R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 05-02-2011, 05:36 PM   #2701
Tech Elite
 
GSM Storm's Avatar
 
Join Date: Jun 2006
Location: Brisbane, Australia
Posts: 2,252
Trader Rating: 112 (100%+)
Default Rear Belt

Anyone running a non Schumacher rear belt on there car, we are striping/breaking quite a few of them running mod, my son has a heavy trigger finger , size 60T x 180mm, 3.6mm wide.

Regards
Gary
__________________
Driver Gazza
Offroad - RC10 B64 (soon)
Vintage - Kyosho Tomahawk
Fantom Racing, JConcepts, Ace Hobbies/Reedy,
WTF, Plaig Bearings.
GSM Storm is offline   Reply With Quote
Old 05-02-2011, 06:38 PM   #2702
Tech Addict
 
6Venom's Avatar
 
Join Date: Jun 2008
Location: Austin, TX
Posts: 523
Trader Rating: 44 (98%+)
Default

Quote:
Originally Posted by GSM Storm View Post
We used to get the mark on the front side of the rear arms running stock, with a soft setup, not getting now with mod, heaver oil now, you could try raising the inside of the arms, as you are running the alloy hinge pin blocks.

Regards
Gary
Thanks Gary, I'll try your suggestion.
6Venom is offline   Reply With Quote
Old 05-02-2011, 08:15 PM   #2703
Tech Master
 
Brokin Racing's Avatar
R/C Tech Elite Subscriber
 
Join Date: Nov 2008
Location: Sydney Australia
Posts: 1,236
Trader Rating: 68 (100%+)
Default

Quote:
Originally Posted by GSM Storm View Post
Anyone running a non Schumacher rear belt on there car, we are striping/breaking quite a few of them running mod, my son has a heavy trigger finger , size 60T x 180mm, 3.6mm wide.

Regards
Gary
Gary,

Have you tried an Xray rear belt at all p/no 305444 61t, 183mm

If you want to give one a go, I can post one up to you to try, just PM me
__________________
Xray T4'17 - LRP - PF - Futaba - Muchmore
Brokin Racing is offline   Reply With Quote
Old 05-03-2011, 02:57 AM   #2704
Tech Champion
 
Join Date: Sep 2001
Location: Mongville
Posts: 6,973
Trader Rating: 9 (100%+)
Default

Good news for MI4 owners, too bad its a Spec R though.
Im sure schuie could come up with a very nice gear diff if they tried.
Attached Thumbnails
Schumacher Mi4-spec-r-mi4.jpg  
__________________
12th Scale - The premier class (if you can make runtime)
Besercoe is offline   Reply With Quote
Old 05-03-2011, 03:19 AM   #2705
Tech Fanatic
 
jrxs-r's Avatar
 
Join Date: May 2007
Location: Perth, Western Australia
Posts: 831
Trader Rating: 11 (100%+)
Default

Quote:
Originally Posted by 6Venom View Post
Ran a search but couldn't find anything.

I noticed a groove in all of the arms (front and rear) that appears to be caused by the wheels. I guess they are compressing under load but it looks like someone took a dremel and started cutting the arms. If this keeps up, they're going to snap. I also imagine it's really slowing down corner speed.

Has anyone run into this? Why is this happening and what's a fix? I run on asphalt with medium flex arms, neg 2 camber all around, RP36's or CS27's for rubber.

Thanks for the help!
Hey there. The grooving is pretty normal. Nothing much to stress about. It was happening on the Mi4 to the CX. If the rims are flexible, it will rub, but once the groove has been cut into the arm, it will not go further. I am using the Schumacher Rev-Lite rims, and they have a bigger inside diameter and they clear the arms fine. Also, if its that bad, try the CF arms as they flex a lot less.
__________________
Cheers,
Zack
___________________________________________________________________________
Proudly Sponsored by Stanbridges Hobbies
Serpent S411
jrxs-r is offline   Reply With Quote
Old 05-03-2011, 03:27 AM   #2706
Tech Fanatic
 
jrxs-r's Avatar
 
Join Date: May 2007
Location: Perth, Western Australia
Posts: 831
Trader Rating: 11 (100%+)
Default

Quote:
Originally Posted by GSM Storm View Post
Anyone running a non Schumacher rear belt on there car, we are striping/breaking quite a few of them running mod, my son has a heavy trigger finger , size 60T x 180mm, 3.6mm wide.

