Need help with binding gears on a Lionel 28857.

I'd go for it,  Epoxy or CA. It's not much good the way it is. Epoxy ,even the 5 min stuff  actually takes over night to really set up.  I'm guessing the center gear drives the outside gears. If it's spinning on the shaft it's not much good. I f you glue it you won't need the broken washers.  Be careful with CA, you don't want to get any on the bearing. just enough to hold the gear on..   good luck  My 2 cents.

Thanks Gregg! CA? I'm having a brain cramp!

Crazy glue  

I would get the washers myself and buy a few extra for your toolbox.  Those washers actually bind into the shaft as you probably know by now.  Easy to put on and they dig into the shaft on the way off which is the purpose.  Epoxy or glue would be an absolute last resort for me.  I have never been able to get a metal surface clean enough to hold the glue without roughing it up.  Any oil or grease will usually undermine the epoxy bond on the metal shaft.  $0.02

Steve - I assume the washers a standard Lionel part?

I'm not sure what you want to glue or epoxy. That gear should turn freely on the shaft. the clip just keeps the cluster gear from working loose and fall off the shaft.

 Something doesn't look right in your picture.

Yikes. I thought that the main gear that drives the other ones?  I hope you didn't glue it in solid just yet.     On some engines it is the gear that drives the others, on others it is not. What  gear does the worm gear drive?

If I remember correctly, the 6-28857 Alaska GP-7 was one of the locomotives delivered with a plastic pinion gear on the motor shaft. It didn't take long for the gear to split on the shaft. At the time, Lionel provided a free motor upgrade that used a metal gear, but I'm guessing they no longer provide the free upgrades.

 

Check the gear on each motor to see if it's metal or plastic. If plastic, this is almost certainly the problem with your locomotive. The complete motor assemblies with the metal gear are available from Lionel as 620-8857-100 at $8 each.

 

Chances are the gears in your motor trucks are just fine, you'll just need to reassemble them. But note that the 600-8960-052 (8960-52) palnut shown above is not what these normally looked like, and they may or may not work in your truck.

 

I hope this helps.

TRW

 

 

 

 

 

 

https://www.lionelsupport.com/...3c4636167f0725f2c4b7

 

https://ogrforum.ogaugerr.com/t...8857-gp7-info-needed

 

Sadly Boxcar Bill is no longer with us, but HTH.

 

Pete

Thanks for the great info! I definitely know what's next!

Thanks Again!!

Why not? If it is defective design/manufacturing would expect them to stand behind it.

Everyone knows most of the new stuff is barely run by the amount that is for sale and still new in the box years after production.

Here are better pictures of the associated parts, from Lionel's site.

 

Yep, that part I posted earlier - looks different.  Looks more like this 1, but I can't find my paperwork from my last parts order.