Tach Cable Installation 1969 Corvette
Thread Starter
Intermediate
Joined: Aug 2013
Posts: 27
Likes: 0
Tach Cable Installation 1969 Corvette
Have just put in a different distributor and new tach cable in my 1969 350 HP corvette and the tach gear is driving the tach cable the wrong direction. I installed a new 90 degree elbow so I would not have to bend the cable so much. Any ideas or suggestions. Cowboylar37
Drifting
Joined: Nov 2002
Posts: 1,692
Likes: 209
From: Loveland, CO
I think Lars has a paper on how to clock the distributor and take the severe angle out of the cable. Cable will not last long if clocked at too much and you will soon be replacing it again. On a '69, getting to the rear of the tach is no fun with the limited dash clearance. Which you may already know.
Ralph.
Ralph.
Team Owner
Joined: Sep 2006
Posts: 31,335
Likes: 4,449
From: Westminster Maryland
Hi c,
Is the distributor set so the advance can is forward of the ignition shielding box bracket? It should be set so the advance can is to the rear of ignition shielding bracket.
In that position the tach cable has a gentle curve from the distributor connection to the firewall grommet it passes through.
Might you be able to re-set the distributor?
Good Luck!
Regards,
Alan
Is the distributor set so the advance can is forward of the ignition shielding box bracket? It should be set so the advance can is to the rear of ignition shielding bracket.
In that position the tach cable has a gentle curve from the distributor connection to the firewall grommet it passes through.
Might you be able to re-set the distributor?
Good Luck!
Regards,
Alan
Pro
Joined: Jan 2010
Posts: 518
Likes: 12
From: Panhandle
TAC Cable
I also bought one of those elbows.....but followed the AIM (Assembly Manual) and didn't need it.
Wasn't happy with previous owner's ignition wire routing and went back to OEM wire routing. What a drill it was buying and installing all of the heat shields and ignition shielding parts. Alan71 helped me with the boomerang and oil pan clips! Had to pull the distributor and reset it to the AIM. The neat thing was after installing everything by the AIM, I didn't need a 90 degree elbow and the TAC Cable lined up right.
Wasn't happy with previous owner's ignition wire routing and went back to OEM wire routing. What a drill it was buying and installing all of the heat shields and ignition shielding parts. Alan71 helped me with the boomerang and oil pan clips! Had to pull the distributor and reset it to the AIM. The neat thing was after installing everything by the AIM, I didn't need a 90 degree elbow and the TAC Cable lined up right.
Last edited by TeaEye; Dec 26, 2017 at 04:50 PM.
Race Director
Joined: Apr 2011
Posts: 11,183
Likes: 3,336
From: North of Toronto - Ontario
Vac-can behind the bracket fixes the cable issue
Paul74 had this image, apparently it was a service bulletin (?) at one point
M
Last edited by Mooser; Nov 1, 2020 at 09:04 AM.
Safety Car
Joined: Apr 2006
Posts: 4,057
Likes: 421
From: BC
Hi c,
Is the distributor set so the advance can is forward of the ignition shielding box bracket? It should be set so the advance can is to the rear of ignition shielding bracket.
In that position the tach cable has a gentle curve from the distributor connection to the firewall grommet it passes through.
Might you be able to re-set the distributor?
Good Luck!
Regards,
Alan
Is the distributor set so the advance can is forward of the ignition shielding box bracket? It should be set so the advance can is to the rear of ignition shielding bracket.
In that position the tach cable has a gentle curve from the distributor connection to the firewall grommet it passes through.
Might you be able to re-set the distributor?
Good Luck!
Regards,
Alan
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