questions about 8-t throttle servo/linkage

questions about 8-t throttle servo/linkage
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questions about 8-t throttle servo/linkage - 7/14/2008 3:54:37 AM

g-townmach

Posts: 14
Joined: 4/30/2008
From: , TX, USA
Status: offline

Are the problems w/ the 8-t servo's burning up because of the actual servo or beacuse of the throttle linkage. My question is, is it only the 8-t RTR's that are having their servos burn up??..because its an improper end point setting on the servo from the factory? Or is it the actaul linkage or something else causing the problems so it will effect the roller version? Reason being is that i'm thinking about doing the race roller and using either a hitec or hobbico servo for the throttle and of course ACE 1015 for steering.. but i might second guess it if everyone is having these problems b/c i don't like to buy new servos unless it was my own fault for breaking them.

Post #: 1

RE: questions about 8-t throttle servo/linkage - 7/14/2008 4:21:28 AM

rebelracer246

Posts: 499
Joined: 4/22/2008
From: springfield, OH, USA
Status: offline

what it is the endpoints arnt really set right from the factory and the servo tray flexes if you dont have them set right i have only blowen one so far knoc on wood

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RE: questions about 8-t throttle servo/linkage - 7/14/2008 1:23:55 PM

SycoCell

Posts: 274
Joined: 1/28/2008
From: Punta Gorda, FL, USA
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Yeah ditto. But mine blew for some odd other reason. I always set all my EPA's before running it. But it could have been caused by the flexing of the tray as well.

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RE: questions about 8-t throttle servo/linkage - 7/14/2008 1:51:42 PM

rebelracer246

Posts: 499
Joined: 4/22/2008
From: springfield, OH, USA
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ya that will do it

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RE: questions about 8-t throttle servo/linkage - 7/14/2008 7:49:38 PM

FatBoyObese

Posts: 18
Joined: 1/15/2008
From: Cheltenham, UNITED KINGDOM
Status: offline

I must admit that I set my epa's before every run too....just can't afford not to as the servos I run are not cheap lol.
There are those around that say you don't need the 'o' rings under the battery box on the 8ight t but I still use them as I haven't got the balls not to just in case I trash another servo

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Post #: 5

RE: questions about 8-t throttle servo/linkage - 7/14/2008 8:09:22 PM

slayerphonics

Posts: 2093
Joined: 3/2/2007
From: Daytona Beach, FL, USA
Status: online

Most people are blowing the cheap weak stock servo, if your blowing high dollar servos your doing something wrong, i've run a hi-tec 685mg for about 8 months with problems, but i did blow the stock servo,

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Post #: 6

RE: questions about 8-t throttle servo/linkage - 7/14/2008 8:14:41 PM

rebelracer246

Posts: 499
Joined: 4/22/2008
From: springfield, OH, USA
Status: offline

i only blew a cheap servo but i havent blew a good servo yet

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Post #: 7

RE: questions about 8-t throttle servo/linkage - 7/14/2008 9:51:48 PM

SycoCell

Posts: 274
Joined: 1/28/2008
From: Punta Gorda, FL, USA
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I don't use those o-rings under the reciever box. I would have, but i was in the a rush to change out throttle servos right before my main began, so i lost the rings.

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Post #: 8

RE: questions about 8-t throttle servo/linkage - 7/14/2008 10:00:39 PM

K_B

Posts: 533
Joined: 5/10/2007
From: Anchorage, AK, USA
Status: offline

I'm currently running the radio tray with no o-rings and a tray stiffener and I blew out an Airtronics 358 recently. Turned out that I forgot the spacers to get the servo off the chassis. I'm pretty amazed it lasted 4 months with the beatings and vibrations it was subjected to

I just blew a Hitec 5997 this weekend. Not sure if it's the dodgy servo lead or the setup. Linkages weren't absolutely perfect but not way outta wack either. I'm hoping it's the servo lead... gonna run the o-rings from now on and see what happens.

Also, instead of o-rings, a fellow racer is using two layers of double sided servo tape instead. It still provides the necessary cushion, but you don't have to fool with threading o-rings...

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Post #: 9

RE: questions about 8-t throttle servo/linkage - 7/14/2008 10:20:55 PM

rebelracer246

Posts: 499
Joined: 4/22/2008
From: springfield, OH, USA
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im not running the orings and i am running the stiffiner and i blew a crappy servo so im not that upset

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Post #: 10

RE: questions about 8-t throttle servo/linkage - 7/14/2008 10:25:04 PM

windowlicker

Posts: 297
Joined: 2/21/2008
From: Barton, North Lincolnshire, UNITED KINGDOM
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what actually causes the servos to give out, just out of interest? Is it because the EPA has been set too far and the linkage is straining to move further under full throttle or braking?

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Post #: 11

RE: questions about 8-t throttle servo/linkage - 7/14/2008 11:17:44 PM

rebelracer246

Posts: 499
Joined: 4/22/2008
From: springfield, OH, USA
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that and its because the servo its self is twisting and they dont like to do that alot and if they hit the chassis that will crack the case and short the motor out

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Post #: 12

RE: questions about 8-t throttle servo/linkage - 7/15/2008 12:45:21 AM

K_B

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From: Anchorage, AK, USA
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quote:

ORIGINAL: windowlicker

what actually causes the servos to give out, just out of interest? Is it because the EPA has been set too far and the linkage is straining to move further under full throttle or braking?

It can be one or more of many things; EPAs, binding linkages from chassis/tray flex, improper clearance between chassis and servo, or just poor quality servos.

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Post #: 13

RE: questions about 8-t throttle servo/linkage - 7/15/2008 12:57:34 AM

SycoCell

Posts: 274
Joined: 1/28/2008
From: Punta Gorda, FL, USA
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I'm surprised the radio tray isn't aluminum. My muggy has an aluminum stock stray. Plus that muggy one is 100x faster to remove since the 4 screws are right on the top

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Post #: 14

RE: questions about 8-t throttle servo/linkage - 7/15/2008 1:20:38 AM

rebelracer246

Posts: 499
Joined: 4/22/2008
From: springfield, OH, USA
Status: offline

there is only 4 screws on the 8t and its off i can get it out quick

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