tylersb350

i was just wondering if anyone has tried to fiberglass their firewall. i started mine a few days ago. i will be posting progress pics in the next day or two.

Mathius

This is probably going to end up being a really bad idea. You should always try to bond similar materials. I.e. metal for metal, fiberglass for fiberglass. At some point your fiberglass is going to crack from the vibration in the metal, if it doesn't just fall right off, because you're basically just gluing it to the metal. There isn't any real bonding going on except the fiberglass resin.

I'm guessing your intent is to smooth the firewall? If you can't weld, I would try to get some stainless, or aluminum, and just make some nice polished covers. Cut them out, get some nice stainless screws to install it, or even stainless rivets.

Mathius

tylersb350

i did weld in sheet metal where the blower motor and heater core were. i also filed in where all of the extra holes were except one for my wires.

tylersb350

http://F:\DCIM\101HP960\HPIM1400.JPG
http://F:\DCIM\101HP960\HPIM1401.JPG
http://F:\DCIM\101HP960\HPIM1392.JPG

here are som progress pics
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nevermind, those links dont work

joshh44

photos dont seem to work.
are you replacing your firewall??? like taking it out and putting in fiberglass or just covering it up???

Mathius

Well so then what is the fiberglass for?

Mathius

tylersb350

to make it all look smooth

tylersb350

just covered it up to make it smooth

Mathius

Again, I think you're going to have issues with cracking, etc. possibly with the fiberglass falling off altogether depending on how much and where you applied it.

The right thing to do would have been to weld it, grind your welds smooth, and then if necessary apply a small amount of body filler to smooth it out.

Mathius