Here it is gang the Bosch VP44 Injection Pump fully disassembled. Here is the rotor and injection pump assembly. I stood the rotor assembly up and pull the pistons out of the rotor. Yes, these pins are the 3 pistons pumping together to create the high pressure.  This of course, is the main shaft, vane pump and cam ring. Take notice to the 3 rollers and shoes below the main shaft. These 3 roller shoes ride in the slots of the main shaft and roll around inside the cam ri