300TD (123.193) L5-3.0L DSL Turbo (617.952) (1984)
8. Vent injection system. See: Service and Repair Run engine and check all connections for leaks.
C. Adjustment (low pressure method)
1. Swivel injection pump until fuel changes to droplets at overflow pipe. Formation of droplets:
One droplet per second.
Attention! While measuring, push regulating lever of injection pump to full load and pull vacuum hose from vacuum control unit.
Note: On pipe connections with relief orifice (2), no full fuel jet will come out of overflow pipe. However, measuring accuracy will not be
impaired.
Swivelling direction
toward engine = advances begin of delivery,
away from engine = retards begin of delivery.
Note: Injection pump will have to be relocated if adjustment is inadequate. See: Diesel MFI Pump/Service and Repair/Installation of
Injection Pump (With Locking Screw)