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55. To remove camshaft (Fig. 10)
(a) Drain oil from the sump
(b) Drain and remove the fuel tank Remove the fuel pipes placing them in
clean fuel (see 'Fuel system'). Remove fuel injection pump. Cover
holes in injector against admission of dirt. etc.
Remove any starting arrangement or fitting from the gear cover.
(c)
Remove the gear cover.
(d)
fig.10
(e) Remove the rocker cover, rocker support and rocker assembly and
withdraw the push rods
(f) Turn the engine onto its side to prevent the tappets from falling into the
sump
(g) Remove the extension shaft from the camshaft gearwheel, if fitted.
(h) Remove the screws (A) retaining the camshaft thrust plate These
are accessible through holes in the gearwheel. Withdraw the camshaft
and gearwheel assembly from the gear end of the engine
The gearwheel is a tight fit on the camshaft. To fit a new thrust plate
(i)
remove the gearwheel retaining bolt and press the shaft from the
gearwheel The gearwheel is keyed to the shaft.
56. Camshaft maintenance
(a) Carefully examine the faces of the cams. If these are worn or chipped it
will be necessary to fit a new camshaft.
Fig. 9
36
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