Regards
Gary
Hi Gary,

I have been chewing through rear belts a fair bit too running Mod. They used to last about 6-8 runs. Check to see if the front/rear of the car is skipping under heavy acceleration as this will cause premature wear, and anther thing to check is the center pulley if the teeth are worn. I usually replace the belt and the center pulley at the same time. I am thinking of trying out the Stock Belt (GREY) as it is a lot more pliable and should wrap around the pulley and teeth better. Once of the local racers running stock has had his rear belt since mid last year, and the condition of it is almost like new. Mind you, he is still running the earlier white center pulley as well.

In the meantime, just keep an eye out on the rear belt tension. Tighten it if needed. After about 4-5 runs, I am on the tightest setting on the eccentrics, and the belt usually lets go 2-4 runs after that.
__________________
Cheers,
Zack
___________________________________________________________________________
Proudly Sponsored by Stanbridges Hobbies
Serpent S411
jrxs-r is offline   Reply With Quote
Old 05-03-2011, 05:48 AM   #2707
Tech Addict
 
6Venom's Avatar
 
Join Date: Jun 2008
Location: Austin, TX
Posts: 523
Trader Rating: 44 (98%+)
Default

Quote:
Originally Posted by jrxs-r View Post
Hey there. The grooving is pretty normal. Nothing much to stress about. It was happening on the Mi4 to the CX. If the rims are flexible, it will rub, but once the groove has been cut into the arm, it will not go further. I am using the Schumacher Rev-Lite rims, and they have a bigger inside diameter and they clear the arms fine. Also, if its that bad, try the CF arms as they flex a lot less.
Thanks for the info.
6Venom is offline   Reply With Quote
Old 05-03-2011, 07:34 AM   #2708
Tech Master
 
NiMo's Avatar
 
Join Date: May 2004
Location: Luton, England
Posts: 1,704
Default

Quote:
Originally Posted by 6Venom View Post
Here are a couple of the rear. You can see the cut into both the front and rear side of the arm. The fronts have the same cut but only on the front side. Thanks again.
Have just noticed that on mine
Appears that the wheel touches when suspension is compressed
NiMo is offline   Reply With Quote
Old 05-03-2011, 07:50 AM   #2709
Tech Addict
 
6Venom's Avatar
 
Join Date: Jun 2008
Location: Austin, TX
Posts: 523
Trader Rating: 44 (98%+)
Default

Quote:
Originally Posted by NiMo View Post
Have just noticed that on mine
Appears that the wheel touches when suspension is compressed
Finding that on mine really surprised me. Considering the amount it rubs, I would imagine corner speed is taking a hit. I just never noticed it before.
6Venom is offline   Reply With Quote
Old 05-03-2011, 08:30 AM   #2710
Tech Fanatic
 
jrxs-r's Avatar
 
Join Date: May 2007
Location: Perth, Western Australia
Posts: 831
Trader Rating: 11 (100%+)
Default

I usually dremel mine out using the old ones as a template...
__________________
Cheers,
Zack
___________________________________________________________________________
Proudly Sponsored by Stanbridges Hobbies
Serpent S411
jrxs-r is offline   Reply With Quote
Old 05-03-2011, 09:20 PM   #2711
Tech Master
 
Brokin Racing's Avatar
R/C Tech Elite Subscriber
 
Join Date: Nov 2008
Location: Sydney Australia
Posts: 1,236
Trader Rating: 68 (100%+)
Default

