Electric VW: Transmission Killer

Electric Bug

In my last post on the bug, I had mentioned that I replaced my brushes, hoping it would fix some noise I was getting in the transmission/motor area. It didn’t help, and I then replaced two CV joints, as one was worn pretty bad. That also didn’t help.

So, I bit the bullet and removed the transmission/motor. This isn’t fun; I have to remove some of my cells in the rear seat area as they cover the hatch that lets me undo the transmission from the shifter. It isn’t too bad; I simply undo the red hold down strap, disconnect the BMS and cell wires, and then pull out the center set of cells.

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The hardest part about getting the rest of the stuff out is to remember how to do it. I had made a motor mount thing that I used to slip under the motor and get it out, but I forgot that it doesn’t work anymore (for some reason), and I simply use a piece of plywood under a jack to lower the motor/tranny combo. I have to first remove the “ears” on the transmission to get it to do this; it is a pain. Once I remembered all the tricks, it slid right out (this took a while).

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Now, here’s what failed. The bearing that holds this shaft in place is blown (not the throw out bearing, but the bearing on the case itself):

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The shaft wiggles like mad, and the bearing has clear damage that I can see, and it is obviously leaking when it shouldn’t leak from there.

So, time for a new one. Last tranny was from Bugformance in San Jose, CA. I’m going to try this place next: http://www.mofoco.com/category/Rebuilt_VW_Transmissions/c112 which means waiting a few weeks…

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ed

Check the shaft alignment from the motor to the transmission. It could be bell housing alignment, or motor mounting alignment that is off and is putting a lot of lateral force on that shaft and therefor the bearing.

stan

Hey, bummer – – so did you drop the transaxle? no sure how it works – i have the vw transaxle in my trike

Good luck – –

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