Tools, Accessories, Etc - O.S. engine MAX-18CV-RMX Owner's Instruction Manual

18CV-RM & 18CV-RMX INSTRUCTIONS
MAX- MAX-
This manual handles the following two versions.
18CV-RM with 11J carburetor
MAX-
18CV-RMX with 11J carburetor
MAX-
The O.S. "18CV-RM" is a high-perfor-
mance water-cooled marine engine for
small radio-controlled boats, especially
sport type hulls. A companion model, the
18CV-RMX incorporating a recoil
MAX-
starter system is also available.
Standard accessories
Glow Plug No.8
NOTE
As delivered, the engine has the
carburetor lightly fit into its intake.
Secure it changing its angle
according to the hull.

TOOLS, ACCESSORIES, etc.

The following items are necessary for operating the engine.
Items necessary for starting
FUEL
Generally, it is suggested that the user selects a fuel
that is commercially available for model two-stroke
engines and contains 10-30% nitromethane. As a
starting point, we recommend a fuel containing 20%
nitromethane, changing to a fuel containing more
nitro if necessary. When the brand of fuel is changed,
or the nitro content increased, it is advisable to
repeat the running-in procedure referred to in the
RUNNING-IN paragraphs. Please note that with
high-nitro fuels, although power may
be increased for competition purposes,
glowplug elements do not last as long
and engine life will be shortened.
REMINDER!
Model engine fuel is poisonous. Do not
allow it to come into contact with the
!
eyes or mouth. Always store it in a
clearly marked container and out of the
reach of children.
About the Head Gasket
These engines are equipped with two head
gaskets of 0.1mm thick and 0.2mm thick. It is
suggested to adjust the total thickness
according to atmospheric
humidity and glowplug used.
At early stage of running-in, when a glowplug
tends to burn out early or when high
nitromethane content fuel is used, try to run
the engine with both gaskets.
When low nitromethane content fuel is used,
try to run the engine removing the 0.1mm
gasket.
8
Model engine fuel is also highly
flammable. Keep it away from open
! flame, excessive heat, sources of sparks,
or anything else which might ignite it. Do
not smoke or allow anyone else to
smoke, near to it.
SUPER FILTER (L) (Option)
Fit a filter to the outlet tube of your
refuelling container to prevent entry of
foreign matter into the fuel tank.
GLOWPLUG IGNITER
Commercialy available handy glowplug
heater in which the glowplug battery
and battery leads are integrated.
PROPELLER
Use well balanced propellers only. As the ideal
diameter, pitch and shape vary according to the
size, weight and type of model, final selection
can be made after practical experiment. As a
starting point, suggested propeller
diameter is 36-40mm with a pitch/dia
ratio of 1.2-1.6 for Vee type hulls.
9
temperature,