Static Injection Timing - Kohler RD 441 Service Manual

8
Fuel system
4 2 5
5
160
4
3
161
162
163
- 66 -
Injection pump non-return valve
1
In the exhaust union screw there is a non-return valve. The purpose of
this valve is to improve the injection phase by expelling the air in the
fuel and preventing it from being sucked in by the pump during the in-
take phase. This also ensures that the engine stops promptly as soon
as the stopping device is activated by means of the solenoid valve.
Outlet fitting components with non-return valve
1 Outlet fitting
2 Ball Ø3.968 mm
3 Threaded screw
3 4 Ball retaining seat
5 Exhaust holes

Static injection timing

2
1 - Disconnect the pipe from injection pump outlet 1.
2 - In its place, assemble a clear nylon hose 2 as shown in the figure.
3 - Insert a metal wire, protruding about 10 mm, into the hose to allow
4 - Connect the injection pump intake 3 with a hose 4 to an auxiliary
5 - Fill the tank with the fuel
6 - Set the flow governor lever of the injection pump in the stop
1
7 - Turn the flywheel in the engine rotation direction.
8 - Proceed slowly during the compression phase. The fuel that flows
9 - Stop as soon as it creases to drip (one drop of fuel every 30-40
10- This is the static injection lead.
2
11- Use a tape measure from above the flywheel to measure the
12- Compare the value found in the "Conversion table from millimetres
13- If the value found does not match the specified value (see "Injec
an easier check of fuel leaks.
tank placed at about 50 cm higher than injection pump.
position and lock it there.
from tube 2 will tend to diminish.
seconds is tolerated).
distance between the fixed TDC reference A fig. 164 on the
crankcase and the TDC reference point C on the flywheel.
into degrees" to find the advance degrees.
tion advance specified value" table), replace the pad below the
injection pump (fig. 165)
Workshop Manual KD 441_cod. 1.5302.865_2
nd
ed_ rev. 01.