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09-29-2010, 11:03 PM
| #1 |
| RCC Addict Join Date: Nov 2007 Location: in the woods
Posts: 1,915
|  gear explosion
For those that have smoked gears, what kind of abuse are you exposing them to? I was pulling wheelies, doing full throttle digs, and jumping my XR10 tonight on carpet and asphalt along with binding it up so bad on the rocks that it was body slamming itself down the hill. Also, was there any warning when the failure happened or did it just grenade?
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09-29-2010, 11:29 PM
| #2 |
| I wanna be Dave Join Date: May 2006 Location: FOUR 8 OH
Posts: 4,913
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I think most cases were nailed down to improper construction, either the housings were not tightened enough or they left off the brace.
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09-29-2010, 11:39 PM
| #3 |
| Pebble Pounder Join Date: Feb 2010 Location: Spokane Valley
Posts: 166
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my truck was fine after i got it together. checked the screws three times before i put them in. i went and played around with it a bit ran three packs through it and it was fine no problems or bad sounds. the next day i did a comp and placed 8th out of twenty something people. then the next day i went out and screwed off some more. about five min in i heard a pop and lost two gears in the rear axle. so if it was a construction problem i think it would have gone at the comp. but i contacted some of the guys at axial and they are hooking me up with some new gears. so i am very pleased with them about their customer service. i just think that there are really some bad gears that made it into the kits but thats just my .02. Brent |
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09-29-2010, 11:56 PM
| #4 |
| Rock Stacker Join Date: Jan 2008 Location: Lake Almanor
Posts: 82
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Some are good some are bad you got good ones.
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09-29-2010, 11:58 PM
| #5 |
| RCC Addict  Join Date: Jun 2009 Location: California
Posts: 1,494
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I bash mine prob as hard or harder. I think you will be ok.
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09-30-2010, 12:52 AM
| #6 |
| Quarry Creeper Join Date: Sep 2009 Location: Concord
Posts: 215
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I had two flanged bearings go out in the front. Finished the course. Tore it apart and gears were fine. Well minus the small ball indent on every other tooth of the spool gear. It's holding up fine with avid / boca berrings all around.
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09-30-2010, 01:20 AM
| #7 |
| Newbie Join Date: May 2009 Location: Concord
Posts: 38
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I tore the 12T transfer gear when I had two of my bearings blow out in my front gearbox. A friend of mine has had 2 to 3 teeth on the 36T final gear get knocked off twice now both front and back. He is a way better driver than me, no where near the lead finger I have. Still have no idea why he keeps having that issue. |
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09-30-2010, 04:39 AM
| #8 |
| RCC Addict Join Date: Oct 2008 Location: south caki laki again
Posts: 1,695
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I noticed a couple of nicks in a couple of the gears during assy, Does this mean I have the brittle gears?
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09-30-2010, 11:09 AM
| #9 |
| I wanna be Dave Join Date: Jan 2009 Location: By a lake in Thornton
Posts: 2,218
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I'm rocking dual 35 turns. I did a WOT backflp of a 4 foot ledge directly onto the rear wheels yesterday, spun it in a ground roll, flip rolled and crashed into a wall. I broke the solder on 1 of my motor tabs. I have a comp this weekend. I have VP bronze bushings at home, and tomorrow I will order some replacement gears... then on saturday i will be comfortable seeing if I can break it. |
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09-30-2010, 11:25 AM
| #10 | |
| I wanna be Dave Join Date: Sep 2009 Location: Nor Cal
Posts: 2,213
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09-30-2010, 11:45 AM
| #11 |
| RCC Addict Join Date: Jun 2008 Location: Nunya Idaho...
