Final check

• Secure dial gauge (A) on plunger (C). Ensure that gauge is fitted with a preload of 10 - 15 mm, then zero.
• Turn pump in its slots to move top of pump away from the cylinder assembly (maximum delay position).
• Turn the crankshaft in its direction of rotation until piston no. 1 is turned exactly to TDC.

Never turn crankshaft against its direction of rotation. Otherwise tool or pump may be damaged.

• Read distance off dial gauge. Then turn pump slowly in its slots until dial gauge shows exact fitting distance indicated on pump label (e.g. 8.52 mm).
• Now tighten pump retaining screws fully.

Final check

• Turn crankshaft in its direction of rotation by a few revolutions (at least 2) until piston no. 1 is exactly at TDC. The dial gauge reading should correspond to the reading printed on the pump label. Otherwise, repeat procedure described above with greater accuracy.

POSSIBLE ADJUSTMENTS ON INJECTION PUMP FITTED TO ENGINE

Before adjusting pump, engine must be at service temperature, i.e. radiator cooling fan must have come on at least twice.

Anti-stall speed adjustment

1. Interpose a spacer measuring exactly 2 mm between anti-stall adjustment screw (2) (see figure on previous page) and accelerator control lever.
2. Turn on engine and adjust speed to 1600 ± 100/min, using a socket wrench to turn anti-stall adjustment screw (2).
3. Remove 2 mm spacer.