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02-12-2015, 05:05 PM | #1 |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Axial Wraith slipper clutch adjustment
...is a huge pain in the butt, I'm sure you've noticed. The slipper clutch is buried inside the transmission tunnel, and there's suspension linkages, a driveshaft, a servo, and the bottom edge of the receiver box all conspiring to make it impossible to reach without dropping the transmission. Since the slipper clutch needs to be adjusted periodically as the pads wear down and the motor ages, and occasionally needs to be loosened and re-tightened to break it loose after it gets stuck together -- and since you can't test the new setting without the transmission being bolted in-place again ---the positioning of the slipper clutch makes for a very irritating time about once every week or two, if you use your Wraith on a regular basis. However, I just realized that one of the wrenches that came with my Traxxas Summit solves this problem, allowing me to quickly adjust the slipper clutch in small increments without having to drop the transmission first: The wrench is Traxxas part 3980, and it costs two dollars: https://traxxas.com/products/parts/3980 It's cast aluminum, so it's not very strong (e.g. don't use it on wheel nuts), but it works great for this job. So much easier now. Last edited by fyrstormer; 03-30-2018 at 12:19 AM. |
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02-12-2015, 05:31 PM | #2 |
Rock Stacker Join Date: Aug 2007 Location: Ventura, Ca.
Posts: 92
| Re: Axial Wraith slipper clutch adjustment |
02-12-2015, 05:33 PM | #3 |
I joined the Band! Join Date: Dec 2014 Location: Earth
Posts: 1,188
| Re: Axial Wraith slipper clutch adjustment
If you're running lockers or spools in both axles you can just rotate one of the tires to tighten/loosen the slipper nut using the glow plug wrench.
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02-12-2015, 07:41 PM | #4 | |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Re: Axial Wraith slipper clutch adjustment Quote: Also, that part costs 10x as much as the wrench I posted. It's still very difficult to get a normal four-sided wrench into that spot, and anyway adjusting the slipper clutch by turning the wheels isn't precise enough. Yes, I did hold the drivetrain still by holding one of the wheels, but because I used the wrench I posted to turn the slipper clutch nut, I was able to get a much finer adjustment, so it's just on the safe side of stalling the motor at full throttle. Last edited by fyrstormer; 02-12-2015 at 07:43 PM. | |
02-12-2015, 08:09 PM | #5 |
I wanna be Dave Join Date: Apr 2014 Location: North Carolina
Posts: 2,254
| Re: Axial Wraith slipper clutch adjustment
Another option is to use 4 screws instead of 8 to hold the skid plate in place (the outermost 2 on each side, which is plenty strong). With only 4 screws to remove, it doesn't take long at all to drop the skid, allowing plenty of access to adjust the slipper.
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02-12-2015, 08:24 PM | #6 |
I joined the Band! Join Date: Dec 2014 Location: Earth
Posts: 1,188
| Re: Axial Wraith slipper clutch adjustment
I was referring to the Traxxas #3980 glow plug wrench you linked above, but rotating the tires while holding the slipper nut to make minor/finer adjustments would take a little practice.
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02-12-2015, 09:46 PM | #7 |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Re: Axial Wraith slipper clutch adjustment That's what I used to do while testing slipper clutch settings, but this is even easier than removing 4 screws. I don't have to remove any screws at all, and because I don't have to drop the transmission at all, I don't have to fit the wires for the motor, cooling fan, and shift-servo back into just the right place so nothing gets pinched.
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02-13-2015, 12:32 AM | #8 |
RCC Addict Join Date: Jul 2008 Location: San Diego
Posts: 1,144
| Re: Axial Wraith slipper clutch adjustment
You don't need a slipper. I installed a slipper eliminator on my wraith then was able to install the battery back a little and much lower. SDheavymetal's Wraith |
02-13-2015, 01:35 AM | #9 |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Re: Axial Wraith slipper clutch adjustment
I don't need seatbelts either, as long as I don't get in a car accident. The point of this thread is not to debate whether a slipper clutch is useful, but to inform people who have slipper clutches on their Wraiths of an easy way to adjust them without having to disassemble anything. Last edited by fyrstormer; 02-13-2015 at 01:41 AM. |
02-13-2015, 08:55 AM | #10 |
Quarry Creeper Join Date: Jul 2014 Location: North Florida.
