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it at approximately 10° before the vertical positio n
(c) On all variable speed engines, move the speed control to the full speed
position but DO NOT OPERATE THE OVERLOAD STOP LEVER.
(d) Unscrew the delivery union body (A) and remove, making sure that the
sealing ring (F) Is withdrawn also Lift out the delivery valve (C) and
spring (B). placing them in clean fuel. Do not disturb the delivery valve
seat (D) or joint washer (E).
(e) Position the sealing ring on the delivery union body and replace in the
pump body leaving out the delivery valve and spring Replace the
pump-to-iniector pipe. connecting the pump end only
(f) With the decompressor lever disengaged, turn the flywheel until it is a
quarter of a turn before TDC on the compression stroke
Pour a smallquantityoffuel into the tank and bleed the fuel filter, if fitted.
(g)
A small stream of fuel should now flow from the pump-to-injector pipe
Engage the decompressor lever and turn the flywheel slowly by hand in
(h)
a clockwise direction until the flow from the pipe stops Find by
repeated trial the EXACT flywheel position at which this happens This
position is known as the spill point.
(i) Read off the angle through the timing hole at the mark on the
bellhousing Check this with the figure shown under Technical Data If
the angle is too large, add shims between the pump and crankcase
until the correct timing is obtained. If too small, remove shims
(j) When the correct timing is obtained, reassemble the fuel injection
equipment including the fuel delivery valve and spring Ensure that the
union body sealing ring is not damaged and is located on the union
body shoulder before replacing in the pump
Tighten the delivery union body using a torque spanner set to the figure
(k)
shown under Technical Data
Fig. 17
47
.
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