Injection pump operation on engine

INJECTION PUMP OPERATION ON ENGINE

Fitting pump and checking advance on engine

Tools required: n° 1865091000 comprising probe stylus (C), mount (B) and centesimal dial gauge (A) no. 1895885000.
Pump must also bear label (E) glued to the top. Above this is the installation gap in mm.

Fitting injection pump

First of all, check accuracy of timing as a precaution:

• Move piston of first cylinder to a position close to TDC.
• Fit injection pump (D) to its mount. Ensure ridge on pump gear is aligned with inner pump drive shaft splines but do not tighten nuts retaining pump to mount fully.
• Remove aluminium cap with fitting for socket wrench from fitting on top of pump.
• Turn crankshaft against direction of rotation through about 20°.
• Tighten tool (B) with probe (C) and dial gauge (A) into the threaded seat on top of the pump.

NOTE In this position, probe (C) will come into contact with a seat in the pump and not against pump distributor (or rotor).
The distance between pump seat and the position of a distributor (or rotor) drive dowel is used to achieve correct pump setting on engine: when pump is turned, probe touches drive dowel. The above fitting distance is indicated on label (E) attached to each pump.

1. A. Dial gauge.
2. B. Tool 1865091000 for checking advance.
3. C. Probe plunger.
4. D. Injection pump.
5. E. Label with fitting gap.