Go Back  R/C Tech Forums > General Forums > Nitro On-Road
Acme cyclone (self build) wheels tight to spin like brake is applied slightly >

Acme cyclone (self build) wheels tight to spin like brake is applied slightly

Acme cyclone (self build) wheels tight to spin like brake is applied slightly

Reply

Old 01-07-2013, 07:02 PM
  #1  
Tech Rookie
Thread Starter
 
Join Date: Jan 2013
Posts: 2
Default Acme cyclone (self build) wheels tight to spin like brake is applied slightly

Hi.

I got an Amce cyclone rc car for Christmas and have finished building it. The wheels should spin freely, I would imagine, but they are tight to spin, to give an example of how I mean, it feels like the brake is being applied slightly.

It is not a brake issue though as the brake disc has sufficient room between the brake pads.

I have tried taking the differentials (front and rear) out and rebuilding them but the 4 wheels are still rather tight to spin by hand. They do turn, but no matter how fast I try to spin any wheel, as soon as I let go the wheel instantly stops spinning.

Any ideas of what the problem could be?

Thanks!
StephenIrwin is offline  
Reply With Quote
Old 01-08-2013, 11:14 AM
  #2  
Tech Rookie
Thread Starter
 
Join Date: Jan 2013
Posts: 2
Default

Any help would be appreciated
StephenIrwin is offline  
Reply With Quote
Old 01-08-2013, 01:57 PM
  #3  
Tech Elite
 
blis's Avatar
 
Join Date: May 2008
Location: Brisbane
Posts: 3,456
Default

Originally Posted by StephenIrwin View Post
Any help would be appreciated
Remove the side belt.
Check rear versus front.
If front is ok and rear is tight
Check clutch and 2 speed
If 2 speed and clutch are free
Check rear pullleys, belts may be too tight or lay shaft.
If rear is still binding.
Remove diffs and check each hub separately..

NOTE: there will always be some play in the wheel hubs, the wheels will have side movement to be free.
blis is offline  
Reply With Quote
Old 01-08-2013, 05:37 PM
  #4  
Tech Addict
 
scary_jerry's Avatar
 
Join Date: May 2011
Location: Utah
Posts: 540
Smile

I was impressed with 'Blis's' attack on the problem and I watched some 'Youtube' videos because I didn't know what an Acme Cyclone was. Some of the videos didn't lead me to believe that that car is much of a 'free-rolling' animal anyway. I just grabbed my brand-new HPI Sprint (belt-drive electric) and tried rolling it and now feel that the belt-drive cars have an inherent resistance that feels like the brake is dragging. Turning one wheel gets the diff. friction involved and pushing the car on a smooth surface got no 'coast' at all.

Good Luck
scary_jerry is offline  
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Terms of Service