R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 08-21-2007, 07:04 AM   #1
Tech Regular
 
Loveless's Avatar
 
Join Date: May 2007
Location: Concrete vietnam
Posts: 453
Default Front belt stripping ...

Hey fellas, i have a problem with my front belt stripping out on my MRX4R seems every time i go out for practice im pull the car off the track check it out and theres that belt residue, which tells me my belts stripped.....
__________________
AIRTRONICS/KEVLAR R.D./MUGEN FUEL/PARMA, CENTRAL BODIES/MUGEN SEIKI/PICCO ENGINES/JP ENGINES/ BELTRANS WHEELS AND HOBBIES, KAMIKAZI RACING.

"Free your mind, and your ass will follow"...
Loveless is offline   Reply With Quote
Old 08-21-2007, 08:23 AM   #2
Tech Elite
 
Join Date: Aug 2003
Location: Henderson, NV
Posts: 4,148
Trader Rating: 28 (100%+)
Send a message via AIM to Scott Fisher
Default

Quote:
Originally Posted by Loveless View Post
Hey fellas, i have a problem with my front belt stripping out on my MRX4R seems every time i go out for practice im pull the car off the track check it out and theres that belt residue, which tells me my belts stripped.....
1/8th scales can be very hard on front belts. When I first got my MRX I was going through 2-3 each day for the first weekend or two. If you hit stuff (especially if you don't get off the power) you will strip the belt. Obviously you want to make sure the car is built correctly, but even then you can strip belts if you hit anything.
__________________
| Capricorn | Ybslow | Proline-Protoform | Johnny Bravo Racing | Desoto Racing | Murnan Modified | Matrix Tires | Powermaster Fuel |
Scott Fisher is offline   Reply With Quote
Old 08-21-2007, 08:38 AM   #3
Tech Master
 
cdelong's Avatar
 
Join Date: Jul 2004
Location: The Sunshine State
Posts: 1,805
Trader Rating: 12 (100%+)
Default

Keep the belts tight enough with the eccentrics, but not too tight. I generally ran mine tight and when they got loose I just replaced them. I always slap on a new set of belts for the mains. Save the good used ones for practice and quailfiers.

It also gives you plenty of practice swapping belts..... 30 minutes to swap both F & R belts is good

Keep your pulleys clean. I use a mechanical pencil to clean between the teeth. The graphite gives a little lubrication as well and minimizes future buildup between the teeth.

Kevlar belts will "chip" teeth off and the rubber belts survive impacts a tad better, but they shred suddenly with prolonged use. I tend to use kevlar and inspect between every run. A small "chip" on one tooth in the front will get worse very quickly. A small chip in the rear will survive a bit longer.
__________________
KYOSHO EVOLVA
35PLUS21
FUTABA 3PKS/KO PROPO
BYRON'S FUEL/TWISTER TIRES
cdelong is offline   Reply With Quote
Old 08-21-2007, 11:30 AM   #4
Tech Fanatic
 
Join Date: Dec 2006
Location: Pacifica, Ca
Posts: 788
Trader Rating: 6 (100%+)
Default

I went to the wide front belt conversion and haven't stripped a front belt since.
JASON MAC is offline   Reply With Quote
Old 08-21-2007, 11:55 AM   #5
Tech Champion
 
Roelof's Avatar
 
Join Date: Aug 2007
Location: Holland
Posts: 6,288
Send a message via ICQ to Roelof
Default

I made a belt tensioner into the upper plate.

The bearings are pushing the belt better arround the 16t puley, it is almost pushing the belt on the puley. Since I am using this I can run several races without changing the belt.
Attached Thumbnails
Front belt stripping ...-belttensioner.jpg  
__________________
The quality of an answer comes with the quality of the question.
Roelof is online now   Reply With Quote
Old 08-21-2007, 12:21 PM   #6
Tech Champion
 
gashuffer's Avatar
 
Join Date: Nov 2006
Location: RcVille
Posts: 5,230
Trader Rating: 48 (100%+)
Default

Quote:
Originally Posted by Roelof View Post
I made a belt tensioner into the upper plate.