Posts: 1,559
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Should mean Wide Open Throttle.... I was easy on mine at first but Im not too cautious any more, beat it like I beat my Bully and no problems yets except for a couple bearings. |
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09-30-2010, 12:04 PM
| #12 |
| I wanna be Dave Join Date: Jan 2009 Location: By a lake in Thornton
Posts: 2,218
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Full throttle, Wide open throttle... sorry, flyboy lingo comin out. |
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09-30-2010, 12:34 PM
| #13 | |
| I wanna be Dave Join Date: Oct 2007 Location: 801
Posts: 2,941
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10-01-2010, 01:30 AM
| #14 |
| Rock Crawler Join Date: Nov 2008 Location: kansas city
Posts: 692
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i was about 45 seconds into my very first run... first bind and i just barely gave any throttle and all i could hear was "zzzzzzzzzz" coming from the front end. not sure exactly what the gear is called but some are calling it the transfer gear... i dont believe i was being to hard on the truck. pics can be found in my build thread. |
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10-01-2010, 05:45 AM
| #15 |
| RCC Addict Join Date: Jun 2007 Location: Indian Village Pontiac
Posts: 1,910
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ok guys, I put mine together about a month ago and ran it hard as usual. I wanted to trust the axles before I came back to comping. I gained alot of trust in th axles/gears so I comped it last weekend at Michigan State Comp with prejudice. If you ask anyone there, I tried really hard to crush the gears. However they made it through the comp no problem and I was not nice to it. Bound up deep in the rocks so much so the upper links flexed hard and looked like something broke, but nope, all good!! BUT, I just couldn't leave well enough alone so decided to try and pop wheelies!!! Yep pop wheelies on a concrete driveway. Remember, I always run 35ts on 3cell lipo's. And after about 30 minutes of reverse to forward slams to ride wheelies the rear gears finally let loose!! CRUNCH!! I plan to put the stock gears back in because as hard as I beat on it, I believe they will hold up until better options become available. take care of them and they last.     |
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10-01-2010, 06:09 AM
| #16 |
| Quarry Creeper Join Date: May 2008 Location: Clarkston
Posts: 277
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I had the front spool loose two teeth, while front digging in a bind-situation. seems like the bearing blew first and took out the spool. Might not have been a gear issue at all but on of them tiny bearing balls getting between the teeth. Just guessing. Though, one has to consider by the time it broke Iīd already roughly 30-45 packs including one comp. The whole time I beat the $hiat out of it on two 17.5T brushless motors. Therefore it ainīt too bad having this kind of carnage for a new rig. I have updated bearings - including the larger bearing mod in the motor plate of the final drive stage - and everything seems fine. |
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10-01-2010, 06:15 AM
| #17 | |
| Rock Crawler Join Date: Feb 2008 Location: Golden Corral getting Fat
Posts: 607
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I think they might have got a few soft gears but most was build errors ttyl Bob C | |
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10-01-2010, 06:29 AM
| #18 |
| Newbie Join Date: Aug 2010 Location: Austin Tx
Posts: 46
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or WFO. gears normaly don't just explode. there has to be a bit too much and run for a day or 2. and then as you said pop. if the diff gears are right they'll work. I've body slamed mine a time or 2, fallen of mnt bonnnel 20' drop, or rolling down a unforgiving climb, and even did the no traction bop.( bouncing on back wheels). and that's one of the hardest thing that can be done to a diff. my diff still works. and it's been opened 2x for parts checking.
Last edited by stoneface; 10-01-2010 at 06:41 AM. |
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10-01-2010, 07:34 AM
| #19 |
| RCC Addict Join Date: Dec 2005 Location: Tucson
Posts: 1,190
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So The XR10 is not a Noob's crawler you need to buy a rtr . Ive had no problems with mine with the Vp bushings installed.
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10-01-2010, 08:21 AM
| #20 |
| RCC Addict Join Date: Nov 2007 Location: in the woods
Posts: 1,915
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Well, after the running I have done in the past couple days I have came to the conclusion the gearboxes on this crawler is pretty tough. I have now beat the XR10 at least 3 to 4 times harder then I usually drive my Losi MOA or my AX10 comp/scale rigs with no issues besides 7 lost body pins. I will be cracking the cases open this weekend to check but I am not worried. |
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