8-98076995-2 Injector Orifice Plate 509# Encyclopedia
8-98076995-2 Injector Orifice Plate 509# Part Number Common Writing
509#,509,295040-6860,2950406860,2950406860
8-98076995-2 Injector Orifice Plate 509# Working Principle
The orifice plate 509# Controls injector’s oil hole and controls the passing oil flow. If the orifice plate 509# is damaged, it may cause problems as:
- Blocksoil return hole, causes the oil return amount decreasing and injector not injecting.
- The oil return hole becomes larger, causinghemispherical ball not sealing tight, and injector cannot form injection pressure. The injector can not work normally.
- Wearing planeof orifice plate causes hemispherical steel ball not sealing well and increasing oil return amount. In severe cases, injector cannot form pressure and nozzle sprays directly.
Oil inlet hole is blocked and will cause the oil return amount small and injector not injecting.
8-98076995-2 Injector Orifice Plate 509# Thickness Measurement Tool’s Introduction
- Electronic Vernier Caliper
- Technical Parameters
- 1.Made of stainless steel.
- 2.Resolution: 0.01mm/0.001.
- 3.Can set on zero at any location.
Pic No.1
| 1: Caliper Body |
2: Caliper Frame
Fastening Screw |
3: LCD |
4: Data Output Port |
| 5: Data Output Port |
6: Battery Cover |
7: Depth Bar |
/ |
- Electronic Digital Display Micrometer
- Technical Parameters
- 1.Range: 0-25mm,25-50mm,50-75mm,75-100mm
- 2.Resolution: 001mm
- 3.Power: Voltage 1.5V button battery
- 4.Working Temperature: 0∽+40℃
- 5.Storage Temperature: -20∽+70℃
- 6.Environment Humidity: ≤80%
Pic No.2
| 1: Micro-tube |
2:Ratchet Force
Measuring Device |
3: Data Output
Port |
4: Display
Screen |
5: mm Function
Key |
| 6: ON/OFF ZERO
Function Key |
/ |
/ |
/ |
/ |
Impact Classification According to The Degree of Damage to The Orifice Plate 509#
| Damage Type |
Severe Damaged |
General Damaged |
Slight Damaged |
| Classification |
A |
B |
C |
| Impact on Overall Performance |
Cause the fuel injector to not work properly, damage the vehicle engine or cause serious loss |
Cause the injector cannot work normally, the vehicle cannot start normally, and the vehicle stop working |
Cause Excessive oil return of injector and the vehicle engine
shaking |
| Impact on Features |
Affect the normal operation of the engine |
Affect the normal operation of the injector |
Affect the fuel injection volume of the injector |
| Impact on Safety of Use |
Cause serious damage to the engine and cause safety accident |
Cause serious damage to the injector and may cause safety accident |
Cause serious damage to the injectors and the vehicle stop working |
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And if you are interested in more technical guidance, such as orifice plate’s installation, repairing and so, please check orifice plate 509# technical file:
https://www.dieselorificeplate.com/diesel-8980769952-injector-orifice-plate-pdf/
