Changing Water Separating Fuel Filter - Mercury MerCruiser MCM 4.3L ALPHA Service Manual

SERVICE MANUAL NUMBER 25

Changing Water Separating Fuel Filter

Be careful when changing water separating fuel filter. Gasoline is extremely
flammable and highly explosive under certain conditions. Be sure ignition key is
OFF. Do not smoke or allow spark or open flame in area when changing fuel filter.
Wipe up any spilled fuel immediately.
Make sure no fuel leaks exist before closing engine hatch.
The electric fuel pump and factory installed water separating fuel filter have been
carefully designed to function properly together. Do not install additional fuel filters
and/or water separating fuel filters between fuel tank and engine.
The installation of additional filters may cause:
• Fuel Vapor Locking
• Difficult Warm-Starting
• Piston Detonation Due to Lean Fuel Mixture
• Poor Driveability
1. Unsnap latch and slide top and bottom cover pieces, if equipped, from around the water
separating fuel filter and bracket.
NOTE: Top and bottom cover pieces are formed with a groove on each side that slides
around the brackets outer edges.
Index
90-861328--1 NOVEMBER 1999
a - Fuel Filter Cover
WARNING
WARNING
CAUTION
a
MAINTENANCE
75034
Page 1B-13