Motor of the Week - Week 8 - Please help identify!

Looks like a 675M-1 motor from the late 40's.

Don

Forgot to add used in 675 and 2025 locomotives.

Don

CArolina Shagger posted:

Forgot to add used in 675 and 2025 locomotives.

Don

Don, you were quick on the draw and spot on!  Truly an awesome performance that seems to have scared off other commentators. So it is my pleasure and honor to bestow upon you this Certificate:

I love these threads Pete! 

You deserve an award as well 

Adriatic posted:

I love these threads Pete! 

You deserve an award as well 

Flattery will get you everywhere!

I'm running out of derelict motors. Most of those still in the box (my bone yard) are old Marx motors and pieces of Lionel motors. This, however, can be a good thing. This afternoon I broke an axle prying a drive wheel off the corroded 675M-1. I am hoping to scavenge a suitable replacement axle from one of the Lionel derelicts. Before I do that there is a whole lot of rust and crud that has to be removed, and I haven't even accessed the field yet. Heaven knows what might be in there!

Pete, instead of prying a wheel off, try this trick that I got from someone with lots of repair experience. While sitting down straddle the motor across the top of your legs. Use a drift punch that is smaller in diameter than the axle and a medium sized ball peen hammer and give the end of the axle a couple of good whacks (safety tip - use eye protection!). It's worked for me.

A Marx wheel won't like the shock of sharp blow one bit (brittle), even wheel pullers can kill some, breaking flanges. I pry on those but not on hub or flange anymore.  Lionel steam may chip as well (but not as bad or as often, especially with a puller). Lionel diesels wheels are a different alloy, they seem to laugh at a heavy shock.  It all boils down to luck of a train wheel's metalurgy.

Marx; still runs and stays railed.

rickoshay posted:

Pete, instead of prying a wheel off, try this trick that I got from someone with lots of repair experience. While sitting down straddle the motor across the top of your legs. Use a drift punch that is smaller in diameter than the axle and a medium sized ball peen hammer and give the end of the axle a couple of good whacks (safety tip - use eye protection!). It's worked for me.

Good advice, Rich! Thanks! I did use a nail punch without much effect. I suspect that over decades moisture seeped into the hub through the ribbed ends of the axle  and made a corrosive bond. The axle failed before the wheel would budge.

Now the issue becomes which axles will serve as replacements. I see from the Service Manual that the Geared Center Wheel Assembly (which includes the axle) is part #226E-64. The axle alone is part #752M-49. Before I start pulling wheels on other motors it would be good to know how interchangeable the axles are.

Good advice, Rich! Thanks! I did use a nail punch without much effect. I suspect that over decades moisture seeped into the hub through the ribbed ends of the axle  and made a corrosive bond. The axle failed before the wheel would budge.

Suggestion:
Stop and apply a high quality, very light rust breaker. Give it time to work.
I'd go with PB Blaster or a fresh bottle of liquid wrench.

C W Burfle posted:

Good advice, Rich! Thanks! I did use a nail punch without much effect. I suspect that over decades moisture seeped into the hub through the ribbed ends of the axle  and made a corrosive bond. The axle failed before the wheel would budge.

Suggestion:
Stop and apply a high quality, very light rust breaker. Give it time to work.
I'd go with PB Blaster or a fresh bottle of liquid wrench.

Very good advice, C.W.! The barn door, however, is already open and the horse gone. The damage is done. I suppose this proves the old German saying, "Vee gehts too zoon ald und too late schmahrt."

The barn door, however, is already open and the horse gone.

I guess you will never have to deal with a stuck wheel again.

Also, there are other people reading these threads. Maybe the suggestion will help someone else.

Never again! I will have my PB Blaster.