Installation; Transom Height - BRP Evinrude E-TEC 40 Operator's Manual

Product Information
WARNING
Your outboard must not exceed the max-
imum horsepower indicated on the
boat's capacity plate. Such overpower-
ing can cause loss of control. Contact
your Dealer or the boat's manufacturer if
your boat lacks a capacity plate.
Boats designed for remote-steered out-
boards might be overpowered by a tiller-
steered outboard of the maximum rated
horsepower. Ask your Dealer or boat
manufacturer if you are unsure about
your boat's suitability.
Incorrectly matched boat and outboard
transom heights can cause boat instabil-
ity and loss of control. Refer to Transom
Height.
Prevent lateral movement and possible
outboard loss by using the mounting
hardware supplied or hardware of suffi-
cient size, strength, and quality. Refer to
Installing the Outboard on page 71.
A mounting surface that is damaged or
too thin to support your outboard while
underway might fail during operation,
causing a loss of control. Be sure the
boat's transom or mounting bracket is
structurally sound and between 1 5/8 in.
(41 mm) and 2 3/4 in. (70 mm) in thick-
ness.
NOTICE
Use an appropriate hoist to lift the
engine. Refer to Specifications on page
77 for engine weight.

Transom Height

Make sure the transom height matches the
length of the outboard to be installed.
• A 19 to 21 in. (48.3 to 53.3 cm) transom
height uses a 20 in. (50.8 cm) shaft out-
board.
• The shaft length of the outboard being in-
stalled should come close to matching the
transom height of the boat.
70

Installation

• Refer to Specifications on page 77 for
transom height.
Determine transom height by measuring from
the top edge of the transom, along the center-
line.
1. Centerline
2. Antiventilation plate
3. Transom Height
Boat performance depends on outboard
mounting height.
Generally, the anti-ventilation plate of the
gearcase should align with the bottom of the
hull. Conventional V-hulls often perform well
with the anti-ventilation plate approximately 1
in. (25 mm) above the bottom of the hull.
Test outboard and boat performance at differ-
ent heights until the best performance is
achieved.
IMPORTANT: Be sure that outboard water
pressure is not adversely affected by the
mounting height of the outboard.
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