NEED A MOTOR FOR 6-11149

Alex, you know more mechancially than most on this forum.  I'm guessing that the motor itself isn't anything special.  Maybe Frank Timko or someone else who reads this post can transfer the all-important worm gear and flywheel onto a new motor for you?

This is one of the reasons I'm not a fan of having the worm gear pressed directly onto the motor shaft :-(  Really hope you're able to get it running again.

The gear is toast. A new one would have to be cut. Its a very small diameter gear. The root diameter is close to the OD of the motor shaft unlike most all other worms Lionel uses.

Pete

The Mabuchi RS-385PH motor family is fairly common, but the shaft arrangement and gear for Lionel here is not

https://product.mabuchi-motor.com/detail.html?id=101

Alex, 

I encountered the same problem 2 years ago and Frank Timko was able to supply a replacement with the correct gear.

Eric

Eric is right, Frank has the tools and the expertise to pull the worm and put it on a replacement motor, that's the way to go. 

Hi guys 

The worm is no good , it’s chipped and slightly bent. 

Alex, had the same motor with the same problem; as John said, went to Timko and he set me up; PITA but best option under the circumstances; Falcon70

@Falcon70 posted:

Alex, had the same motor with the same problem; as John said, went to Timko and he set me up; PITA but best option under the circumstances; Falcon70

 I’ll contact Timko and see if he can help me 

Thanks , Alex 

I checked my supply of about 30 different Lionel motors, and the Lionmaster Challenger motor I have is way thicker shaft.  I was surprised - thought they'd be the same.  Seems the other Lionmaster Big Boy's used a different one than this one as well.  Ouch - I have the same engine - hope it doesn't develop the issue.  I have a 11 year old that thinks he isn't pull 30+ cars its boring.

Let us know how it turns out.

Jim

@Alex M I'm curious... do you know what happened, how the worm gear got chipped and bent?  A failure like this can turn an expensive loco into a shelf queen.  I don't want to repeat this scenario with my own trains!

What worries me is that Frank Timko is like most of us, aging out, and as far as I know, no one else is providing the motors or items Frank does, we use a ton of his Williams replacement trucks and motors.

@Ted S posted:

@Alex M I'm curious... do you know what happened, how the worm gear got chipped and bent?  A failure like this can turn an expensive loco into a shelf queen.  I don't want to repeat this scenario with my own trains!

Hi Ted, the worm appears to be able to be pulled off the shaft quite easily. This is not the case, i had a couple of people try and the worm was damaged. 

Alex

The overall diameter of the worm is so small that diameter of the motor shaft diameter as actually larger than the root diameter of the gear. The mounting hole in the gear therefore is blind and does not go through the length of the gear as it does on most all other worms usually found on these motors. There is nothing to push against when trying to remove the gear. Couple that with the fact that it has an extreme interference fit, maybe as much as .003-.004" undersize its near impossible to simply pull off without totally destroying the motor.

Even Lionel realized this was a poor design. Their second generation Lionmaster Big Boy uses a different larger gear. Unfortunately its doesn't fit the 1st generation engine.

I think the only fix here will be a new gear will have to be machined and installed on a new motor.

Pete

@Norton posted:

The overall diameter of the worm is so small that diameter of the motor shaft diameter as actually larger than the root diameter of the gear. The mounting hole in the gear therefore is blind and does not go through the length of the gear as it does on most all other worms usually found on these motors. There is nothing to push against when trying to remove the gear. Couple that with the fact that it has an extreme interference fit, maybe as much as .003-.004" undersize its near impossible to simply pull off without totally destroying the motor.

Even Lionel realized this was a poor design. Their second generation Lionmaster Big Boy uses a different larger gear. Unfortunately its doesn't fit the 1st generation engine.

I think the only fix here will be a new gear will have to be machined and installed on a new motor.

Pete

Hit the nail on the head ! Thanks Pete 

Alex

Hi Alex,

Would this work ? It is PT# 6008005147 . Measurement are in decimal not metric.

@Ron_S posted:

What worries me is that Frank Timko is like most of us, aging out, and as far as I know, no one else is providing the motors or items Frank does

Maybe he would be kind enough to run a "clinic" on removing worm gears, remotoring, etc., at an upcoming York (or a TCA meet local to where he lives.)  I know a lot of folks captured John Armstrong's wisdom on video.  With today's technology there's no reason for knowledge to be lost when someone retires or closes up shop.

His expertise is valuable, but so are the presses and pullers and tools he uses. 

@Lionel Parts posted:

Hi Alex,

Would this work ? It is PT# 6008005147 . Measurement are in decimal not metric.

Looks like it would work , would have to install it on a new motor. 

Thanks, Alex

Some Loctite retaining compound and a press will stick that on the motor.