Need help with sante Fe passenger set

Update. The on off switch on 77a turns off reverse.  It ran strong forward and back.  73a lit up and that was it. No engine sound at all. Rear engines wheels turned too easy 

73A is probably a dummy

I blew up the coupler on front of engine.  Looks like it's missing something.  Since I don't have a pic of original rear coupler on engine, not sure what part I need. 

The cars are K-Line/Marx tooling.

Jon

They're k-line.  Look at the last pic.  This is on the front of both engines.  Looks like it's missing something.  Also, both engines rear couplers are broke and not sure what part number I need to look for

chinatrain99 posted:

I blew up the coupler on front of engine.  Looks like it's missing something.  Since I don't have a pic of original rear coupler on engine, not sure what part I need. 

Anybody got an idea what's going on with this coupler?  It looks to be missing a part.  I think it's a silver chief set

Not sure if this will work but it has worked once for me, replace the couplers with Lionel type couplers. Sometimes I find that the K-Line couplers little arm piece doesn't extend far enough to fully keep working.

Lee

Lee.  Thanks for the reply.  I originally thought the were to hook the a & b units together but they are too short.  I was looking at a Kline part list and I see where there's a coupler "head" that has a screw to tighten it down onto something. I thought that it was this piece that was missing.  

The reason it doesn't look like a coupler is because it isn't a coupler.  You are missing the entire head, that piece with the silver dot, that by the way isn't in the shell correctly, is the part that opens the coupler.  It looks burnt from it shorting out on the center rail.  You will need to replace the entire truck assembly on the engines to fix the couplers.  You take the motors and gears out of the truck and replace the frame.  Brassuer Trains did have the parts.  The Train Doctor

On the dummy you may be able to just get the couplers and not need the entire frame.  It all depends on what they sell.

The second thing you want to do is wire those motors in series because these things run wicked fast.

Gene Anstine