Jetta L4-1588cc 1.6L DSL SOHC Turbo (1985)
Diesel MFI Pump: Description and Operation
General Functions
Fig. 1 Diesel Fuel Injection Pump
The Type VE distributor pump has only a single pump-cylinder and plunger regardless of the number of cylinders the engine has. Fuel delivered by
the plunger is apportioned by way of a distributor groove to a number of ports corresponding to the engine's number of cylinders. The distributor pump's
housing contains the following functional groups:
High pressure pump with distributor, Mechanical governor, Hydraulic timing mechanism, Vane-type supply pump, Shutoff mechanism.
Fig. 1 shows these groups and their functions. The distributor pump can also be equipped with various supplementary functions to accommodate
specific engine characteristics.
