Checking injector flow capacity
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Checking injector flow capacity
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Warning
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Work only in a well-ventilated area. If approved equipment for the
extraction of fuel vapour is available, be sure to use it.
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Wear suitable gloves. Prolonged contact with fuel may give rise to skin
irritation or dermatitis.
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Keep a class BE fire extinguisher near at hand. Be mindful of the danger
of sparks caused by short-circuits and when connecting and
disconnecting leads, etc. in electrical circuits.
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No smoking anywhere in the vicinity.
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1.
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Remove the fuel rail with
injectors as described on the previous pages.
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2.
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Start the fuel pump by connecting a jumper lead across fuses 4 and 32.
Check that the injectors do not leak.
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3.
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Place the injectors in turn over a measuring flask and connect battery
voltage to the injector to be checked, using cables 86 11 410 and 86 11 345.
Activate the injector for exactly 30 seconds and then check whether the
quantity of fuel in the measuring glass is at least 107 and at most 115
millilitres.
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4.
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Change any defective injectors.
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5.
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Refit the fuel rail and injectors. Be careful to fit the right
connectors to the right injectors.
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Checking the fuel pressure/fuel pump
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To check the fuel pressure/fuel pressure regulator, refer to Service Manual 2:3 "Fuel
system"
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To check fuel pump capacity, refer to Service Manual 2:3
"Fuel system"
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