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I have older Lionel Santa Fe Dash 9. One of the motors through testing runs slow. Engine will not move at all. The 2nd motor works but cant since other motor isnt working properly.Sounds are excellent. I tried on Lionel website to order but couldnt get a number. The nos from motor are RS -385 PH  RN 530304. Shell nos are10 8252-1-005. I do not have a box it has been misplaced. I'm going through all my older non running engines trying to get them working .Thank you. Bob.

Last edited by SDBOB1
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The motor change takes a turn. The picture you show Gunrunner John looks identical to the motors I received. Looking at old motor the pinion is further off the shaft. soooo , the new motor will engage worm gear but the end will not seat in bearing at bottom of truck. I started cking depth dimensions with dial calipers. There is a difference of .160 to seat in the lower bearing. I measured old and compared with new.So I tried to slide pinion off the shaft to take up this distance with my old slot car gear puller nope didnt touch it.  Should I apply heat from propane torch?Any suggestions would be appreciated.  Looks like a 'new' puller is the answer. I figured this is a easy swap earlier today. Now!!?

Finally I got pinion moved. I made a heavy duty  puller. Drill press,grinder,file,  that worked on old motors easily. I tried it on the new motor was tough but got it. I was wondering if a heat gun on pinion with several  cycles would have helped? Now I have a puller that will work on anything for my trains.

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