Adding a quick point regarding fuse size. We had a bit of a discussion on this a while back. OK to try a 5 amp fuse for your motor supply wires, but you may find it is a bit light in practice.
Granted the Plus 2 motors are different (more below), but I am guessing you may have a similar issue as I had. I ended up using 15 amp fuses for each motor (supplied separately in my non-stock setup). The motor would run fine with a 5 or 7.5 amp fuse, but they would blow when the motor reaches stall at the full up or full down position. One had to be very quick at releasing the switch!
Problem solved with 15 amp fuses. For sure start with a smaller fuse size, but may have to up-size if you have a similar issue.
Key point is to make both the supply wires as large as practical to reduce any voltage drop to the motor. I used this size thin wall cable from Vehicle Wiring Products, which is available in many colour choices:
Ref 25. 28/0.30mm, 2mm2, 25amp.
?0.50 per metre. ?37.90 per 100 metre reel.
Plain colours also available in 30 metre reels @?12.79
Typical applications. Headlamps, fog & driving lamps,
rear screen heater,
windscreen wiper motor.
As noted, the Elan is pretty unique in the use of re-purposed windshield wiper motors. There was a thread a while ago where a lister found IIRC readily available rebuilt Mustang wiper motors could be used, but it may have required using your existing output gear deal (sorry not familiar with Elans, see the thread). Anyway, here is the thread in case you have continuing issues with the motors. I used rebuilt Cardone motors for my Plus 2, and the quality is excellent, readily available in NA at your local Auto Parts store for reasonable cost, and they take a core on your old motor. Just get the new motor in your hands before giving them the core so you know what to retain.
body-chassis-frame-f36/power-window-lift-motors-cross-over-parts-t25540.htmlRegarding the Excel window motors John mentioned in this thread...
electrical-instruments-f38/window-motors-t27878.htmlI am completely guessing here, but I expect they are different from the Elan motors. Don't want to hijack the Elan wiring thread, but suffice to say the 'common' way to do window motors uses two power wires (one for up and one for down) and a ground, which is used to operate the motor. This is how the Plus 2 motors work, which are a very commonly used GM part (Chev, Buick, Olds, etc.). This was long before the GM purchase of Lotus; they just raided the Delco parts bin in this case.
Humorous side note; they installed them backward to GM (left motor on the right side of the car & visa versa) just to make installation a PITA.
Plus one on moving your wires so a diode equipped relay will work. From your photo your relays don't have a diode, but better to wire to the standard.
HTH & doesn't confuse things. I think you have got it now.