A Series Diesel Engine Fuel System 79
Warning : The pressure of the fuel in the line is
sufficient to penetrate the skin and cause
serious bodily harm.
Use cardboard to check for cracks and leaks. With
the engine running, move the cardboard over the fuel
lines and look for fuel spray on the cardboard. Fuel
leaks can cause poor engine performance.
It is normal to have entrapped air in the fuel lines
after replacing the pump or the lines. Air in the lines
will cause the engine to run rough or produce a fuel
knock.
Bleed the air from the high pressure line at the fitting
that connects the injector. Bleed one line at a time
until the engine runs smooth.
If the air cannot be removed, check the pump and
supply line for suction leaks.
Injectors
Caution: Use only the specified injector for the
engine.
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