The bearings are pushing the belt better arround the 16t puley, it is almost pushing the belt on the puley. Since I am using this I can run several races without changing the belt.
Thats Trick.
__________________
T-Sal
gashuffer is offline   Reply With Quote
Old 08-21-2007, 12:48 PM   #7
Tech Champion
 
Roelof's Avatar
 
Join Date: Aug 2007
Location: Holland
Posts: 6,288
Send a message via ICQ to Roelof
Default

As seen from the side (same pic as in the MRX4-R thread)

__________________
The quality of an answer comes with the quality of the question.
Roelof is online now   Reply With Quote
Old 08-21-2007, 08:56 PM   #8
Tech Addict
 
V for Victory's Avatar
 
Join Date: Dec 2006
Location: South Pasadena CA.
Posts: 644
Send a message via AIM to V for Victory
Default

oo that is too kool. I had this problem with my 4r. Check the front oneway to see if it has play. 1 shim is all it takes.
__________________
SUN VALLEY SPEEDWAY
MUGEN MTX4R-NINJA
MRX4R-NINJA
RTS!
V for Victory is offline   Reply With Quote
Old 08-22-2007, 01:38 AM   #9
Tech Regular
 
Perez's Avatar
 
Join Date: Aug 2003
Location: Santa Cruz
Posts: 319
Trader Rating: 4 (100%+)
Default

run serpent belts on your car!!
Perez is offline   Reply With Quote
Old 08-22-2007, 02:06 AM   #10
Tech Champion
 
Roelof's Avatar
 
Join Date: Aug 2007
Location: Holland
Posts: 6,288
Send a message via ICQ to Roelof
Default

Quote:
Originally Posted by Perez View Post
run serpent belts on your car!!
Makes no difference......
__________________
The quality of an answer comes with the quality of the question.
Roelof is online now   Reply With Quote
Old 08-22-2007, 04:26 AM   #11
Tech Elite
 
quietstorm76's Avatar
 
Join Date: Apr 2005
Location: Atlanta
Posts: 2,265
Trader Rating: 10 (100%+)
Default

I had the same problem with the front belt. At the end of every main my front belt was stripped, even if I didn't hit anything. I just started putting the eccentrics in the tightest position and that solved my problem. The car isn't as free at first but it loosens up but it's not as loose as the stock setting.
__________________
Team Shepherd USA:Nugget's Ranch Raceway
Primary Weapon: ?
Secondary Weapon: ?
Tires>>> I don't know yet
quietstorm76 is offline   Reply With Quote
Old 08-22-2007, 04:53 AM   #12
Tech Addict
 
Ryan41's Avatar
 
Join Date: Mar 2007
Location: Gold Coast, Australia
Posts: 635
Trader Rating: 8 (100%+)
Send a message via MSN to Ryan41
Default

Conditions msut be different here in Australia.. have only ever stripped one belt..and that was from debris (a 3mm screw) that i picked up on the track.. I replace the belts before every race meet tho..
__________________
Capricorn Tourer
AE TC5R- Drifter
Revo to annoy the dog
Yokomo DRB drifter for the missus.
Ryan41 is offline   Reply With Quote
Old 08-22-2007, 06:07 AM   #13
Tech Master
 
JFCJ's Avatar
 
Join Date: Mar 2004
Location: Cincinnati Area
Posts: 1,024
Trader Rating: 31 (100%+)
Default

For those stripping front belts, what tire split are you running?


J
__________________
* www.tsrcar.com * John's BSR Racing Tires * Serpent America * BOCA Bearings *
JFCJ is offline   Reply With Quote
Old 08-22-2007, 07:54 PM   #14
Tech Elite
 
Join Date: Nov 2003
Location: Harwood, MD
Posts: 2,526
Trader Rating: 15 (100%+)
Default

I have found that the stock belts will last twice as long as the rubber belts.


What is the wide belt up-grade?
THE DOCTOR is offline   Reply With Quote
Old 08-22-2007, 08:00 PM   #15
Tech Champion
 
BuggyKing's Avatar
 
Join Date: Oct 2006
Location: Huntington Beach, Ca
Posts: 7,919
Trader Rating: 17 (100%+)
Default

Could be that it is rubbing up against something. Also check you belt tension make sure it is not to tight.
__________________
Our government is a #$%$ joke, from the head jester on down
RIP Mike M
BuggyKing is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
HPI RS4-MT FRONT BELT PART # A244 beemerfan Electric Off-Road 13 07-13-2009 10:41 AM
gpx-4 on-road FRONT BELT(newbie Q) Dave_x8 Nitro On-Road 3 12-04-2007 12:56 AM
Quickest way to change out front belt. Loveless Nitro On-Road 7 09-19-2007 08:50 PM
Front belt for Serpent 950R Yellowtaro R/C Items: Wanted to Buy 0 08-21-2006 11:39 AM
Overly Tight Front Belt DIMO Electric On-Road 5 07-14-2005 02:53 AM



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 02:54 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net