HO 4-6-0 Motor Recommendation???

With some wear in those open frame motors work just fine.  It has been a while, but there was a company that made can motor replacements for all the "popular" mounts such as the Mantua Presidential Pacific, the Mikado, and most of the Bowser products.  Like you, I haven't really worked on my HO in some time so I don't remember the manufacturers.

However, going back to my original point, my father and my uncle have some wonderful HO classic runners with open frame Pittman motors.

@Bob Delbridge posted:

I haven't run any HO trains in 30 years, after going to O-scale.  This weekend I pulled out one of my old HO engines.  I have no idea who the manufacturer or what the original engine was, but I know I converted it into a 4-6-0 using a brass frame a machinist friend of mine made for me using a drawing I provided him.

Never ran great, I'm guessing due to the open frame motor.

Here's a photo of the open-frame motor mounted in place:

Judging by the motor,rods and red dots on the driver centers, it sure looks like a Model Die Casting/Roundhouse rig: I have a couple of similar vintage locos and, although they are a little noisy, they run and pull very well.

Sorry I can't help with your questions...

Mark in Oregon