Go Back   RCCrawler Forums > RCCrawler General Tech > Electronics
Loading

Notices

Thread: new motor+ESC problem

Reply
 
LinkBack Thread Tools Display Modes
Old 11-03-2011, 08:58 AM   #1
Rock Stacker
 
Join Date: Sep 2011
Location: over seas
Posts: 80
Angry new motor+ESC problem

i just got a reedy radon 17T motor and digital esc off ebay i got them in and installed on the stock reciever for the axial wraith. Took the truck out turned it on the esc made a constant sound unless the trigger was moved it went forward 5 ftt then stopped but went in reverse like normal operation but wouldnt go forward and the noise stopped a few seconds the noise returned and i could go forward but only a few ft before it would do the same thing it goes in reversw like normal all the time. The esc light goes out after a few seconds then comes back onand works like normal then turns off again battery is fully charged and tm is working normal. thx for the help any that you can give is appreciated.
wraith_1986 is offline   Reply With Quote
Sponsored Links
Old 11-04-2011, 03:31 AM   #2
Rock Stacker
 
Join Date: Sep 2011
Location: over seas
Posts: 80
Default update

ok i got the esc and motor working now thx to some guys off BYT but now the car goes fwd in reverse speed and vise versa any ideas?
wraith_1986 is offline   Reply With Quote
Old 11-04-2011, 03:38 AM   #3
Rock Crawler
 
Join Date: Mar 2008
Location: 920 Valley of the Fox
Posts: 768
Default

Change the direction of Ch. 2 (throttle) or switch the motor wires.
R/CMaxximus5.0 is offline   Reply With Quote
Old 11-04-2011, 03:42 AM   #4
Newbie
 
Join Date: Sep 2011
Location: Ft. Wainwright, AK
Posts: 32
Default

Did the ESC come with a programming card?
bcbsox is offline   Reply With Quote
Old 11-04-2011, 04:50 AM   #5
Rock Crawler
 
Join Date: May 2009
Location: Queensland, Australia
Posts: 610
Default

Those motors are locked in advanced timing and aren't adjustable.
So when you flip the wires and/or throttle position on the radio it will be running retarded timing, which is bad news. It will burn up the motor pretty quick.
WIDELOAD is offline   Reply With Quote
Old 11-04-2011, 06:41 AM   #6
Rock Stacker
 
Join Date: Sep 2011
Location: over seas
Posts: 80
Default

ok so what am i suppose to do to change the speeds the throttle reverse makes the fwd trigger go back wards and vise versa changing the wires around does nothing i put a different motor to it and it does the same thing so i know its the esc and there was no program card that i got with it.
wraith_1986 is offline   Reply With Quote
Old 11-04-2011, 07:32 AM   #7
Pebble Pounder
 
Join Date: Mar 2011
Location: Aurora, CO
Posts: 197
Default

Pull a differential cover off and verify if the truck is assembled from the factory correctly (differential ring gear on correct side of pinion). Compare it with what your instruction manual says.

If it is on the wrong side, you will either need to swap the differentials around and risk running into the short shaft issue, or just get another motor that can be reversed safely.

Marcus

Last edited by Draggermirage; 11-04-2011 at 09:07 AM.
Draggermirage is offline   Reply With Quote
Old 11-04-2011, 09:29 AM   #8
RCC Addict
 
Join Date: Feb 2008
Location: Tekin, ID
Posts: 1,940
Default

Quote:
Originally Posted by Draggermirage View Post
Pull a differential cover off and verify if the truck is assembled from the factory correctly (differential ring gear on correct side of pinion). Compare it with what your instruction manual says.

If it is on the wrong side, you will either need to swap the differentials around and risk running into the short shaft issue, or just get another motor that can be reversed safely.

Marcus
+1, easiest thing to do would be to flip the diffs.
Ty@Tekin is offline   Reply With Quote
Old 11-04-2011, 10:05 AM   #9
RCC Addict
 
Join Date: Oct 2008
Location: south caki laki again
Posts: 1,695
Default

Big question is did the truck perform normally before the motor esc change?
hbj069 is offline   Reply With Quote
Old 11-04-2011, 11:53 AM   #10
Rock Stacker
 
Join Date: Sep 2011
Location: over seas
Posts: 80
Default

the car performed perfect until the esc died which caused me to get new it was a RTR wraith everything ran smooth so i know the diffs and everything is in correctly. The new esc is now the problem i hooked the old motor up to it and it did the same thing so im having esc issues i contacted associated and they are telling me to do what i have already did and axial wont return my email cuz im pretty sure the old esc is still under warrenty.
wraith_1986 is offline   Reply With Quote
Old 11-04-2011, 11:59 AM   #11
Pebble Pounder
 
Join Date: Mar 2011
Location: Aurora, CO
Posts: 197
Default

It's not necessarily assembled "right" from the factory. Mine was a RTR Wraith and it had the differentials installed backward

Only time I found out was when I went to install a new motor as well.

