RMT BEEP Problem Running

Strictly a guess - could they be wired opposite of each other from the factory?

I think the "wired wrong" is the answer.

Is it possible that one of the shells is on backwards

Good point, checking the tether gender should answer that question.

I agree with TSTARK, the shell fits both ways. Just change the direction of the shell and then you will be good to go. 

Lash them together back to back maybe?

Thanks everyone appreciate the advice.

George

All of my Beep chassis have the on-off switch for direction control in the back – that is, they always start in the direction opposite of the switch. (Does this make any sense?) And, so, yes, I have reversed the shells and rewired my tethers so I don't always have to run them long hood forward. 

Galley Proof I think you have my answer.

The Beep in question starts in reverse in the opposite direction of the on and off switch. Based on what your saying my shell is reversed.   The long hood  which has the "F" marking for forward is currently on the same side as the on and off switch. 

That kind of makes sense now.  With the shell reversed,  the long hood is on the opposite side of the on and off switch and starts up in the forward direction.  This works!!!

My second issue now is the tethers.   On my other good working Beep the male tether is on the end with the on and off switch and the female tether is on the end of the long hood.   In order to lash the engines long hood forward, I will need to reverse the tethers.

Whew, know this sounds confusing but it makes sense now doing it step by step.

Thanks again for putting up with me.

George

    The PRR had ordered four oddball GP9s that only had MU cables on the rear ends. As a result they could only MU in back-to-back pairs. So running back-to-back would not be without precedent.