AC Lines

[skywalker]

I'm trying to run lines for my AC and I wanted to know what the best way to knock the hole in the firewall is? Do you just bang on it with something or does it need to be drilled?

 

[MustangB]

Use a Bi-Metal hole saw. It fits on a drill and makes a nice round hole. You can get these at HomeDepot or Lowes. They have MANY sizes.

 

[robbz28]

Get you a step drill....more sizes that a hole saw and makes a nice neat hole in sheet metal.

 

[Loup-garou]

If you're running the hoses on the driver's side of the engine, use the factory oval-shaped knockout plate. Just whack it with a hammer and drift punch, it'll open right up.


Classic Mustang Tech Article- How To Install a Concours '65-'66 A/C System

 

[skywalker]

If you're running the hoses on the driver's side of the engine, use the factory oval-shaped knockout plate. Just whack it with a hammer and drift punch, it'll open right up.


Classic Mustang Tech Article- How To Install a Concours '65-'66 A/C System

That was the confirmation I needed. Now I just need a hammer and punch