CMC axle spinning, is this common?

Sounds like some JB weld on the axles or some home brew "knurling" using a pair of side cuts, then reinstall the wheels is needed to "lock" them to the axle.   

artfull dodger posted:

Sounds like some JB weld on the axles or some home brew "knurling" using a pair of side cuts, then reinstall the wheels is needed to "lock" them to the axle.   

 

And that's the one idea, JB weld, a little bit of good luck and hopefully we're up and running. I was able to press two wheels on yesterday and thought I had it. I even quartered it with no issues. However as soon as I attached cars to it one if the wheels started slipping on the axle again. The other is rock solid, great, but we'll still need either new wheels, new axles or both to make everything factory new.

Have not run into that problem yet with any of mine. Been lucky so far.

Steve

artfull dodger posted:

Sounds like some JB weld on the axles or some home brew "knurling" using a pair of side cuts, then reinstall the wheels is needed to "lock" them to the axle.   

 

So this didn't work too well. The JB weld didn't hold, so I'm thinking about brazing the wheel to the axle. Does that sound completely crazy?

Try knurling first.

Rob English posted:

Try knurling first.

Thanks Rob, can you recommend a home brew knurling process? I tried to "groove" the wheels and axle but didn't have much luck.

Use side cutters and squeeze little indents at an angle on 3 places equidistant along the axle. Dull cutters will work fine.  You dont want to bend the axle or cut through...obviously... just to deform the metal a bit.  Grooving radially does not add grip...it reduces the parting surface area, and so has a slight opposite effect.

So just to follow up on this. For the #12 I got 4 new wheels from Harry Hennings, pressed them on and it's running real nice around the track. My eccentric crank rod bolts are make shift but they seem to be doing the job.

For the 89, I tried to knurl the axles and it worked on 1 side but not too well on the other. I may just buy 6 new wheels from Harry but I'm still looking into home brew ideas.

I received two CMC engines the past couple of weeks and both have slightly loose drivers. One has slight zinc pest which would explain the problem, but they are still usable. I will try and score the axles when I tear it down to add a rectifier.

Steve

Steve "Papa" Eastman posted:

I received two CMC engines the past couple of weeks and both have slightly loose drivers. One has slight zinc pest which would explain the problem, but they are still usable. I will try and score the axles when I tear it down to add a rectifier.

Steve

 

I have a third one coming in this week. I won the auction the other night of the limited edition chrome set that was never assembled. I'm hoping those drivers are still in good shape.