CHECKS : LOW PRESSURE FUEL SUPPLY CIRCUIT
Engines : 8HV-8HY
TOOLS
[1] Ø 10 mm low pressure connector
: 4215-T.
[2] Pressure gauge for testing boost pressure
: 4073-T.A Toolkit 4073-T
IMPERATIVE : Respect the safety and cleanliness specific to high pressure diesel
injection engines.
Remove the air filter duct.
Link tool [1] in series, downstream of the injectors, between the fuel high pressure pump
and the fuel filter at «a» and «b».
WARNING: Any checking of pressure downstream of the fuel filter is prohibited.
Switch on the ignition.
ESSENTIAL : Check that the tool [2] is clean.
Check the negative pressure according to the table below:
Vacuum
Observations
10 ± 05 cmhg
20 ± 20 cmhg
Engine driven by the starter motor
Engine running under full load
Supply circuit obstructed (full tank
strainer, piping, fuel filter).
60 ± 05 cmhg
B1BP2PHC
119
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