Removing and installing the rocker levers

Stripping the camshaft assembly Fig. 87 Pull the cams (87/1,2), gear (87/3), spacer (87/4), gear (87/5) with counterweight and needle-bearing outer race, inner race (87/6) and spacer (87,7) singly, one after the other, from the camshaft (87/8). Note: If necessary, heat the inner race to approx. 70~800 C.

Assembling the camshaft assembly Note: Push the spacer (87/7) and the inner race (87/6) on to the camshaft. In necessary, exchange the needle-bearing outer race in the gear (87/5) and press the gear, with the counterweight facing rearwards, on to the camshaft. Place the spacer (87/4) in position and press the gear (87/3) on, with the “0” mark facing the counterweight. Press on the wide cam (exhaust) (87/2), with the chamfered side of the hole facing the gear. Press the narrow cam (intake) (87/1), with the recesses facing the exhaust cam, on to the camshaft.

REMOVING AND INSTALLING THE ROCKER LEVERS

Removing the rocker levers

— Remove the camshaft assembly Fig. 88 Screw out the socket-head screw (88/1) and take the rocker levers (88/2) together with the rocker lever bracket (88/3) out of the crankcase.

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