Check the differentials and I'll bet yours are "backward".

Marcus
Draggermirage is offline   Reply With Quote
Old 11-04-2011, 12:04 PM   #12
Rock Stacker
 
Join Date: Sep 2011
Location: over seas
Posts: 80
Default

i ran it for two monthes like i got it without issue
wraith_1986 is offline   Reply With Quote
Old 11-04-2011, 12:41 PM   #13
Pebble Pounder
 
Join Date: Mar 2011
Location: Aurora, CO
Posts: 197
Default

It will have acted "normal" for those months. Axial assembled some of the Wraiths with the differentials reversed and the motor reversed.

I suspect this was in an effort to get around the short shaft issue without issuing new axles.

Check your differentials.

Marcus
Draggermirage is offline   Reply With Quote
Old 11-05-2011, 08:19 AM   #14
I wanna be Dave
 
Join Date: Nov 2010
Location: 07456 N. NJ USofA
Posts: 8,314
Default

When you installed the new ESC, did you calibrate it to the RX?
You say "digital ESC", is that the brand? If not, what is the brand & model ESC.
Charlie-III is offline   Reply With Quote
Old 11-05-2011, 05:30 PM   #15
Rock Stacker
 
Join Date: Sep 2011
Location: over seas
Posts: 80
Default

its an associated xp (sc200)
wraith_1986 is offline   Reply With Quote
Old 11-07-2011, 01:02 PM   #16
Quarry Creeper
 
Join Date: Aug 2011
Location: not south enough
Posts: 274
Talking GOOD CALL dude

Quote:
Originally Posted by Ty@Tekin View Post
+1, easiest thing to do would be to flip the diffs.
So I installed a XL-5 esc on my Crawler king and the esc is backwards, it is no problem I just reverse the wires with the 21turn titan 0 degree timing motor, but when i ran a 17 turn radon it was noticably slower forward than in reverse, hence why I went with the titan motor, but THANK YOU..

All I gotta do is flip my diffs... Awesome
nut_up_racing is offline   Reply With Quote
Old 11-07-2011, 01:07 PM   #17
Quarry Creeper
 
Join Date: Aug 2011
Location: not south enough
Posts: 274
Question

Quote:
Originally Posted by WIDELOAD View Post
Those motors are locked in advanced timing and aren't adjustable.
So when you flip the wires and/or throttle position on the radio it will be running retarded timing, which is bad news. It will burn up the motor pretty quick.
How quick is "pretty quick"? I had the same motor on mine last night.

Do you think one 9.6V battery pack of ripping around with it reversed killed my motor? It was so friggin hot when I was done, but still wicked fast til the battery drained
nut_up_racing is offline   Reply With Quote
Old 11-08-2011, 12:11 AM   #18
Rock Crawler
 
Join Date: May 2009
Location: Queensland, Australia
Posts: 610
Default

Quote:
Originally Posted by nut_up_racing View Post
How quick is "pretty quick"? I had the same motor on mine last night.

Do you think one 9.6V battery pack of ripping around with it reversed killed my motor? It was so friggin hot when I was done, but still wicked fast til the battery drained
Most likely the exact the length of time yours took to cook.

Retarded timing does very nasty things to a brushed motor, and even worse with relatively high voltage like you were running.
It would have been even faster if it was running the correct direction.
WIDELOAD is offline   Reply With Quote
Old 11-08-2011, 05:44 AM   #19
I wanna be Dave
 
Join Date: Nov 2010
Location: 07456 N. NJ USofA
Posts: 8,314
Default

Quote:
Originally Posted by nut_up_racing View Post
How quick is "pretty quick"? I had the same motor on mine last night.

Do you think one 9.6V battery pack of ripping around with it reversed killed my motor? It was so friggin hot when I was done, but still wicked fast til the battery drained
Heat KILLS the magnets, it's also hard on the comm. You may/may not notice the difference after the overheat, but you lost some performance.
To answer your question, a lot depends on the size of the pack. If you ran a small pack, the motor just got hot. If you ran a high capacity pack, the whole motor is throughly heat soaked and damaged the magnets.
Charlie-III is offline   Reply With Quote
Reply



Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 07:35 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.
Copyright 2004-2014 RCCrawler.com