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Front belt stripping ...

Front belt stripping ...

Old 08-21-2007, 06:04 AM
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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.....
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Old 08-21-2007, 07:23 AM
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Originally Posted by Loveless
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.
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Old 08-21-2007, 07:38 AM
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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.
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Old 08-21-2007, 10:30 AM
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I went to the wide front belt conversion and haven't stripped a front belt since.
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Old 08-21-2007, 10:55 AM
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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  
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Old 08-21-2007, 11:21 AM
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Originally Posted by Roelof
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.
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Old 08-21-2007, 11:48 AM
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As seen from the side (same pic as in the MRX4-R thread)

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Old 08-21-2007, 07:56 PM
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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.
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Old 08-22-2007, 12:38 AM
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run serpent belts on your car!!
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Old 08-22-2007, 01:06 AM
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Originally Posted by Perez
run serpent belts on your car!!
Makes no difference......
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Old 08-22-2007, 03:26 AM
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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.
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Old 08-22-2007, 03:53 AM
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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..
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Old 08-22-2007, 05:07 AM
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For those stripping front belts, what tire split are you running?


J
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Old 08-22-2007, 06:54 PM
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I have found that the stock belts will last twice as long as the rubber belts.


What is the wide belt up-grade?
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Old 08-22-2007, 07:00 PM
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Could be that it is rubbing up against something. Also check you belt tension make sure it is not to tight.
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