Fig. 17 - Injector Needle Valve Tester J 23010 with Auxiliary Tester J 22640
flow when checking injector fuel output, use the
appropriate adaptor. The position of the braided fuel
no fuel droplets although a slight wetting at the
inlet tube and the plastic fuel outlet tube on the
spray tip is permissable.
calibrator (Fig. 20) depends on the adaptor being used
and the direction of fuel flow through the injector.
Perform the needle valve lift test.
Calibrator J 22410
Fuel Output Test
To check the fuel output, operate the injector in
Perform the injector fuel output test in calibrator J
When injectors are removed from an engine for fuel
output testing and, if satisfactory, reinstalled without
Place the cam shift index wheel and
disassembly, extreme care should be taken to avoid
fuel flow lever in their respective
reversing the fuel flow. When the fuel flow is reversed,
positions. Turn on the test fuel oil
dirt trapped by the filter is back-flushed into the injector
heater switch and preheat the test oil
to 95-105 °F (35-40 °C).
Before removing an injector from the engine. note the
Place the proper injector adaptor between the tie
direction of the fuel flow. To avoid reversing the fuel