Mercury MerCruiser Service Manual page 453

a - Seawater inlet
b - Seawater flush hose and attachment
c - Power steering fluid cooler
d - Y‑fitting
e - Oil cooler
f - Fuel supply module water inlet strainer
g - Fuel supply module
h - Distribution housing
90-8M0099748 eng DECEMBER 2015
i - Heat exchanger
j - Poppet valve assembly
k - Check ball T‑fitting
l - Drain T‑fitting
m - Exhaust and seawater outlet
n - Exhaust elbow seawater inlet—poppet valve closed
o - Exhaust elbow seawater inlet—poppet valve open
p - Seawater pump
© 2016 Mercury Marine
Water Flow Diagrams
Page 6D-5