I have an old Premier SD-9 locomotive that is in need of some repair. I had it on the tracks, and the motor mount screw on the rear truck fell out. I attempted to screw it back in, but it fell out again. Best I can tell, I have the motor and the block lined up, its like the threading on the motor or the screw is stripped out.
Anyone run into this before? Any ideas on what I need to do to fix it?
Thanks in advance
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I would check to make sure the screw didn't shear off. If that's not the case, a little loctite on the end of the thread and a wait of a couple of hours and you should be good to go.
Sorry I'm really not mechanical - when you say "shear off", do you mean break off in the motor mount?
You have to pull the shell off so you can hold the motor down into the truck. The motor mount needs to be lined up with the hole or the screw won't engage.
Pete
nkp4me posted:Sorry I'm really not mechanical - when you say "shear off", do you mean break off in the motor mount?
I didn't write it, but think you've got it right.
The possibilities are #1 totally stripped treads (tap new threads & smile) #2 a shear leaving most ACTIVE threads left in the hole (poke, swirl to spin, swear, drill, swear, drill more, tap, smile), or #3 misalignment to the threads i.e., a "miss" of left, right, fore, aft, or depth.(say oops and smile big)
Thanks guys! I got it fixed. I checked the screw, and the mount, and nothing appeared broken or sheared off. I was able to remove the shell and apply pressure on the motor and get the screw to tighten in as Norton suggested. Appreciate the help!
"A pleasure Sir" 
Train picture donations ARE appreciated on occasion 
I think this one's on us though 
With the shell off, rotate the flywheel so that the worm drops into the gearbox in the truck. Once it drops, then hold the motor in place and roll the loco on its side to put the screw back in.
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