Tach cable hole in the firewall

[David H.]

Can anyone show me a picture of where the tach cable hole should go in the firewall with some reference measurement to something so I know where to put it?
My car had been changed to a FI car at some point and the hole was elongated for that. I had the hole glassed over so I could recut the correct one for the car. I want to get it as close as I can to the correct spot when I recut it.
Any help?

ThanksInto the paint booth 2-8-2012 003.jpg Oh, did I mention it is in the paint booth?!

[John F.]

Re: Tach cable hole in the firewall

David, Looking straight at your picture, the hole would be on the flat surface below the big hole for the wiper motor. From the inside of the hood opening, it is about dead center. Not sure what size the hole is due to the bellows in the way. It should be big enough to allow some play each way to adjust the distributor (as you turn the distributor). The bottom of my bellows is about even with the lower ridge. Call me if any questions. (956)412-8761.
John F

[David H.]

Re: Tach cable hole in the firewall

Hole for the tach cable.jpgWow, thanks John. That helps a lot. Dead center on the flat surface (verticle) facing the front of the car below the hole for the wiper motor. Got it! (see pic)
I have the new boot and retainer and looks to be about a 2 1/4" hole.
Thanks again.

[John F.]

Re: Tach cable hole in the firewall

Check the AIM Section 12, Sheet 5.00

[David H.]

Re: Tach cable hole in the firewall

Thank you John, did not see that page. Very helpful.