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› Belt tightness
01-16-2010 08:08 PM  8 years agoPost 1
hydev

rrApprentice

Denby Dale, UK

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Hi,

How does everybody else determine how tight the belt is? I only ask because my scorpion motor gets reasonably warm whilst I'm learning 3D.

Mike

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01-17-2010 01:00 PM  8 years agoPost 2
dizzymarkus

rrVeteran

Oswego, NY

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I have the stock motor that gets smoking hot lol --
my general rule (and havent had any probs yet lol) is when your fingers hurt from pulling it tight -- make it tighter lol

Markus

I reject your reality and substitute my own :0)

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01-19-2010 05:13 AM  8 years agoPost 3
Shawn Behrens

rrApprentice

DEEP IN THE BOG

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As tight as I can get it front and back.

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01-21-2010 10:39 AM  8 years agoPost 4
Richardmid1

rrProfessor

Leeds, England

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Can anyone explain why the Protos needs an overly tight belt? Are there reports of it slipping or derailing?

dizzymarkus, are you sure the hot motor and having your belt really tight are not related?

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01-21-2010 12:20 PM  8 years agoPost 5
gorn

rrElite Veteran

Western Australia

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because its the main AND tail drive in one belt.
Thats a lot of power to transfer into a single belt.

I shredded 2 belts when I first got my Protos, thinking surely it was tight enough lol.

Now I have no issues with slippage, and it still autos fairly good too.

For the love of the hobby

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01-21-2010 01:12 PM  8 years agoPost 6
dizzymarkus

rrVeteran

Oswego, NY

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my motor gets hot because its the stock motor(they all do) -- seems to take it tho -- and yes I am absolutley sure the belt must be TIGHT AS POSSIBLE -- it slacks up when spinning

Markus

I reject your reality and substitute my own :0)

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01-22-2010 05:01 PM  8 years agoPost 7
jdanks

rrApprentice

OREGON

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An over tight belt will put unneeded stress on all parts involved and rob power and performance.
The important thing to remember with the Protos is that you tighten both the front and the rear equally.
I don't run the belt on the Protos any tighter then I do on any other belt driven helicopter and I have never had the belt slip on me.

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01-22-2010 07:55 PM  8 years agoPost 8
Richardmid1

rrProfessor

Leeds, England

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That makes more sense to me. Mike (OP), had his belt tight and his oneway pinion would get hot and the blades would not spin freely clockwise. I understand why flat belts or V belts need to be tight to a certain extent but not toothed belts. He has also had static interference problems which could be from over tightening the belt causing excessive friction.

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01-22-2010 08:40 PM  8 years agoPost 9
hydev

rrApprentice

Denby Dale, UK

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Thanks - will try it this weekend and see what happens.

Mike

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