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HelicopterBeginners Corner › Nitro engine break in
07-10-2008 02:26 PM  9 years agoPost 1
Andre54

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South Africa

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Sorry if this topic has been discussed to death

I have a OS 50 Hyper
What is a good break in procedure, do i just follow the manual?
Any usefull links

Thanx for any help

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07-10-2008 03:54 PM  9 years agoPost 2
Swoop

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Newark, DE USA

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07-10-2008 07:58 PM  9 years agoPost 3
Dilbeck

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Springdale Arkansas

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Just follow the manual.

Clint

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07-10-2008 08:05 PM  9 years agoPost 4
JRjoe

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Jonesville , IN USA #1

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Just follow the manual.
Exactly...


JRjoe.....
Indoor plumbing??? No, we don't need that!!!

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07-14-2008 01:33 AM  9 years agoPost 5
billm

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Liberty Lake, WA

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I have several 50 Hypers. Just run the sucker stinking rich in a hover. Your friends at the field will wonder if your running a smoke house. Not to worry. After a few tanks of smoking hovering. Lean her in a few clicks every flight. Check the head temp using a pirometer.
Never get the Hyper head above 200. You should be golden,
My two cents

My name is Billm. Cough, and I'm a Heli Holic

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07-16-2008 07:54 PM  9 years agoPost 6
Andy from Sandy

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Bedfordshire, UK

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Just run the sucker stinking rich in a hover.
No, this is not how to run an engine in.

I think the manual talks about 1 1/2 turns on the main needle. Well start it at 2 turns and lift off into a hover. After about a minute, maybe 30 seconds for the first few hovers, land and feel if the back plate is warm. If it isn't lean the main one click. Repeat process until you can feel the back plate is just getting warm. Now fly out the rest of the tank. You do not need to just hover.

Repeat this process. As the engine beds in the temperature will go down. As it does just lean it out a click at a time to keep some warmth in the engine.

If the engine is not getting warm it is not running in. Well it is but it will take alot longer than what I am suggesting.

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07-17-2008 03:27 AM  9 years agoPost 7
billm

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Liberty Lake, WA

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Bench testing with a prop for a heli motor is not the way to go.
Heat cycles are the key for a Hyper. The touching of the back plate is old school. Use a pyrometer on the head to see how things are going. A few flights rich and a click lean every flight will get your motor happy. After a few flights I try to hit about 180f on the head. Remember the weather will affect your engine tunning.
Some days I have to click rich, and others a bit lean. Never think that once your needle is dialed in you never have to change it.
my two cents

My name is Billm. Cough, and I'm a Heli Holic

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07-18-2008 05:40 PM  9 years agoPost 8
Smacka

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PA

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What is a good break in procedure, do i just follow the manual?
Install a carb smart on your hyper 50 and leave the adjusting to the onboard computer. All you do is set the computer up for full lean mix position, full rich mix position (by pushing the proper button) and set the celsius temp (usually around 100 C), then fly the bird and watch how the carb smart cycles. If after you fly it hard and the carb smart servo is still on full lean mix, then increase the celsius set temp to 110 C and fly it again. You should see the servo begin to cycle the mix arm back slightly toward the rich side or to the neutral position. That means the temp setting for the way you fly is now correct and the carb smart will do the rest.

This is the best invention to come along in years. It keeps the guess work out of the equation.

When your engine gets hot, the carb smart richens the mixture to cool her down. When your engine runs cold, the computer leans her out to heat her up some.

Very few engines today need break-in periods. That was from the old days when they ran chrome plated piston rings that needed to seat to the cylinder bore before they sealed correctly.

Still, if you run your engine hot and do not have the proper lubricant for the temp you are running, she will seize...use a carb smart!!

Have a great day...now go fly!!
Smacka

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07-21-2008 07:31 AM  9 years agoPost 9
Andre54

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South Africa

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Thanks a lot to everyone for the help and advice
This forum rocks
thanx dudes

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07-21-2008 07:42 PM  9 years agoPost 10
restinfine

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INDIANA

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Nitro engine break in

If you have a ( Raptor ) change the clunck line if its the stock

line. They get soft very quick,and your tuning will very alot.

Your motor will go lean and rich in the same flight.

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07-21-2008 07:44 PM  9 years agoPost 11
BarracudaHockey

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Jacksonville FL

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I personally wouldnt suggest running a carb smart or governor till the engine is run in a bit. They don't need much but running the engine while its belching smoke and pouring raw fuel out does nothing towards breaking in the engine.

Andy
AMA 77227
http://www.jaxrc.com

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07-22-2008 02:44 AM  9 years agoPost 12
billm

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Liberty Lake, WA

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BarracudaHockey,
Your on the mark. Never put all the bling on your motor until it's happy. I am from the old skeeewl of breaking in a chopper motor.

My name is Billm. Cough, and I'm a Heli Holic

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