So I have an original protosounds engine that I am testing on a small test track,. I installed a brand new 9v and when turning it on I get only 2 bells which is telling me all is OK. However when I cycle to nuetral the engine only budges and then is vibrating like the motor wants to run but for some reason cant. Now my test power is an old postwar RW, Has anyone seen this and what are you thoughts on what the cause can be?
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i would suggest you try someone who has a z4000 transformer to test it as the mth transformer was designed to work with that ps1 engine!
a ZW might work but they do not have fast breakers and can burn yp or damage your board if you get a short!
So I figured out the issue, it wasnt the protosound unit or anything electrical. The smoke unit piston was jamming up and sticking. So I started working it looser and oiled it some and got it moving. I had the shell off and the engine was on the rollers. I cycled direction one time and the **** output shaft coming off the motor seams to have loosened up and come loose so now the motor can spin and not the drive shaft. What do I do now? This looks to be press fit
I thought all MTH engines always had fan driven smoke units.
this is an older steam engine with cam driven smoke unit, originally it only had a qsi board but this is one of those that was "Upgradeable"
@rdg_fan posted:I thought all MTH engines always had fan driven smoke units.
Not true, early ones had Seuthe smoke units and mechanical smoke units. I have a Premier Y6B in for upgrade that has the Seuthe smoke unit. Obviously, it won't have it when it leaves. I also have in my own stable a Premier Challenger that started life with the Seuthe smoke unit, it now sports a fan driven smoker.
I've only seen one with the mechanical smoke unit, but that's enough to know they do exist.
First N&W J RK was piston driven. G
I don't remember the one I stumbled across with the mechanical smoke unit, but I know some early ones had them. I've see a few of the early steamers with the Seuthe smoke.
Learn something new every day.
does anyone know what the fix for the output shaft being loose on the motor shaft would be? Im guessing a new one would have to be pressed on or maybe MTH sells the motor with output shaft already pressed . Any thoughts on a way to remedy it, maybe adhesive of some kind? I fear by me oiling some may have loosened the press. It will still run but any kind of force lets it break free and the motor will spin without moving the wheels.
Without pictures and exact model numbers, it's pretty hard to make recommendations. Knowing exactly where in the drive linkage the slippage occurs will be key as well. We really have to have the details before we could hope to offer a solution. If it's really a pressed on shaft that is slipping, something like Loctite 680 Retaining Compound is what I'd use to fix it. However, that's just a guess based on next to no real information about the situation.
I pulled this off the net as the loco has been closed up for now but this is what the part looks like but has a hole at the end which the motors shaft is pressed into. This spins a worm gear that drives the wheels. The shaft is slipping where it is pressed into the cup so your suggestion of loctite may be a good solution. The loco in question is MT-1101
That one doesn't help much as it's not really the part in question. There's frequently a pin through the shaft to secure the drive shaft joint. If not, then the retaining compound is likely the next step.
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