Adjusting Start Of Fuel Delivery - Hatz 2-4L30 Workshop Manual

1. Adjusting start of fuel delivery:

Note:
Start the adjustment at the timing-end
injection pump.
– Move the speed control lever to the full-
load position and secure it there.
– Remove the pressure tube connection
and pressure valve at the injection
pump.
– Screw the overflow device - 10 - into the
injection pump.
– Screw the extension pin of the overflow
device into the dial gauge - 11 - and
insert it in the overflow device; see
Fig. 133.
– Connect the fuel feed line from the test
tank.
Note:
The test tank must be attached at least
200 mm (8 in) above the injection pump.
– Turn the crankshaft in the normal direc-
tion of rotation (counter-clockwise when
looking at the flywheel), until the dial
gauge needle starts to move.
– Open the fuel feed; fuel will emerge
from the overflow device.
– To turn the engine over, attach a ratchet
with 1/2-inch square end to the square
recess in the belt pulley.
– Continue to turn the engine over slowly
until the fuel emerges from the overflow
pipe slowly as separate droplets
(approx.. 1 droplet every 5 - 6 seconds).
– This point is the start of fuel delivery.
3
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