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(b) Ensure that the fuel pump lever fork end is correctly located on the fuel
pump rack ball (S)
(c) Before replacing the overload stop assembly, adjust the governor
linkage to the correct position as follows:
(i) With the governor bracket screw (E) loose, make sure that the
governor bracket fork ends are hard against the governor thrust
bearing when the faces of the governor sliding and rotating
housings are together.
(ii) Push the fuel pump operating lever as far as possible to the fuel
pump fully open position
(iii) Tighten the governor bracket locking screw.
(iv) Check the setting (X) between the operating shaft bush and the
operating lever with a feeler gauge. This should be 0.010 in
(0.25mm)
(v) Replace the overload stop assembly.
(d) If the overload stop mechanism has been moved on AC1W engines, or
the overload stop cam moved on its spindle on AB1W engines, the
overload setting will have to be checked. For procedure, see: To fit
new fuel injection pump'
(e) If the speeder spring adjuster on variable speed engines has been
disturbed, check the distance from the crankcase boss to the end of
the adjuster, this should be 5/8in (16mm).
63. Lubricating oil system (Fig. 13)
(a) The lubricating oil system is as follows:
(i) A rotary oil pump (A) is mounted in the crankcase at the gear end.
The pump is driven by a gear from the camshaft
(ii) Oil is drawn through a strainer (B) and fed to the filter (C)
(iii) Oil flows from the filter via a hole in the crankcase to the gear
end main bearing It is then transferred via holes in the
crankshaft to the large end bearing and the flywheel end main
bearing.
(iv) The flywheel end main bearing housing and valve rockers are
supplied with oil by external pipes
(v) A pressure relief valve is incorporated to control the oilpressure.
The cylinder, small end bearing and camshaft are splash lubricated.
(b)
(c) The crankcase can be drained by removing the plug at the bottom of
the sump.
(d) Oil must always.be CLEAN and containers, funnels, etc.. must be kept
in a spotless condition Use only approved oil. Cheap. unsuitable or
dirty oil will cause trouble.
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