Been working on clearing my RIP track and got around to my PK 2000 SD 7. It ate it's decoder shortly after I installed a LED for it's headlight.
Tested the motor in the shell and free wheeling at a very slow speed it was pulling 1.45 amps, not good for a DCC engine. With the weights on the chassis all I could see was part of the magnets case. Pulled the weights and was stunned by what I saw!
Motor looks like a Athearn Blue Box / RTR motor but the motor is just a tad narrower and the shafts for the flywheels are about half the sizes of the Athearn's!
Any ideas where to get a replacement motor? How old is this thing? It came in a Gary Blueish box. Motor looks like the one's that came in my BL 2's that I know are 20+ years old.
Cuda Ken
I hate Rust
I had one of the motors in an SD9 (pretty much the same thing) go bad.
You may be able to get the flywheels off with a puller and use a different P2k motor. I tried with pliers and messed up a GP30 motor.
I managed to get a motor from walthers, but that was a few years ago. They are probably out by now. Proto used the same motor in pretty much everything until recently. I think the newer SD7/9s have can motors.
Vincent
Wants: 1. high-quality, sound equipped, SD40-2s, C636s, C30-7s, and F-units in BN. As for ones that don't cost an arm and a leg, that's out of the question....
2. An end to the limited-production and other crap that makes models harder to get and more expensive.
Thanks Vince, so they all PK motors uses the same sizes flywheel as far as you know?
Ken
Where did that come from? Just looked in a box of old motors that Model Builder (Jay) sent me a few years ago. On top of the pile I saw a motor marked PK2? Yep, it is the same motor that went bad in my SD 7! With it looking like a Athearn Motor I never noticed it was marked PK 2!
Just tested it, free wheeling it pulled .09 amps and stalled at .89 amps. Good to go!
Thank You Jay! Now to get the SD 7 working again.
You're welcome, Ken! Yeah, the early P2K motors were Athearn clones, you could actually substitue one for the other, if you can exchange the flywheels (usually takes a gear puller).
Jay
C-415 Build: https://imageshack.com/a/tShC/1
Other builds: https://imageshack.com/my/albums
Motor shaft sizes is smaller on the PK, that was what was worrying me. But thanks to you it will be up and running shortly. Famous last words.