Welding up holes in a firewall!

Buddy of mine would slice bolts to make the plugs works good

 

is it a trick? that was one of the first lesson i got in highschool

 

i used to work for a factory when we punched out holes the local garage come and get i for free...

i know the factory still trow them away

 

One Thanksgiving, my nephew had blown up his car speakers (again!), and was replacing them. He gave me his old blown up ones when I asked for them. Now I have a pair of nice 5 lb. magnets to hold things together so I can tack weld them.

 

Go to a fab shop with a punch press and look in the s**** bin
Works for me every time and there FREE
For the odd sized holes just make them a real size with a unibit.

 

I know EVERYHING has been covered And thats whats cool is a few guys never heard of bob drake and now it just put money in his pocket and saved dude alot of time cutting 3/4" holes out with a pair of tin snips...lol

 

Zactly, like me. The discs are an awesome solution but so are a few of the other suggestions. Glad I came across the thread!

 

Call it what you want trick, idea , lesson, right way, wrong way ..whatever you want to ...i didnt post this thread so people could tell me its already been done, thats old news, or i learned it in high school..Some people havent ever heard of it..Ive seen cars with a bunch of little strips of sheetmetal behind the holes so im pretty sure they havent heard of it..Not trying to play big **** little **** just wanted to start a thread about firewalls

 

what about fillin a hole that was cut out by drillin a bunch of little holes in a circle

 

Draw a circle around it to clean it up and cut a new circle out of sheetmetal and weld it back in..

 

aa dustin whats up? staying busy with work?

 

Br*** is a alloy of copper and zinc and weld form a mig wont stick to it either. You can get br*** sticks in different sizes from any decent metal shop. You can also take copper plumbing pipe and flatten it out and put a 45 degree bend to hold it against the inside of the panel. Differnt sizes and shapes allow you to get the backer material in small areas behind the body panel in tight areas.

Attached is the two main backer peices I use and honestly, I am not sure it they are br*** or copper, but they work great. I think they are br*** and I labeled the pic as such, but they are really heavy for their size, so they could be copper.

 

looks like copper to me, br*** is more gold colored. either work fine!

 

Tman, thanks for the link, Kevin Lee sure makes one hell of a tech!

 

Sometimes when I go to my jobsite I'll stop and pick up some knock-outs off the floor. They're usually 1", so I asked and electrician where the 1.5" ones were and got a handful of those too. My superintendent was looking at me like I'm a nut, then I told him what I needed them for and he still looked at me funny. I told him if hot rodding was easy everyone would do it.