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Old 04-06-2020, 05:35 PM   #1
8man
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Firewall replace??

I need to replace the firewall and have no idea how I'm going to hold it in place to plug weld it.

Does anyone have any tips and tricks for doing this?

Thanks
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1948 on a S10 Frame, small block with a carb
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Old 04-06-2020, 06:13 PM   #2
crossfire84
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Re: Firewall replace??

Use Cleco clips or sheet metal screws.
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Old 04-06-2020, 07:29 PM   #3
mongocanfly
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Re: Firewall replace??

If your doing a overlapped seam , then Clecos X2....all you'll have is 1/8 holes where they were..start in the center and work out to the ends
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Old 04-06-2020, 08:55 PM   #4
mr48chev
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Re: Firewall replace??

I learned to use clecos when I worked at Boeing in 1966 and they are great for holding overlapping panels. We would use the pre drilled rivet holes for them on aircraft panels.

They are spring loaded so you can't get them hot. I got a kit off
Ebay a year or two ago to use on overlapping panels.
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Old 04-11-2020, 12:55 AM   #5
LOW A D
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Re: Firewall replace??

I agree clecos the best way but you can also use self tapping screws to hold a panel in place where clamps don't work. In this pic you can see the clecos holding my firewall in place
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Old 04-11-2020, 08:08 AM   #6
8man
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Re: Firewall replace??

Thanks guys. I will try them.
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1948 on a S10 Frame, small block with a carb
1954 Cab, 53 Front and Bed, 50 Doors, S10 Frame, Power TBD
Build thread: "]http://67-72chevytrucks.com/vboard/showthread.php?t=746899&highlight=wife%27s+48[/URL]
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Old 04-11-2020, 08:19 AM   #7
whitedog76
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Re: Firewall replace??

Quote:
Originally Posted by LOW A D View Post
I agree clecos the best way but you can also use self tapping screws to hold a panel in place where clamps don't work. In this pic you can see the clecos holding my firewall in place
Great looking firewall, I need more details on it.
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Old 04-11-2020, 09:09 AM   #8
whitedog76
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Re: Firewall replace??

I love the arched look of the AD firewalls.

I want to move my engine back slightly , But I know I'll have some intake clearance issues.
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Old 04-11-2020, 10:59 AM   #9
LOW A D
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Re: Firewall replace??

Quote:
Originally Posted by whitedog76 View Post
Great looking firewall, I need more details on it.
Thanks, You can see how I built it if you look at my build
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Old 04-11-2020, 03:43 PM   #10
dsraven
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Re: Firewall replace??

I have heard of guys using a steel wheel barrow tub for an engine set back in the firewall. already formed to look like it was supposed to be there for the classic year.

https://www.bing.com/images/search?v...jaxhist=0&vt=0
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Old 04-12-2020, 12:49 AM   #11
whitedog76
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Re: Firewall replace??

I've seen the wheelbarrow firewall before. I actually picked up a Radio Flyer wagon with the same thought process. Since I did my MII install, everything changed, so I need to go up and back. LOW AD's firewall is exactly what I need. Back to the drawing board, I guess.
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Old 04-12-2020, 04:06 PM   #12
mr48chev
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Re: Firewall replace??

My buddy used a wheelbarrow in his Model A roadster and it worked pretty good. Used to be you could find a new metal garden wheelbarrow for about 20 bucks this time of year new but most are plastic now.

LS Fab makes some nice bead rolled firewalls For AD trucks but don't show any recesses. https://lsfab.ca/product-category/4754/ One would have to ask about the size of the opening around the engine though.
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My ongoing truck projects:
48 Chev 3100 that will run a 292 Six.
71 GMC 2500 that is getting a Cad 500 transplant.
77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.
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Old 04-12-2020, 07:27 PM   #13
e015475
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Re: Firewall replace??

Firewall for a 4" setback- made on a HF bead roller

Initial fitting with lots of clecos


From the inside of the cab-
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Old 04-13-2020, 03:37 AM   #14
MiraclePieCo
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Re: Firewall replace??

I used wide-jaw vice grips and those big triangular welding magnets.
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