GASOLINE STERNDRIVE INSTALLATION MANUAL
Page 38 of 137
90-860172011
BRAVO MODELS
IMPORTANT: When installing through the transom exhaust, it is recommended that
the exhaust bellows on the transom assembly be removed. This is necessary to avoid
creating a vacuum at the exhaust outlet in the propeller at higher boat speeds. This
vacuum could degrade propeller performance on some boats.
1. If required, remove and discard clamps and bellows from gimbal housing.
IMPORTANT: When installing through the propeller exhaust:
•
With Bravo One and Bravo Two Sterndrives an exhaust tube MAY BE INSTALLED
for a slight increase in performance.
•
With most Bravo Three Sterndrive Models an exhaust tube MAY BE INSTALLED
for a slight increase in performance.
•
With a Silent Choice Exhaust System the exhaust bellows must be removed and
an exhaust tube MUST BE INSTALLED.
•
With any application, installation of an exhaust tube will increase exhaust noise.
NOTE: Exhaust tube parts are provided with a Bravo Three Sterndrive. They are located
in the sterndrive unit box.
2. If required, install exhaust tube on gimbal housing as follows:
a. Remove and discard clamps and exhaust bellows.
CAUTION
Exhaust tube clamp may corrode if grounding clip is not installed.
b. Install grounding clip on tube.
NOTE: Bellows adhesive is not used when installing an exhaust tube.
c. Position tube so that “SIDE” markings on tube are facing toward the right and left
sides.
d. Install and torque the clamp.
22184
c
b
a
e
d
a -
Exhaust Tube
b -
Clamp
c -
SIDE Marking
d -
Exhaust Tube
e -
Grounding Clip
Description
Nm
lb-in.
lb-ft
Clamp
4
35
