77
CD838
FILLING (BLEEDING) FUEL SYSTEM
NOTE: Follow this procedure if fuel system was run dry or if part of fuel system was drained for a service function.
1 Fill fuel filter as outlined previously.
2 Place a suitable container under fuel injection pump to catch fuel.
3 Remove and plug boat fuel return hose from injection pump return fuel fitting.
CAUTION
Avoid the risks of fuel leaking. The injection pump fuel return valve, a special hollow bolt, uses sealing
washers to prevent fuel from leaking. Replace the sealing washers if leaking.
4 Temporarily install a length of fuel hose on return fuel fitting. Avoid disturbing special hollow bolt and sealing
washers.
A Return Fuel Fitting
B Temporary Hose
C Hollow Bolt and Sealing Washers
5 Move plunger on hand pump/primer up and down repeatedly, until an air free stream of fuel flows from
temporary hose.
6 Remove temporary hose. Unplug and install boat return fuel hose on fitting. Clamp hose.
7 Move plunger knob up and down several times until some added resistance is noticed when knob is moved.
8 Check for fuel leaks.
9 Dispose of waste fuel as defined by local authorities.
10Start engine, check for fuel leaks. If leaks exist stop engine immediately. Recheck installation.
NOTE: In some circumstances, it may be necessary to bleed (purge air) from the injectors if the engine does
not readily start. Refer to an Authorized Mercury MerCruiser Dealer.
To Next Page
Loading...
Need help?
General