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Break in procedure
for Nitro Engine
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A good break in procedure is always a treasured knowledge for taking
care of a Nitro Engine. The “heat cycling” is one of the kind that is
good for breaking in. Start the engine and let it idle, after one or
two minutes feel the cylinder head. It should be hot enough that you
are not able to hold it for more than 10 seconds. Stop the engine and
make sure that piston is at the bottom of the stroke. Let it cool down
completely. It should be stone cold. Repeat the procedure several times,
may be 10-12 timely. It might look like tiring procedure but one needs
to have patience. This procedure is usually dedicated to first tank
of fuel.
Now take it out and run it. Open the main needle one full turn. The
nest four tanks should not run more than half throttle the speed should
be varied up and down. Let it also cool down completely but every time
one has to ensure that piston is at the bottom of the stroke at the
time of cooling. It would be a good idea if the engine runs at 200 degree
range during this period.
Next would be four more tanks running up to three-fourth throttle but
the manner should be same as stated earlier. After this you one can
go wide open and go in for another six tanks. These engines run best
at 220 to 240 degrees plus a visible line of smoke should always be
coming from the exhaust stinger.
If one has patience and take time for break in procedure then one is
rewarded with engine that is stronger and runs longer than others put
together.
Some thing should be kept in mind while doing the break-in especially
with the heat method. It would not be advisable to start the engine
with the electric starter. Before starting up the engine a nice suggestion
would be to cover up the cooling head with something so the engine heats
up properly. This is because without the cover the engine may remain
cold. Then start the engine and let it run rich at full throttle for
2-tanks at a temperature of eighty degrees Centigrade. Then two more
engines to run at ninety and one more at hundred degrees.
After this the engine is almost run-in but you shall need to finish
the run-in with two more tanks after this. After such a patient procedure
the car would be ready to run.
For starting a break-in read all the information available. Information
never hurts, on the contrary it might help. Further, be very patient
with the whole procedure of break-in. Start breaking-in patiently. Many
people recommend using 10-20% nitro for breaking –in and to stick with
the same fuel for the life of the engine. There fore special break-in
fuel might not be really necessary.
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