Checking and setting start of fuel delivery b. Plug−in sleeve ш15 Fig. 8 If a light signal transmitter is not available, good measurement results can also be achieved with a plug−in sleeve. The sleeve must be made from aluminium or steel following the dimensions specified in the drawing (Fig. 8). Set the engine to start of delivery as described above. Insert the sleeve into the governor housing up to the stop. 29 30 15 The start of delivery is set exactly when the start− of−delivery indicator is in the centre of the 3 mm bore in the sleeve. 8 26 ø12 ø9 ø9 13 ø11