Quote:
Originally Posted by Besercoe View Post
Good news for MI4 owners, too bad its a Spec R though.
Im sure schuie could come up with a very nice gear diff if they tried.
Woohoo! that willl make another tick
__________________
Xray T4'17 - LRP - PF - Futaba - Muchmore
Brokin Racing is offline   Reply With Quote
Old 05-03-2011, 09:34 PM   #2712
Tech Champion
 
skypilot's Avatar
 
Join Date: Mar 2007
Posts: 9,514
Trader Rating: 14 (100%+)
Default

Quote:
Originally Posted by Besercoe View Post
Good news for MI4 owners, too bad its a Spec R though.
Im sure schuie could come up with a very nice gear diff if they tried.
theres no news like old news
__________________
#49, #25a, #91, #7, #12 the ones to watch.... UPDATE. #12 is your new AMA GNC #1

A Northwest Team of Positive actions
skypilot is offline   Reply With Quote
Old 05-03-2011, 11:47 PM   #2713
Tech Master
 
Join Date: Jul 2008
Location: Hobart TAS Australia
Posts: 1,037
Trader Rating: 17 (100%+)
Default

Quote:
Originally Posted by jrxs-r View Post
Hi Gary,

I have been chewing through rear belts a fair bit too running Mod. They used to last about 6-8 runs. Check to see if the front/rear of the car is skipping under heavy acceleration as this will cause premature wear, and anther thing to check is the center pulley if the teeth are worn. I usually replace the belt and the center pulley at the same time. I am thinking of trying out the Stock Belt (GREY) as it is a lot more pliable and should wrap around the pulley and teeth better. Once of the local racers running stock has had his rear belt since mid last year, and the condition of it is almost like new. Mind you, he is still running the earlier white center pulley as well.

In the meantime, just keep an eye out on the rear belt tension. Tighten it if needed. After about 4-5 runs, I am on the tightest setting on the eccentrics, and the belt usually lets go 2-4 runs after that.
anyone else finding the CX centre pulley seems to be softer than the white version?
__________________
Team Awesomatix
R1 Wurks
RC Maker.com
Southern Tasmania Model Car Club
lethallee69 is offline   Reply With Quote
Old 05-04-2011, 12:40 AM   #2714
Tech Fanatic
 
jrxs-r's Avatar
 
Join Date: May 2007
Location: Perth, Western Australia
Posts: 831
Trader Rating: 11 (100%+)
Default

Quote:
Originally Posted by lethallee69 View Post
anyone else finding the CX centre pulley seems to be softer than the white version?
Yes... most definately. I think that is what causes most of the wear on the belt IMO. I have 1 white one that was painted black (can see it on the inside of hte threaded holes where the spur bolts on) and that hasn't worn as much as the all-black ones.
__________________
Cheers,
Zack
___________________________________________________________________________
Proudly Sponsored by Stanbridges Hobbies
Serpent S411
jrxs-r is offline   Reply With Quote
Old 05-04-2011, 01:14 AM   #2715
Tech Master
 
Brokin Racing's Avatar
R/C Tech Elite Subscriber
 
Join Date: Nov 2008
Location: Sydney Australia
Posts: 1,236
Trader Rating: 68 (100%+)
Default

Quote:
Originally Posted by lethallee69 View Post
anyone else finding the CX centre pulley seems to be softer than the white version?
+ 1 here..
__________________
Xray T4'17 - LRP - PF - Futaba - Muchmore
Brokin Racing is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hot Bodies Cyclone Frank McKinney Electric On-Road 19761 10-14-2016 03:50 AM
Schumacher Corner meche Electric On-Road 27727 07-20-2015 07:38 PM
2009 SEQ Onroad Interclub LOSI123 Australian Racing 348 01-06-2010 10:08 AM
Racecraft TC Challange 2 Kylelim Singapore R/C Racers 82 08-01-2009 12:07 AM
Schumacher Mi3/3.5 parts and roller!!! Eastcoast13.5 R/C Items: For Sale/Trade 21 07-19-2009 01:15 PM
Opinions on TC's hippie Electric On-Road 58 07-08-2009 10:14 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -7. It is currently 07:59 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net