67 tach cable

[Tim Sargent]

I experienced an early tach failure on a 1967 BB air car resotration. I am not sure why the tach failed, but the tach head itself has been damaged at the cable drive input. The existing cable is not broken.
I purchased a new repo cable and the casing measures ~27.0" (measured between the ferrells) with the drive cable at ~28.0" . I was then told that this repo is for the 1969 up to 197xx and is too long and might damage the tach mechanism if "forced" in. I then purchased a NOS Delco cable with a casing of ~ 24.75" and a drive cable of ~25.5"; this cable has a white plastic piece on the tach end of the cable. Then when I pulled the existing cable out I find the casing measures only ~23.0" and the cable ~24.25".
Can anyone tell me the correct length of the tach drive cable for the 1967? or which length is best to insure no undue pressure on the tach mechanism. Also is it safer to install the tach end first and the distributor end second or vise versa?
Thank you
Tim

[Randy S.]

Re: 67 tach cable

Tim,

When I did my 66 I sent the 27" repo cable back and reused my original. IIRC it was about 25 1/2", the 27 cable kinked under the dash. I was in the middle of a cluster restoration and thought I would replace it "while I was in there" philosophy.
More important than cable/housing length is the length of the csble that extends past the metal flanged fitting at the tach end. Be sure to measure your original and make sure the new cable doesn't extend longer or it may possibly bottom out in the tach head and do damage (again??)

Randy

[Tim Sargent]

Re: 67 tach cable

Ok thanks Randy I will check the length at the tach side

[Tim E.]

Re: 67 tach cable

Tim - My '66 327/300 uses a 24" cable like yours. I bought one of Paragon's 27" cables and managed to get it installed but the bends were much too tight and the needle fluttered when done so I got frustrated and put my original back in.

Then I found a 24" cable on eBay from Corvette Pacifica...part number E7789, $18 + shipping. I received it in a couple days and installed it. Works perfectly. That's the only 24" cable I could ever find.

Corvette Pacifica - 800-488-7671.

Tim

[Gary B.]

Corvette Pacifica cable

Tim,

How does the Corvette Pacifica cable judge in terms of cosmetics?

Gary

[Tim E.]

Re: Corvette Pacifica cable

Gary - I took photos comparing the Corvette Pacifica cable ends with those of the original but don't have them with me today. I'll post them tomorrow so you can see.

The black rubber cover and the knurled retainers on both ends were comparable. One crimped end was comparable but there were differences in length and crimp style on the other but I can't remember if that was the distributor end or the instrument end. Both ends are visible, so there would be a configuration deduction for that discrepancy.

Tim