FUEL SYSTEM

The GMC engine uses it's own lift pump, but it has no facility to bleed the system if it is totally empty, therefore I plumbed in the existing original Facet pump that was fitted with the petrol engine.

The original fuel lines where used, but the return line to the tank has a little restriction in the rear tank fitting, this was drilled out.
The return line consists of a pipe from the left head across to the right head, and back to the tank, there is no pipe linking the return to the filters (As is the case with early Land Rover Diesels), the injector pump also has a return line that T's into the left-to-right return pipe.

I fitted a dual Lucas/CAV filter head with a sediment bowl below the second filter. The filter element was sourced from a truck scrap yard. The filter elements are standard GUD G629 as used in the series 2 and 3 diesel engines.

The filters are connected in parallel for an increased fuel flow. A single filter or two in series will not permit sufficient fuel flow.

The system needs to be bled when empty.