Fuel pumping apparatus

A fuel pumping apparatus for supplying fuel to a multi-cylinder internal combustion engine comprising a pump plunger slidable within a bore, an outlet from said bore, a drive shaft rotatably mounted within a housing of the apparatus and arranged in use to be driven in timed relationship with an associated engine, first cam means carried by the drive shaft for imparting inward movement to the plunger, valve means for controlling the quantity of fuel displaced through said outlet during the inward movement of said plunger, a pair of fuel outlets in the housing connected in use, to fuel injection nozzles respectively of the associated engine, a distributor member mounted in the housing, drive means connecting the distributor member and the drive shaft whereby the distributor member operates in timed relationship to connect the outlet from the bore to said fuel outlets in turn during successive inward movements of the plunger, said drive means comprising further cam means carried by said shaft, a pair of rollers engaging said further cam means, said further cam means defining a pair of opposed cam profiles, said rollers engaging said cam profiles respectively, a pair of levers mounting the rollers respectively, a pivot post about which the levers can pivot, means adjustably mounted on the distributor member and engaged by one of said levers, a pin carried by one of the levers and an aperture in the other lever, said pin being located in said aperture but being slightly smaller than said aperture to allow limited relative movement of the levers, and resilient means acting on the levers in a direction to urge the rollers into contact with the respective cam profiles, whereby as the drive shaft is rotated axial movement will be imparted to the distributor member, said further cam means being arranged so that the distributor member during each revolution of the drive shaft connects the outlet from the bore to each of said fuel outlets in turn.