LGB standard motor

nicebutdim

nicebutdim

Registered
Country flag
Hi, would anyone have any old LGB standard (or even long shaft) motors laying about that they could sell to me? It must have the worm gears attached and doesn't matter if working or not. I stripped one of my motors yesterday to clean out the commutator and struggled to get the worm back on. I heated it a little at a time but it got stuck so applied a little more heat, then the bloody worm melted :thumbdown: :angry: The worms are not available separately so I'll ask here before having to buy a brand new motor.
Many thanks,
Tim
 
Definitely the worm that I destroyed, the brass one that is shown on funandtrains' link. I was using my plumbing blow lamp with a small nozzle flame to heat it (whilst not on the motor). It really didn't take too long at all to get it to the temperature for it to soften, so be careful those who do try.
Anyway, I have been offered a couple of dead motors so pending the deal the motors (or worms) are no longer wanted.
Many thanks,
Tim
 
ROSS said:
Blow lamp?:nail:
Click to expand...
I know, looking back at it now maybe the proverbial hammer was a bit large but I had nothing else to hand. I had done it a couple of times before using a much larger nozzle that give a softer flame and it went fine, this time I found the smaller nozzle so changed it over. The flame did sound a little like a small rocket engine :laugh:
 
I think it must of been a brazing torch to melt brass that quick!

A pity as the brass worms can only be got off old motors but there maybe someone with one.
 
Hopefully my needs have been fulfilled with a couple of old motors. Fingers crossed.
 
Good luck.

I'm intrigued as to why you got the worm so hot and I share Steve's concern that so much heat may have caused other damage.

I've noticed that the hole in the worm seems to have a tapered lead on one end. As you had a problem with reassembly I wondered if you had put it on the right way round?

For the record Champex Linden sell replacement worms, their ref. CL 21003.
http://champex-linden.de/cl_pr_lgb_ersatzteile_2.htm < Link To http://champex-linden.de/..r_lgb_ersatzteile_2.htm
 
The worm wasn't attached to the motor when I overcooked it, it actually came off quite easily with little heat applied. I marked the worm with a tiny scratch for it's bigger end so I knew which way round it went, even more frustrating that it just kept jamming half way on. I was very careful to make sure that the motor itself wasn't heated and that little heat was transferred down the shaft. To be honest I think it was a case that I told myself it was going to be a 5 min job. A 5 min job always turns into a right pig of a job and the simplest task is made difficult in one way or another :laugh:
 
nicebutdim said:
The worm wasn't attached to the motor when I overcooked it, it actually came off quite easily with little heat applied.
Click to expand...
I presume then, that you attempted to reassemble a hot worm onto a cold shaft. I've never tried that I just put the worm on the shaft as far as it'll go and heat both together. I wonder if the cold shaft cooled the worm enough to cause it to jam?
 
Put the motor and shaft in the freezer for a bit then just warm up the gear and slide on (with a hammer!)
 
Thanks guys, some good ideas there. I have to admit I've wanted to get a small gear puller set for a while so this could be a good excuse to do so. Should be easy getting away with a small motor in the freezer, reminds me of the talking to my dad gave me when he found a flywheel in the freezer and a starter ring gear in the oven :laugh:
 
A bath of hot oil is also useful for heating up items that work on an interference fit.
 
You must log in or register to reply here.
Back
Top Bottom