Water Hose Connections; Electrical Connections - Mercury MerCruiser MCM 454 Mag MPI Service Manual

MCM MODELS - BRAVO AND BLACKHAWK DRIVES

Water Hose Connections

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 hose to water tube at gimbal housing with hose clamp. Tighten clamp
securely.
NOTE: In the following view the engine is not in position, for visual clarity in this step.

Electrical Connections

1. Connect instrument harness to engine harness with hose clamp. Tighten clamp
securely.
7.4L MPI Shown
Index Index
Page 2A-10
Downloaded from https://needmanual.com/
c
a - Water Inlet Tube
b - Hose Clamp (Tighten Securely)
c - Seawater Inlet Hose To Seawater Pump
a
a - Instrumentation Wiring Harness Plug
a
b
SERVICE MANUAL NUMBER 23
72590
75441
90-861326--1 MARCH 1999