[1] – Connect fuel injection nozzle to D01109AA Diesel Fuel Injection Nozzle Tester using parts from D01110AA Adapter Set and 23622 Straight Adapter.
Injection Nozzle Test Equipment
[2] –
IMPORTANT:
Use clean, filtered diesel fuel when testing injection nozzles for best results.
Test fuel injection nozzle opening pressure following the Nozzle Tester manufacturer′s instructions.
Results:
If pressure reading does not meet specification, disassemble injection nozzle and inspect nozzle assembly for contamination or stuck valve. If necessary, add or remove shims to change opening pressure.
Procedure 2:
Test fuel injection nozzle leakage following the Nozzle Tester manufacturer′s instructions.
1. Dry nozzle completely using a lint-free cloth.
2. Pressurize nozzle to 11 032 kPa (1600 psi).
3. Watch for leakage from nozzle spray orifice. Leakage time should be a minimum of 10 seconds.
Results:
If leakage time does not meet specification, disassemble injection nozzle and inspect nozzle assembly for contamination. Inspect valve seating surface. Replace nozzle assembly if necessary.
Procedure 3:
Test fuel injection nozzle chatter and spray pattern following the Nozzle Tester manufacturer′s instructions.
1. Pressurize nozzle to opening pressure.
Results:
– If nozzle chatter or spray pattern does not meet specifications, disassemble injection nozzle and inspect nozzle assembly for contamination. Inspect valve seating surface.
Replace nozzle assembly if necessary.
– If there is excessive difference in spray angle or injection angle, incomplete atomizing or sluggish starting and stopping of injection, disassemble injection nozzle and inspect assembly for contamination. Replace nozzle assembly if necessary.