Posts: 242
| Re: Axial Wraith slipper clutch adjustment
I know most here keep it and so was I but with the insides removed I have full access to it. Slip a flat wrench in from the windshield area to adjust. Keep check on temps. But it also lets sticks and flying dirt in.. |
02-13-2015, 09:01 AM | #11 |
RCC Addict Join Date: Aug 2013 Location: Missoula
Posts: 1,346
| Re: Axial Wraith slipper clutch adjustment
I cut a hole in the cover to clear a 550 motor and a hole to set the slipper. Had all kinds of problems with sticks and crap getting stuck in the gears. Then I threw the cover in the trash and never had another problem. I adjust my slipper until the nut stops. Never had an issue. |
02-13-2015, 10:05 AM | #12 | |
RCC Addict Join Date: Jul 2008 Location: San Diego
Posts: 1,144
| Re: Axial Wraith slipper clutch adjustment Quote:
If you slipper slips too much it will heat up the clutch nut and ruin the clutch nut. I didn't replace the nut and it just kept coming loose. So I would recommend you replace the nut if it comes loose a couple of times. Have fun with your Wraith thats what its all about! | |
02-13-2015, 10:13 AM | #13 | |
I joined the Band! Join Date: Dec 2014 Location: Earth
Posts: 1,188
| Re: Axial Wraith slipper clutch adjustment Quote:
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02-13-2015, 08:53 PM | #14 |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Re: Axial Wraith slipper clutch adjustment On my go-fast vehicles, I adjust the slipper clutch until the vehicle can just manage to pop a wheelie. On my crawlers, I adjust the slipper clutch until the motor can just barely manage to spin the slipper clutch at full throttle while I'm pinning the vehicle to the ground. That way the slipper clutch can actually do its job of limiting the maximum driveline torque to a safe level, instead of being locked.
Last edited by fyrstormer; 02-13-2015 at 08:55 PM. |
02-13-2015, 09:07 PM | #15 |
I wanna be Dave Join Date: Apr 2014 Location: North Carolina
Posts: 2,254
| Re: Axial Wraith slipper clutch adjustment
I'm still a bit puzzled as to why you're needing to adjust your slipper every week or two (and not meaning that as a criticism). For reference, my Wraith and SCX-10 both run ROC 412 3100kvs on 3s with RRP slippers, often at the hands of a 5 year-old that is only just learning to feather the throttle. Granted, we're not quite pulling weeds with them, but these rigs get run hard. I haven't yet needed to adjust the slipper on either one after 50+ hours of runtime on each. I looked at your thread and know you've done a lot to your rig. Out of curiosity, are you still running the stock slipper?
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03-31-2016, 11:13 AM | #16 |
Newbie Join Date: Jan 2016 Location: Rochester
Posts: 4
| Re: Axial Wraith slipper clutch adjustment
Well I'm glad to hear you've had good luck with your rrp slipper/spur new2rocks. I just got my pro4 this week, waterproofed lastnight as well as my mmp, just waiting for my rrp slipper to arrive now. Beefy top shaft, steel tranny gears, MIP driveshafts, should be good to go!
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03-31-2016, 11:25 AM | #17 |
Quarry Creeper Join Date: Dec 2014 Location: The Angels
Posts: 433
| Re: Axial Wraith slipper clutch adjustment
Grave Digger?
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04-01-2016, 02:55 AM | #18 | |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Re: Axial Wraith slipper clutch adjustment Quote:
I thought about getting the Robinson slipper clutch, but I don't want to run a steel spur gear, so that's not an option for me. Last edited by fyrstormer; 04-01-2016 at 03:00 AM. | |
07-05-2019, 07:54 PM | #19 |
Newbie Join Date: Jun 2019 Location: Reno
Posts: 1
| Re: Axial Wraith slipper clutch adjustment
Thanks. Very helpful.
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