector relay/s provide power to the injectors and the ECU/s provide an earth to individual injectors.

 

I believe he has a Mondial with CSI. No fuel rails. The key is "press down on the pressure plate".

 

Looks like you are short of pressure- you have flow with no injector but not enough when you fit it. If i remember correctly i think there is a non return valve in the outlet line of the pump

 

Ian, from what he was describing, it looks like a CIS system so there is no injector wirings.

 

Thanks, guys, this car is older than I thought.

 

It is almost only mechanics .. so measure system pressure and control pressure by inserting a valve and gauge between distributor and warmup regulator. I found it easier to disconnect at the wur side.

System pressure when valve is closed 5 bar approx when fuel pump is running. Then open valve and check that control pressure rises slowly as the heating element in the wur warms up.

 

Yes, on the K-Jets, the fuel pressure regulator is part of the fuel distributor so has to be something bad there or something like the return line to the tank is blocked. Long disuse is never good for CIS as there are a bunch of very small clearances/orifices/fits so getting it refreshed won't be a waste. Larry Fletcher at CIS FlowTech in Alabama is the US rebuilder (i.e., many places may advertise rebuilding CIS components, but most are just sending them to Larry). Best to call him or send him a text (email, or even his website contact form, isn't a priority).

 

Disconnect the return line to the tank and rig up a hose to a container , see if you get any flow and a drop in your pressure

 

The pressure regulator can be checked next by unscrewing it from the FD. Fig 12 D14 page in the Mondial WSM.

Of course, it needs to be set to correct pressure then, but that should be easy using the gauge.

Are you sure the gauge reading is ok? You might want to verify it with an air compressor set at 5 bar and some white spirit in the lines to the gauge.

Caution of course use eye protection and no open flames or sparks ...

 

It sound like your fuel distributor is clogged with varnish from old dried out fuel. I would first make sure that your fuel tanks are flushed out, and you have a new fuel filter installed. Varnish will tend to collect in the fuel filter.

The best thing I've found to remove the varnish is Techron. Fill up the fuel distributor, and all fuel lines with pure Techron, and let that sit in there for a couple of days. That should help clean out the system.