I just installed a new tachometer in my 67 Camaro. My car did not come with a tach and I didn't want to change anything in my dash
etc. so I mounted it to my steering column. I wanted something that looked period correct and that I could remove easily once I begin the full resto.
I found that this auto meter gauge has similar styling to the knee knocker tach originally installed in the '67 Chevelle. The green light provided matches the original green cluster lights perfectly at night.
67 Chevelle knee knocker tach:
This was very simple. This gauge comes as a pedestal mount and has a cup and mounting ring. I mounted it to the column using a standard hose clamp. When you are sitting in the drivers seat it sits just below the field of view for the gas gauge so that you can see both the speedometer and gas gauge directly over the center of the tach. This would not be the case if you mounted it in the center. (The picture is at and odd angle but it does line up).
Again, this was simple and there are 4 wires. I ran the wires through the grommet used to hold the firewall insulation in place as it was right next to the ground strap for the black wire and a close route to running the green wire to the ignition coil.
White wire (Dash lights): to fuse block "lamps" connection
Red wire (Power): to fuse block "ign. fused" connection
Black wire (Ground): engine to firewall ground strap on the firewall
Green wire: negative of the ignition coil
Please excuse the cheap incorrect reproduction washer pump. Once I fix the original I will be putting it back in. Yeah, yeah I also know about the over spray. Other than a 80's repaint the owner left everything else original so I can't complain too much!
Connections to the fuse block:
Underhood connections: (the ground connects to the ground screw just below the wiper motor)