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Old 09-30-2009, 06:04 PM   #1
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Default Carb return Spring.

I have a question about not having this hooked up. I have an 8ight-t 2.0 RTR. local expert aand track owner, said its better to remove spring as it can cut into carb boot and cause tuning and air leak problems. What do guys think and do.
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Old 09-30-2009, 06:17 PM   #2
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You can re-bend the spring so it doesn't
drag on the carb boot too tight. Then again,
I would rather worry about keeping a eye on
the carb boot than worry about a blown engine
from losing radio signal.
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Old 09-30-2009, 06:33 PM   #3
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Quote:
Originally Posted by rageworks View Post
You can re-bend the spring so it doesn't
drag on the carb boot too tight. Then again,
I would rather worry about keeping a eye on
the carb boot than worry about a blown engine
from losing radio signal.
some people use one of those tangle-free hair ties, they are kinda like small clear plastic bands. I use 3 or 4 at a time to make sure i have enough tension. I will never run an engine without one of these, I have learned my lesson as I've seen and experience servos or other things that have blown engines at WOT
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Old 09-30-2009, 07:11 PM   #4
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Originally Posted by omarwashington View Post
some people use one of those tangle-free hair ties, they are kinda like small clear plastic bands. I use 3 or 4 at a time to make sure i have enough tension. I will never run an engine without one of these, I have learned my lesson as I've seen and experience servos or other things that have blown engines at WOT


goodys ouchless hairbands

clear in color
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Old 09-30-2009, 07:23 PM   #5
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http://www.amainhobbies.com/product_...e-Return-Bands
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Old 09-30-2009, 09:47 PM   #6
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I run two of those rubber bands posted above. They work awesome you just have to be careful. After a bit they will become weak and snap. I replace mine with new ones every couple of races or you can try and remember to look at them everytime you turn the vehicle on.
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Old 10-01-2009, 04:38 AM   #7
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http://www.walmart.com/catalog/produ...ct_id=10319772
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Old 10-01-2009, 07:39 AM   #8
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Quote:
Originally Posted by houston View Post


goodys ouchless hairbands

clear in color
I use pink ones
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Old 10-01-2009, 08:16 AM   #9
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I run two of those rubber bands posted above. They work awesome you just have to be careful. After a bit they will become weak and snap. I replace mine with new ones every couple of races or you can try and remember to look at them everytime you turn the vehicle on.
i have seen those gmk ones and they are nothing more than rubber bands and they do not last !!! http://www.walmart.com/catalog/produ...ct_id=10319772

these are the ones , i have used them with great success as well as many other racers i know .
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Old 10-06-2009, 09:33 AM   #10
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GMK Supply "Carb -O's"

They are fuel proof and thick enough that they won't cut the carb boot.

http://www.trackstarrc.com/servlet/t...B-O%27S/Detail
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Old 10-06-2009, 10:50 AM   #11
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I just 1 of the hair things.
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Old 10-06-2009, 10:51 AM   #12
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I dont bother; the only time a spring/band is going to help is if the throttle linkage pops off. The springs/bands dont have enough tension to pull an unpowered servo back. If you do get enough tension to pull it back than it's decreasing the performance of the servo.
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Old 10-06-2009, 11:04 AM   #13
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Ummm... Yes they do actually. Most people use digital servos now, and they take no force at all to pull back if they lose power.

They aren't like older analog servos where this was a problem, and they didn't have enough tension to pull it back.

And lol on decreasing it's power. That is far off. Digital servo's with over 200oz of torque would never show lag because of these. Don't forget digital servos also have double the holding power of there torque, so a 200oz servo can hold a single position with over 400oz of torque.

I can thump my JR Throttle servo when its off and move it no problem. Your post Mad really only can apply to analog servos which no one really runs anymore.
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Old 10-06-2009, 11:34 AM   #14
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Quote:
Originally Posted by RJNicholson View Post
Ummm... Yes they do actually. Most people use digital servos now, and they take no force at all to pull back if they lose power.

They aren't like older analog servos where this was a problem, and they didn't have enough tension to pull it back.

And lol on decreasing it's power. That is far off. Digital servo's with over 200oz of torque would never show lag because of these. Don't forget digital servos also have double the holding power of there torque, so a 200oz servo can hold a single position with over 400oz of torque.

I can thump my JR Throttle servo when its off and move it no problem. Your post Mad really only can apply to analog servos which no one really runs anymore.
It applies to my Hitecs as the spring didnt move it at all with the power off hence my statement that the only servos it would work on would be ones that would take a performance hit from using it. Perhaps all the other digital servos in the world are different...
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Old 10-06-2009, 11:56 AM   #15
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Not sure why yours is different unless your spring is really weak.

I use JR HV Servos and mine have no problem with a throttle return spring. Even the Hitech HV's that I have seen have the same free flow movement when off and don't have any resistance when trying to move them by hand.
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