Checking and adjusting start of fuel delivery Adjusting start of delivery If the check according to method a) or b) should prove that the delivery start is not correct, proceed as follows: Figs. 9 and 10 To adjust the start of delivery, the injection pump drive must be made accessible. For this purpose the fuel filter is to be removed. Close shut-off valve from tank to engine. Loosen all fuel lines and completely remove filter with collector pan. 9 Caution: The filter cartridges contain fuel. When putting aside the filter, catch emerg- ing fuel in a suitable container. 10 Fig. 11 Remove timing case cover. Note: Pipelines are attached to the timing case cover.
To facilitate reassembly, memorise or make a drawing or photograph of the positions of holders, pipe clamps, spacer sleeves etc. 11 Fig. 12 Turn engine to specified angle for delivery start. Cylinder 1 is at ignition TDC if the valves of the following cylinders are in crossover: in 8-cylinder engines: cylinder 6 in 10-cylinder engines: cylinder 7 in 12-cylinder engines: cylinder 6 Carry out check by taking off valve cover. 12 30