4000S Diesel L4-1588cc 1.6L DSL SOHC (JK) (1983)
Diesel MFI Pump: Description and Operation
Cam Plates and Cam Forms
Fig. 15 Plunger & roller
Besides driving the distributor-pump plunger, the cam plate, Fig. 15, also influences fuel-injection pressure and duration. The decisive criteria here are
cam stroke and lift velocity. These factors must be individually tailored to combustion-chamber configuration and type. For this reason, a special
cam-plate surface is developed for each engine type, and is mounted on the cam plate's end face.
Because the cam-plate surface is specific to a given engine type, it is not interchangeable with those of injection pumps for other engines.