Hi dude im having the same problem with braking rear belts two belts and not a full run off battery yet waiting for local hobbies store for more belts
..im also using gear diff with 13.5 turn motor 84 spur and 32 pinion front all good ???
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| PROBLEM - LOSEN TO MANY REAR BELTS https://setup.teamxray.com/xsetup/legacy/viewtopic.php?f=8&t=12455 |
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| Author: | Salinet [ Sat Mar 17, 2012 01:26:39 ] |
| Post subject: | PROBLEM - LOSEN TO MANY REAR BELTS |
Hi everyone, I'm having here to many problems with rear belt on T3 2012 with Gear diff. Is this only my problem or anyone else is having the same problem? Please, any tips? |
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| Author: | Skiddins [ Sat Mar 17, 2012 02:19:05 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
| Author: | Salinet [ Sat Mar 17, 2012 03:10:10 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
When you tight it you have no problem anymore? |
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| Author: | Salinet [ Sat Mar 17, 2012 03:16:38 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
Here in our track.... I break 2 and other 5 drivers broke 3 or 4 each one! Something is wrong. Last year nobody had problem with their belts. |
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| Author: | Skiddins [ Sat Mar 17, 2012 03:33:01 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
| Author: | Salinet [ Sat Mar 17, 2012 03:41:25 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
Anyone from XRAY could help us? I will test tomorrow one more time. Which motor you use? |
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| Author: | Skiddins [ Sat Mar 17, 2012 13:10:25 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
13.5 and 10.5 |
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| Author: | Salinet [ Sat Mar 17, 2012 13:45:46 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
We are using 10.5 motor with Supercharger software. Let's see what happens. |
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| Author: | Ruben_qlc [ Sat Mar 17, 2012 19:12:27 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
I run with motor 10.5 since 2 months ago and I never broke the rear belt. But is true that the belt is too tight, I must to put in the middle hole for best tension of this. Check that the screws of the spur are on the left (on motor side). |
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| Author: | David_Ehrbar [ Sun Mar 18, 2012 11:38:27 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
The geardiff has a slightly larger diameter than the balldiff. This leads to a higher belt-tenstion with the same setting as before. I also broke some belts last year, until I used less belt tension. Of course the wear of the belts is higher than with a balldiff, because there is more load on it than before. But if your belt breaks after only 20 batteries, you have too much tension in it. If it jumps over, making a clicking noise and the belt dies because of tooth-wear, your belt tension is too low, |
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| Author: | Green Wing [ Sun Mar 18, 2012 15:55:48 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
| Author: | Salinet [ Sun Mar 18, 2012 17:15:30 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
| Author: | David_Ehrbar [ Sun Mar 18, 2012 20:06:06 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
When you go full throttle out of slow corners with the geardiff, there is a huge load on the rear belt. And even more when the track is bumpy, because the wheels can slip and when they touch the ground again, there is a shock going through the drivetrain. With the balldiff there was an element which could relief this shock (balls slipping on the washers), but with the geardiff all torque has to go through the belt. The difference in diameter is only very small, but you can measure it with a caliper gauge. I think this comes from tolerances. If the belts break on all steps of the excentric holders, there is not much you can do except accelerate more smooth. Maybe you have a lot of wheel slip while accelerating out of corners. Then, if you accelerate more smooth, you will also get faster laptimes. |
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| Author: | bbn [ Sun Mar 18, 2012 22:39:52 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
I have run a 5.5T and 5.0T for at long time with one belt. Something is very wrong. Check for sharp objects on the belt drives. I only broke one when someone reared me and the side of the diff. broke and cut the belt. |
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| Author: | Salinet [ Mon Mar 19, 2012 00:54:35 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
| Author: | Salinet [ Mon Mar 19, 2012 00:59:44 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
I will test for more tension on it! I just test middle no less tension. Now, I will test middle for more tension. |
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| Author: | seaton-b [ Mon Mar 19, 2012 04:09:02 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
Hi dude im having the same problem with braking rear belts two belts and not a full run off battery yet waiting for local hobbies store for more belts ..im also using gear diff with 13.5 turn motor 84 spur and 32 pinion front all good ??? |
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| Author: | Skiddins [ Mon Mar 19, 2012 14:10:22 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
The HPI rear belt 66494 apparently also fits the T3 |
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| Author: | kartdemon [ Mon Mar 19, 2012 15:01:41 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
On the layshaft check the play on the 20tooth pulleys where the pin goes through the layshaft. Within the pulleys the slot for the pin can have excessive play. This can give a bigger jolt as you accelerate hard. If so just rotate the pulleys so the pin goes through the unused slot in the 20tooth pulleys. Both slots on mine are heavily worn so changing my pulleys this week. There will still be slight play but try and get it as best as you can. I may try and make it a little tighter somehow. But less play will also help under braking. |
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| Author: | Salinet [ Mon Mar 19, 2012 15:06:29 ] |
| Post subject: | Re: PROBLEM - LOSEN TO MANY REAR BELTS |
Last year with ball diff I broke no belts at all! So... I thinking about ball diff test. |
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