Underdash Tach Install

[Mark Ascher]

Does anyone have a factory underdash tach in their car? I have one I'd like to put in,
but can't figure out how it mounts to the dash. The cup has a boss with the two tach wires coming through,
and another boss with a mounting screw. None of that correlates to anything obvious under the dash.
The FSM has a page in the accessory section showing the install, but that part is vague.

Is there a bracket that mounts to the underside of the dash for this? I'll post a few pics.

Mark

[66nailhead]

I mounted one in my 66 special. I left that boss on the tach and drilled a hole in the dash to feed that and the wires threw. Then I also drilled another hole for the mounting screw. Here's a pic. I'll try to get you a better  pic in the morning.  This is all I have on my phone right now.   




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[gssizzler]

There is a correct bracket ,it has a 1964 part number I have
Never seen one!.I always see them with to holes drilled in bottom of
dash! Bracket takes one.I have a drawing to get some made but no
Time or extra money right now.

[Brian]

Sizzler,
  If you send me the drawing for the bracket, I will see if I can get some of them made.  I have never seen one before either --just seen the graphical representation of it in the accessories section of the 64 Chasis service manual. 

[66nailhead]

I'd be in for a bracket too if you decide to make one. Here is another picture I took this morning.


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[35chevcoupe]

WOW !
 That looks Kool ,  I would be in for a bracket also if some can make them .

Was just looking on E bay and noticed there is a Buick tach someone has listed for a under dash application , can someone tell if that is the correct bracket ?   He has a buy it now for 499.95

[Mark Ascher]

Dan, Jon, Brian, John,

I would be in for a couple of brackets. Brian, I have a possible resource as well for making them.
The market is minuscule, maybe a handful of us. Let me know if I can help.
Dan, thanks for the pics! I have attached pics of the tach & under dash area where it mounts.
The ashtray is just to the right of the screw.

Mark

[Brian]

That is definitely a homeade bracket of some kind on the one on Ebay.   The Tach Mark has still has the correct mounting screw and un-cut wires with the correct connectors on them.  The best pictures of how to install the tach under the dash are in the back of the 65 Chasis service manual.  I will try to remember to scan it one night when I get home and post the picture here. 

[Mark Ascher]

Brian,

I have that page in the service manual marked, but how it mounts under the dash does not look
clear. It appears there is a bracket, but it doesn't show any detail.

I like the statements in the first page of the accessories section.

Mark

[gssizzler]

Drawing I have is by hand in pencil.I will see if can get it
Scannable

[gssizzler]

Sorry for the delay guys! a friend of mine did get to do a cad drawing of the bracket but I'm going to have to do a little redesign it's got to fit ,work and look right ! Or I will not do it! Does about a dozen or so sound right? Looking at cost they will be made by a machine shop so they will be nice a precise! Thanks Jon

[Mark Ascher]

Hi Jon,

Put me down for a couple. Thanks!

Mark