Engine Connections; Seawater Hose Connection; Electrical Connections - Mercury MerCruiser MCM 454 Mag MPI Service Manual

SERVICE MANUAL NUMBER 23

Engine Connections

Seawater Hose Connection

IMPORTANT: When routing all wire harnesses and hoses, be sure they are routed and
secured to avoid coming in contact with hot spots on engine and avoid contact with
moving parts.
1. Connect seawater inlet hose to seawater pump as shown. Tighten hose clamp securely.

Electrical Connections

1. Connect instrument harness to engine harness with hose clamp. Tighten clamp
Index
90-861326--1 MARCH 1999
Downloaded from https://needmanual.com/
b
a - Seawater Inlet Hose
b - Hose To Cooler
securely.
a
7.4L MPI Shown
a - Instrumentation Wiring Harness Plug
MIE MODELS - HURTH TRANSMISSION
a
75533
75441
Page 2D-11