AIR CLEANERS AND FUEL SYSTEM-N.6 To Refit the Fuel Injection Pump The checking of the scribed line on the fuel pump and drive housing mounting flanges can be checked by means of special tool MS67B (see Fig. N.12) as follows :- 1. Replace the fuel pump mounting flange Joint (where necessary). 2. Offer up the pump as shown in Fig. N.10 ensuring that the master spline on its quill shaft is correctly positioned to engage with the female splines within the fuel pump drive hub. NOTE: This master spline ensures that the pump will only locate in the drive hub in one position for timing purposes. To Check Engine Marking Angle on Fuel Pump Drive Housing 1.
Turning engine in normal direction of rotation, position No.1 piston at TD.C. compression stroke by means of the timing pin or pointer. 3. When the splines are in correct alignment the pump can be pushed in until the mounting flanges meet and the securing nuts and setscrew with their washers can be fitted. 2. Remove fuel injection pump. 4. Before tightening, align the timing marks scribed on the fuel pump mounting flanges as shown in Fig. N.11. Tighten the setscrew and nuts. 5. Refit the low pressure pipes to the inlet and outlet connections. 6. Refit the high pressure fuel pipes. 7. Reconnect the throttle and stop controls together with their return springs. 8.
Prime the fuel system with fuel oil as detailed on Page N.10. 9. Fuel pump timing can be checked as detailed in the following text. N11 FUEL INJECTION PUMP TIMING Reference should be made to the details given on Page K.1 covering engine timing. If this timing sequence has been followed regarding the timing gears and the timing marks on the mounting flanges are correctly aligned as shown in Fig. N.1 then the fuel pump timing should be correct. 3. Release screw (5, Fig. N.12) and position splined shaft (6) in tool so that relevant spline is to front of tool. 4. Ensure that slotted pointer (2) is positioned with slot to front of tool and chamfered sides of slot outwards. At this stage.
slotted ends of pointer should be kept well back from front of body. Ensure that flat in washer fitted behind pointer securing screw (3) is located over pointer. 5. Release bracket screw (4) and set bracket so that the chamfered edge is in line with the relevant engine checking angle (see Page B.12). N10 N12