1 | Injection nozzle |
2 | Tester |
3 | Valve |
4 | Lever |
"A" | Spray pattern closed = good |
"B" | Spray pattern stringy = bad |
S07.10-2002-06
| Remove/install | ||
1 | Remove injection nozzles (1) | Remove/install injectors | |
Danger ! | Risk of explosion caused by test oil being ignited. Risk of injury to skin and eyes caused by test oil streaming out | Keep all ignition sources out of the hazard area. Only check injection nozzles in the nozzle testing device. Do not touch the injection nozzle stream. | |
2 | Connect injection nozzle (1) to the testing unit (2) | Tester | |
3 | Close valve (3) at testing unit (2) and pump injection nozzle (1) with testing unit (2) vigorously approx. 5 times | ||
4 | Perform a "chatter test"; to do this actuate lever (4) on test equipment (2) slowly and evenly (about 1 stroke/s) | The jet stream must come out with a soft chatter noise, if necessary:. | |
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Repair injection nozzles | |||
5 | perform a "spray pattern test" by actuating the lever (4) on the test equipment (2) vigourously (about 3 strokes/s) | The spray pattern must be closed and well atomized (picture A); if the spray pattern is broadly scattered, too wide or stringy (picture B). | |
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Repair injection nozzles | |||
6 | Open valve (3) at testing unit (2) | ||
7 | Check the "ejection pressure"; to do this actuate the lever (4) on the test equipment (2) slowly (about 1 stroke/s and read off ejection pressure on pressure gauge of the test equipment (2) | Injection nozzles/ejection pressure | |
Pressure difference of injection nozzles within engine max. | |||
If the specified values are not reached | |||
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Repair injection nozzles | |||
8 | Install in the reverse order |
000 589 14 27 00
Tester