majin built a ryft!

[WickedFog]

For clarification...

If assembled correctly, and the internal bearing bore (one towards the diff) in the spindle is ok, the axles cannot pull out
Do you remember, you had this exact same problem on the rear axle of your CEN 450? The exact same thing here prevents that rear bearing from pulling through the spindle.

Show me a pic of the parts laid out in the exact order you have them installed. Take the wheel nut off. Move it to the far right. Next put the wheel on the left of the wheel nut. Left of that, put the wheel hex/pin. Left of that should be a the stupid brake disc/caliper if you have them installed. Left of that should be a small bearing (LOSA6940). Left of that should be the spindle and king pins/screws. Left of that shoild be the bigger bearing (AXA1243). Left of that should be the front axle.

Just like your CEN450, thst inner brsring (AXA1243) Should NOT pass through the spindle. If it does, show me the inside of that spindle, looking at it from the back, with the bearing next to it.

See the red circled besring? It sets against the step in the axle. The axle cannot pull through that bearing.

See the lip in the back of this bearing bote? The bearing cannot pull through that lip.

So since the bearing cannot pull through that lip, and the axle cannot pull through the bearing, the axle cannot come out of therr unless something is wrong.

 

[WickedFog]

I will see if I can make you a video of the aasembly tear down today @majin

No promises, because that would require a lot of shifting things around. But I gotta learn you a thing or two about axle assemblies

 

[majin]

This might be a stupid question but I'll ask anyways...
Is the servo so strong that its bending the plastic and pulling the axles out of the housing slightly? Enough to slip at least.
Are your endpoints set?

Endpoints are set and its all aluminum so it shouldn't be

 

[majin]

For clarification...
View attachment 246651

If assembled correctly, and the internal bearing bore (one towards the diff) in the spindle is ok, the axles cannot pull out
Do you remember, you had this exact same problem on the rear axle of your CEN 450? The exact same thing here prevents that rear bearing from pulling through the spindle.

Show me a pic of the parts laid out in the exact order you have them installed. Take the wheel nut off. Move it to the far right. Next put the wheel on the left of the wheel nut. Left of that, put the wheel hex/pin. Left of that should be a the stupid brake disc/caliper if you have them installed. Left of that should be a small bearing (LOSA6940). Left of that should be the spindle and king pins/screws. Left of that shoild be the bigger bearing (AXA1243). Left of that should be the front axle.

Just like your CEN450, thst inner brsring (AXA1243) Should NOT pass through the spindle. If it does, show me the inside of that spindle, looking at it from the back, with the bearing next to it.

See the red circled besring? It sets against the step in the axle. The axle cannot pull through that bearing.
View attachment 246649

See the lip in the back of this bearing bote? The bearing cannot pull through that lip.
View attachment 246650

So since the bearing cannot pull through that lip, and the axle cannot pull through the bearing, the axle cannot come out of therr unless something is wrong.

I'm going to take it apart when I get the new shafts in so I'm not doing it twice or having parts lying around loose for the kittens to lose lol
It's a weird issue
When i got home that day I opened the front diff cover and the axles were fine fully seated. I'm also considering that I snapped the old shafts
I'll find out more this weekend and post the newer info then

 

[WickedFog]

I'm goingntovtakevit apart when I get the new shafts in so I'm not doing it twice or having parts lying around loose for the kittens to lose lol
It's a weird issue
When i got home that day I opened the front diff cover and the axles were fine fully seated. I'm also considering that I snapped the old shafts
Ill find out more this weekend and post the newer info then

You had this exact same problem on the 450 remember? Those axle ends that were wallered out? I think you were calling them adapters.

That is the exact same way the Ryft axles are held in. And I see you are using the stock plastic spindles. Have a look at the spindles and see if that lip behind the inner bearing isn't gone just like it was on the 450 axle ends.

Your shafts are likely just fine, unless you broke one in two. But even then - unless it broke out at the beefiest part of the axle, between the inner and outer bearing. There is no way it broke there unless, well, wait a minute. It's you were talking about, so who knows

But if it broke anywhere between the diff and that inner bearing, it still couldn't pull out. So the only thing it really can be is your spindles are F'd up exactly like those 450 axle ends were, or you put the wrong rear bearing in.

 

[WickedFog]

This has me wondering. I have had a lot of RC vehicles, and I have had bearings seize up and melt a front spindle or rear carrier. But I have never had a failure that caused that lip inside there get worn far enough the bearing pulls right through.

Are you installing the pins in your wheel hexes?

These guys here...

I know it sounds crazy not to, but I bought a used RC once and the guy told me the rear wheels kept coming loose. He had tightened the wheel nuts down on the hexes with no pins behind them, whivh basically pinched the outter and inner bearings together on that lip, which would cause your problem.

 

[CertifiedMike]

Endpoints are set and its all aluminum so it shouldn't be

I figured you would have checked for all that anyways. Sometimes I manage to overlook a solution beause I am looking too hard fir the problem.
I see from the diagrams @WickedFog posted that its gotta be bent, worn or otherwise. Seems pretty unlikely to just pop out.
You'll get it!

 

[WickedFog]

Basically, if part A will pull all the way through Part B with the bearings in, something is wrong.

The universal joint on the axle could disintegrate and the stub axle would still stay in place. You'd just have no power to the wheel.

 

[majin]

I figured you would have checked for all that anyways. Sometimes I manage to overlook a solution beause I am looking too hard fir the problem.
I see from the diagrams @WickedFog posted that its gotta be bent, worn or otherwise. Seems pretty unlikely to just pop out.
You'll get it!

half the time i overlook all that lol, i got lucky? in that my controller forgets the epa each time so i set it before each drive lol.
I'm thinking worn, the axle internals were second hand and my most likely gremlin