Fuel Supply Connections; Exploded Views; Fuel Rail Exploded View - Mercury MerCruiser Service Manual

MPI ECT Fuel System

Fuel Supply Connections

Improper installation of brass fittings or plugs into the fuel pump or fuel filter base can crack the casting, causing a fuel leak
and possible fire or explosion. Always install fittings and plugs correctly, and do not tighten with power tools.
•
Use Loctite 567 Pipe Sealant on the threads of fuel inlet fittings or plugs. Do not use PTFE tape.
• Fuel inlet fittings or plugs should first be threaded into the fuel pump or fuel filter base until they are finger‑tight.
• Fuel inlet fittings or plugs should then be tightened an additional 1‑3/4 to 2‑1/4 turns using a wrench. Do not overtighten.
• To prevent fitting damage or overtightening when installing a fuel line, the fittings should be held with a suitable wrench as
the fuel line connectors are tightened securely.

Exploded Views

Fuel Rail Exploded View

a
b
Ref. No. Qty.
a 1 Schrader valve
b 1 Fuel connection
c 4 Fuel rail mounting screws
d 6 Fuel injector retainer
e 6 Fuel injector
f 12 O‑ring
Page 5A-8
WARNING
!
c c
Description
© 2016 Mercury Marine
c c
Nm
12.2
90-8M0099748 eng DECEMBER 2015
d
f
e
f
59419
Torque
lb‑in. lb‑ft
108 –