Page 211 - REPOWER REFERENCE GUIDE (2020)

Exhaust Systems Installation Requirements—Inboard Applications
T‑Junction With In‑Line Muffler

h

e f g

c

i

d
b g
j
a k
l 15633

Typical
a - Waterline
b - 38.1 cm (15 in.) minimum exhaust elbow height with maximum load
c - Exhaust back pressure check point
d - Resonator
e - 46 cm (18 in.) minimum between exhaust elbow and collector
f - 10° downward slope minimum
g - 3° downward slope minimum
h - 30°–60° degree angle at T‑junction
i - 3° downward slope minimum
j - Muffler
k - External flappers
l - Drain fitting

90-8M0149179 eng NOVEMBER 2018 © 2019 Mercury Marine Page 7D-9