• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

I want to put another 1/2 inch or 3/4 inch hole in firewall

Russ69Runner

Well-Known Member
Joined
Aug 4, 2016
Messages
7,787
Reaction score
3,337
Location
Lake Wales Fl.
This is so I can run heat temp line Oil pressure line and water temp. Too a set of sun pro gage's. So where would be the best place to put the hole so it dose not inner fear with any thing else like windshield wiper or other stuff. Any ideas will be appreciated want to do this while cutting holes for Ac hose's. Want to seal the holes with paint.
 

CompSyn

Well-Known Member
Joined
Jun 18, 2010
Messages
255
Reaction score
42
Location
Lewiston, Idaho USA
This is so I can run heat temp line Oil pressure line and water temp. Too a set of sun pro gage's. So where would be the best place to put the hole so it dose not inner fear with any thing else like windshield wiper or other stuff. Any ideas will be appreciated want to do this while cutting holes for Ac hose's. Want to seal the holes with paint.

You could drill the hole for the factory tach wire. It would be a factory correct hole location. I think the factory hole might closer to 3/4" or so but you could probably drill it for a 1/2" car-plug if you wanted?

31405087878_51fc670822_c.jpg
 
Last edited:

dmartin

Well-Known Member
Joined
Aug 30, 2013
Messages
952
Reaction score
344
Location
Georgia
I believe I ran mine through the speedometer cable hole cause it already has a grommet for that
 

Russ69Runner

Well-Known Member
Joined
Aug 4, 2016
Messages
7,787
Reaction score
3,337
Location
Lake Wales Fl.
You could drill the hole for the factory tach wire. It would be a factory correct hole location. I think the factory hole might closer to 3/4" or so but you could probably drill it for a 1/2" car-plug if you wanted?

View attachment 26636
That is grate still will have to cut another hole for my AC control's. Have a diaphragm for that. Thanks.
 

Russ69Runner

Well-Known Member
Joined
Aug 4, 2016
Messages
7,787
Reaction score
3,337
Location
Lake Wales Fl.
Well think I will opt out on the gun. I have a set of hole knock out set used in putting holes in electrical panel boxes. No powder burns around the hole this way. :lol:
 

Ranger

Well-Known Member
Joined
Dec 25, 2014
Messages
1,462
Reaction score
249
Location
Woodstock ll
I just drilled a hole to the left of the glove box as high as I could get it from the inside.
 
Back
Top