Engine Break-In - ILMOR MV-10 Owner's Manual & Installation Manual

Owner's Manual &
Installation Instructions
Revision 6e

Engine Break-in

All ILMOR MV10 engines are given a break-in and short power run on a dynamometer
prior to shipping.
The MV10 engine will continue to break-in over the first 25 hours of use. Light to
moderate throttle is recommended over the first two hours of operation. Proper break-in
is essential to achieve maximum power, minimal oil consumption and maximum longevity
of the engine.
Cautions:
NEVER EXCEED the maximum recommended engine speed as listed in "Engine
Specifications".
Never operate the engine at or near full throttle while in neutral. Never exceed two
minutes of continuous full throttle operation during the first five hours of running.
Do not attempt to break-in the engine by prolonged idling of the engine.
During break in watch all gauges to confirm that the engines are operating normally. At
any sign of abnormal readings reduce your speed immediately and investigate.
Always, even after the break-in period, operate the engine(s) very cautiously until they
have reached normal operating temperature (170ºF coolant).
During the break-in period is an excellent time to verify if the choice of propeller is
correct. During full throttle running with a normal load the engine should reach the
suggested full throttle RPM range as listed in "Engine Specifications". If the engine
speed is lower than this during the full throttle running, consider changing to a lower
pitch, or a smaller diameter propeller.
During break-in period it is better to use a larger propeller and try to run at 5300 RPM,
because as the engines break-in they will tend to achieve more RPM due to reduced
internal friction.
During break-in the engine oil level should be checked frequently and should be topped
up if needed. It is normal for engines to consume some oil during initial running until the
piston rings are fully seated,
It is preferable to perform the break in over many stages with a full cool down cycle after
each outing. Check the coolant level often to ensure proper level.
WARNING
At the end of the 25 hour break-in period bring the boat to an authorized ILMOR marina or
service center for the 25 hour service.
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