Service Manual

ISB, ISBe and QSB (Common Rail [...] Fuel Filter Head Bracket
Section 6 - Injectors and Fuel Lines - Group 06 Page 6-47
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Marine Applications
WARNING
The fuel pump high-pressure fuel lines and fuel rail
contain very high-pressure fuel. Never loosen any
fittings while the engine is running. Personal injury
and property damage can result.
CAUTION
Failure to properly prime the fuel system on marine
engines can result in damage to the fuel cooler. Be
sure the drain valve(s) are open. Be sure a good flow
of fuel is present through the fuel cooler by cycling
the keyswitch at least five times before starting the
engine. Refer to Procedure 005-016.
NOTE: It is not necessary to vent air from the high-
pressure fuel system before starting the engine. Cycling
the keyswitch several times and cranking the engine will
prime the fuel system.
NOTE: It is not necessary to pre-fill the on-engine fuel
filter.
Priming the fuel system requires cycling the keyswitch
several (5 or more) times to make sure the fuel filter is
primed properly and that all the air is out of the fuel
system down stream through the fuel cooler.
Operate the engine and check for leaks.
Fuel Filter Head Bracket (006-018)
Remove
Remove the fuel supply and return line connectors. Refer
to Procedure 006-024
Remove the fuel filter. Refer to Procedure 006-015
Disconnect the fuel heater connector, if applicable.
Remove the fuel filter bracket capscrews.