Losi xxx-4

Old 06-12-2008, 10:22 PM
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QUOTE=kuzo OK, I cannot keep this slipper tightened. I got one used and the slipper is constantly loosening after I disassembled to add in ceramic bearings.


KUZO, I'm sure if you hunt thru this thread the diff slippin thing is covered.
If I remember correctly it takes cleaning the threads really really good, adding loctite then tightening the snot out of it and let it set up.
I bought a used one too but never had any issues so I left it alone so I can't say from experience.
Just dig a bit in here and you will find it.

Last edited by F N CUDA; 06-12-2008 at 10:33 PM.
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Old 06-13-2008, 07:06 AM
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If you just rebuilt the slipper with new pucks it will take a few times for it to seat. Once the slipper breaks in it will hold its setting. Locktite is not needed.
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Old 06-13-2008, 03:01 PM
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hey guys....need help again...

my 6-cell battery wont stay in place?i have it seated in the back position and it keeps going forward...causing my battery bar either to pop off its soldier or bend the pack all up.is there a newer battery hold down the will fit the newer cells that i can get?


and also still waiting to here what you all would gear a 3.5 with a 94 spur..?

lol
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Old 06-13-2008, 03:14 PM
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I'm running a 16t with a 5.5. So I would probably go down a tooth or two at least for a 3.5.
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Old 06-13-2008, 04:51 PM
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Originally Posted by morris
hey guys....need help again...

my 6-cell battery wont stay in place?i have it seated in the back position and it keeps going forward...causing my battery bar either to pop off its soldier or bend the pack all up.is there a newer battery hold down the will fit the newer cells that i can get?
Dremel the scallops so they fit the cells. This is with the posts in the stock height. The cells wont sit perfect in the chassis slots but they will sit flat with a little work.
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Old 06-14-2008, 04:48 AM
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I wish I could get my 7 cell Ener-G packs to fit in this thing. They are about 4-5 mm too long.

On another note: I put my Mamba Max in my XXX4G+ with my Orion Vortex 5.5 and got nothing but trouble. At first it wouldn't even move. So I advanced the timing incrementally from the lowest to the highest trying each setting in between. It finally moves on the highest setting but it's slow and won't go into reverse. I guess I'm giving up on this. I don't know what else to try.

Last edited by macr0w; 06-15-2008 at 05:21 AM.
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Old 06-14-2008, 08:35 PM
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thx for the info guys......
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Old 06-15-2008, 07:27 AM
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Just picked up a used xxx4g+ and I was just wondering what spare parts I might want to order right off that bat. I race at a pretty rough track, its mostly 1/8 scale nitro so it will be pretty rough. Thanks, lookin forward to running this puppy
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Old 06-15-2008, 08:36 AM
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Make sure you have these three things: front diff cover, front arms, and front spindles (and the stub bolts that you need with these). You also might want caster blocks and front towers.
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Old 06-16-2008, 05:39 PM
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Thanks, I'll order that stuff up. I also found an article on "bullet proofing" the xxx-4. We'll see how the first day at the track goes before I get into doing all of that.
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Old 06-20-2008, 05:09 AM
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hi just wondering if anyone here has taken out there slipper and run the xxxs spur gear etc was just wondering how it would go, as i normally run mine with the slipper tightend right up any way ,and i have seen guys that have locked there slippers in xx4 and xxx4 would this put to much load on the diffs. i have found on our local track which is very tight and high grip carpet that the slippers wear very fast not just on my losi but the B44, D4 etc as well .so i just thought i would see what others thought
Thanks
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Old 06-20-2008, 08:19 AM
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Mine is actually glued together. It isn't terribly hard on diffs, although you will find you have to rebuild them more often. Depends on what kind of a driver or track you are racing on too. Smooth tracks will be easier on drivetrains anyways, big rough tracks might be the problem.

hope this helps!
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Old 06-20-2008, 10:59 AM
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I working on the rear diff on my XXX4-G+. I took it all apart and put in some new bearings and stuff. I'm putting it back together now.

My question is this: How tight should I be turning the diff screw? If I crank it down the diff will barely turn. If I leave it a little loose will it come apart?

I fairly new to this vehicle and haven't quite figured it out yet.

Thanks
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Old 06-20-2008, 01:06 PM
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ball diffs have a break-in period just like most drivetrain parts you'll find in vehicles. This is no exception for the xxx4. Basically I tighten mine down all the way (but be careful not to snap any bolts or nuts) and then back between 1/8 and 1/4 turn. I run the rear looser than the front.
After you have built it this way, hold one tire of the diff, slowly work up to full throttle for about 2 seconds. Then hold the other side and do the same thing. The first time you do this the diff will loosen up quite a bit. Tighten it up and repeat until the diff hardly or doesn't seem to loosen up at all during this process. When you run your first pack through it, just listen for any barking sounds as it might loosen during your first 1-3 runs. After you have 3 packs on it, I would forget about it until it needs a rebuild.
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Old 06-20-2008, 01:18 PM
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That sounds like a good tip. Thanks
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