Monterey Sport Cruiser 260SCR, Owner'S Manual, Page: 75 / 212

Section 8
8-8
Cruiser
PROPELLERS
The following basic information may not apply to
all engines. See the
Engine Operator’s Manual for
information on propellers for your boat. Consult
your local marina or certified marine technician
for assistance when replacing or servicing
propellers.
The propeller converts the engine’s power into
the thrust needed to propel the boat. Care and
selection of your propeller is very important for
proper boat operation. Propeller size is usually
identified by two numbers, such as 13 x 19, and a
material identification, such as aluminum or
stainless steel. In the number sequence, the first
number is the diameter of the propeller in inches
and the second is the pitch in inches.
Pitch is the angle of the blades expressed in the
theoretical distance a propeller travels in each
revolution. In the previous example, the pitch is
19, which means that each revolution of the
propeller pushes the boat 19 inches (483 mm)
through the water.
Propellers on boats powered by outboard or stern
drive propulsion systems are usually replaced out
of the water to prevent loss of parts and to ensure
correct installation. Although propeller
replacement can be completed with the boat in
the water, it is not recommended. Remove an
inboard-powered boat from the water for propeller
replacement because the propeller is not
accessible while the boat is in the water. Special
tools are required for most applications. Always
consult your local marina or certified marine
technician for assistance when replacing or
servicing propellers.
Figure 8-3
Figure 8-7
Figure 8-4
Figure 8-8
Propeller Selection and
Replacement Guidelines
There are many different propeller designs for
specific operating characteristics. Always consult
a certified marine technician when replacing your
propeller.
To prevent accidental start-up, complete the
following before installing or removing the
propeller:
• Position the shift control in NEUTRAL.
• Position the battery switch to the OFF position
and remove the key.
• Place a wood block between the cavitation plate
and the propeller to hold the propeller in place.
Remove the propeller nut.
WARNING! Never
use your hand to hold the propeller when
removing the propeller nut.
KC-0149-A
DIAMETER
KC-0150-A
PITCH
(ONE REVOLUTION)