Mercury MerCruiser Service Manual page 488

Manifolds and Elbows
Description
Hose clamps
9. Connect the oxygen sensors and the exhaust manifold coolant temperature sensor.
g
c
Page 7B-14
g g
g g
f
b
a
b
d
© 2016 Mercury Marine
Raw-water cooled
a - Seawater drain hose
b - Seawater cooling hose
c - Seawater cooling hose
d - Exhaust hose (shown attached to
intermediate elbow, other models similar)
d
e - Seawater bypass hose
f - Exhaust manifold coolant temperature sensor
g - Exhaust manifold mounting screws (6)
e
g
c
59455
a
Freshwater cooled
a - Exhaust hose (shown attached to intermediate elbow,
other models similar)
b - Seawater bypass hose
c - Exhaust manifold coolant temperature sensor
d - Seawater hose from poppet valve
56945
Nm lb‑in.
3.2 28.3
90-8M0099748 eng DECEMBER 2015
lb‑ft
–