Purging Air - Mercury 1.7 MI Manual

MAINTENANCE

Purging Air

NOTE: Follow this procedure if fuel system was run dry or if part of fuel system was drained
for a service function.
1. Fill the fuel filter. Refer to Filling.
2. Check filter and drain cap for fuel leaks. Ensure that bleed screw on fuel filter bracket
is closed.
3. Place a suitable container under fuel injection pump to catch fuel.
4. Remove and plug boat fuel return hose from injection pump return fuel fitting.
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.
5. Temporarily install a length of fuel hose on fuel return fitting. Avoid disturbing special
hollow bolt and sealing washers.
a
Page 76
INDEX
a - Fuel return hose
b - Fuel return fitting
c - Temporary hose
d - Hollow bolt and sealing washers
CAUTION
d
b
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CMD-3967823 / 90-865237030 OCTOBER 2003
SECTION 5
c
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