Golf L4-1588cc 1.6L DSL SOHC Turbo (1985)
A portion of the fuel flows through the pressure-control valve and returns to the suction side. For cooling and self-ventilation of the distributor
injection pump, some fuel also flows through the overflow restriction on the governor cover and back to the fuel tank.
Supply Pump
Fig. 3 Supply Pump
The supply pump, Fig. 3, surrounds the input shaft, its impeller concentric with the shaft and driven by a Woodruff key. In turn, the impeller runs
inside an eccentric ring fixed to the housing.