Hi Alan, Dave and Martin
Could I check the absolute basic before I go further - have I wired this right?
Please say if anything below is wrong.
Just to show you another test, I've eliminated any possibility that it is something to do with the lever frame (momentary shorting or whatever) or switches on it, by rigging up two unused microswitches to the two unused point motors (one is the catch point motor which is installed under the baseboard, its 8 wires come to an 8way choc block, so far unconnected to anything beyond).
So there is nothing here that was on the previous tests except the diode arrangement and wires coming from it.
Exactly the same thing happens - while only one motor is connected it runs properly, connect up the yellow and grey wires and both run slow in the same pattern as I showed right at the start.
Can I say that for this test whether the turnout lies Normal or Reverse is of no relevance.
[I'll edit this with photos to illustrate the below]
So here are the wires from the diodes. Orange and grey twisted into a pair, yellow loose.
20230312_110221.jpg
Then here is the 6 way choc block, 3 from each switch.
20230312_111506.jpg
20230312_111624.jpg
The blue wires connect to each motor. The grey and yellow from diodes connect in to the left (catch point) terminals. The orange loops round ...
20230312_111632.jpg
to the new motor which has two choc block teminals. (I've wired all turnout motor leads yellow to the associated terminal block). The blue wire connects to the other terminal. Another orange wire links this orange terminal to one terminal on the catch point below the baseboard.
20230312_111732.jpg
So far only the catch point is fully wired and works properly in both directions.
Now to connect the other uninstalled new motor I simply add loops of grey and yellow wires between the appropriate 6 way choc block terminals.
20230312_111926.jpg
PS I thought Martin had established the diodes were working as they should with the test light procedure and other questions/answers at that stage.
Here is the enormous blob of solder
20230312_123515.jpg
You do not have the required permissions to view the files attached to this post.