Despite a reasonable packing effort - this took a nose hit - no cosmetic damage, but the loco just makes a "whrrrrrrrrrrrr" sound when powered up.
Like a motor spinning free - not attached to anything.
Speculation?
Sheared drive gear?
What am I looking at here?
I'm a little daunted by doing any work on this one myself...MTH dealer not far though.
Video added
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I would say a noisy smoke unit fan motor. Try turning smoke off and see if the noise is still present.
Sparky74 posted:I would say a noisy smoke unit fan motor. Try turning smoke off and see if the noise is still present.
Ah - ha! - Thank you that was it!
And - testimony to my dumbness - this seems to require that the tender be attached - won't run without it.
Ok - lets see what happens now.
And - THANK YOU!
If you are ok with opening up the locomotive and removing the cover plate on the smoke unit you can remove the fan blade and put a tiny, single drop of oil on the motor shaft. This usually does the trick. If not the motor will have to be replaced. Also make sure not to overfill the smoke unit, a lot of times this gets onto that top motor bearing and causes the noise. I know the link is for a Lionel but both theirs and MTH smoke units are pretty much the same for tis procedure.
If you are up to doing the repair yourself https://www.youtube.com/watch?v=4ie1ByI3Z4Y
Some have reported good results with noisy fan motors using http://megasteam.com/page20.html
hi I have the RailKing Challenger locomotive and if you determine the motor is bad you can even turn off the smoke with your dcs remote and if the noise stops why not just order a new motor from mth or your local mth shop. They are only $6.00 plus shipping and the problems goes away! just call mth and ask for midge in parts she's great!
Alan
repair technician posted:hi I have the RailKing Challenger locomotive and if you determine the motor is bad you can even turn off the smoke with your dcs remote and if the noise stops why not just order a new motor from mth or your local mth shop. They are only $6.00 plus shipping and the problems goes away! just call mth and ask for midge in parts she's great!
Alan
I'm pretty sure this is the whistle only version...no Proto.
Im going to check out the smoke eventually. For now Im just glad it made it and runs.
This is how the box looked - and why I was kind of alarmed - the pilot acted like a spear!
Fortunately no cosmetic damage - what luck!
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