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Old 11-18-2023, 07:45 PM   #4
WhatAmIDoing
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Join Date: Nov 2022
Location: Calgary, AB
Posts: 9
Quote:
Originally Posted by old911doc View Post
First, verify that you have not incorrectly installed the right side ‘banana arm’. If it is not properly positioned on the transmission, it can give improper moment of both the top frame and the clamshell cover (a.k.a. turtleneck). Second, make sure that both transmissions are in the same points in their range of travel when the drive cables are attached to the electric motor. The transmissions have a ‘timing mark’ on their bodies to aid in assembling them in the same points in their travel. If you need to drive one transmission forward or backward to match it to the other side, all you have to do is to detach the driveshaft / drive cable at the motor, and chuck it into your handy-dandy portable electric drill. Turning the cable manually, while possible, is not feasible because of the large number of turns of the cable made necessary by the extreme gear reduction ratio of the transmission.
This is interesting. I didn't pay much attention to the 'banana V arms', but now after checking, it appears that I installed them on the opposite sides. I don't have "before" photos of my car, but the direction of the "V" on the parts diagram as well as any video I find online seems to be opposite to my setup. I suspect this might be the issue.

I did align both transmissions using a drill before installation and they matched the marks perfectly. I now realize this is no longer the case (as I moved the roof a bit), so I'll just re-align them before re-installing the V arms.

What do you mean by "If you need to drive one transmission forward or backward to match it to the other side" - are you referring to having the right transmission "in the right place" (after the left transmission is already connected) to allow connecting the 2 arms to the clamshell and top?


Quote:
Originally Posted by 78F350 View Post
A couple years ago I bought some of the cheapest replacement gears I could find on eBay. I got what I paid for. One was good and the other moved backwards. The gears are supposed to be beveled differently for each side. The ones I received were both identical. Lucky for me I had an extra left side transmission to rebuild.
So, the two gears I bought are not identical, their direction of gears is 'mirrored' if you put them next to each other. Sounds like the issue you experienced like isn't what I am dealing with, but can you confirm?

I was also pretty careful to compare them with the ones I took out of the car, and it seems each of them was identical to each of the original gears. The gear on the right transmission wasn't busted, just cracked, so I may put it back in to test but opening the transmission again is last on my list of things to try, because I do believe I did a decent job there.


Thank you so much for your replies! I feel like you certainly put me on the right track to finding and fixing the issue!
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