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INJECTION
CHECKS : LOW PRESSURE FUEL SUPPLY CIRCUIT
Engines : RHY - RHZ - 4HX
Engines : RHY - RHZ
Engine : 4HX
TOOLS
[1] Ø 10 mm low pressure connector : 4215-T.
[2] Ø 8 mm low pressure connector : 4218 -T.
[3] Pressure gauge for testing boost pressure : 4073-T Tool kit 4073-T
[4] Extension : 4251-T.
Connect the tool [1] Between the booster pump and the fuel filter (white mark at "a" on the
fuel supply pipe).
Connect the tool [2] downstream of the diesel injectors, Between the high pressure fuel
pump and the fuel filter (green mark at "b" on the fuel return pipe).
WARNING : Any check of pressure downstream of the fuel filter is PROHIBITED.
NOTE : To check the pressures while the vehicle is being driven, insert tool [4] Between
tool [3] and tools [1] et [2].
Checks on pressure : static.
- Switch on ignition
- For 3 seconds (normal functioning):
- Fuel supply pressure shown by the pressure gauge [3] = 2.6 ± 0.4 Bar.
- Fuel return pressure shown by the pressure gauge [3] = 0.6 ± 0.4 Bar.
B1BP20JD B1BP27BD
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