engine bay question

myslo50 · Mar 20, 2008

i dont have a welder to fill my holes, so could i use fiberglass, jb weld, liquid nails?
if fiberglass, would the engine torque crack and brake it off? or should i wait until i do a real motor to completely smooth it. including using sheetmetal?

Z06killinSBF · Mar 20, 2008

You can make 'glass covers to fit. If you you get ballsy, you can glass over you harness and all kinda hardware. That would look really slick and custom.

myslo50 · Mar 20, 2008

im not that creative, i was just talking about using frberglass filler on the small holes?

Z06killinSBF · Mar 20, 2008

Yea, that green glass filler is TOUGH stuff. It will hold up.

Use the filler from the back side and put a piece of tape over the hole in the compartment and it wont need much sanding or filling when dried. Just a thought.

87foxstang · Mar 20, 2008

Z06killinSBF said:
Yea, that green glass filler is TOUGH stuff. It will hold up.

Use the filler from the back side and put a piece of tape over the hole in the compartment and it wont need much sanding or filling when dried. Just a thought.

exactly what I did

4G-KDMP · Mar 20, 2008

Z06killinSBF said:
Yea, that green glass filler is TOUGH stuff. It will hold up.

Use the filler from the back side and put a piece of tape over the hole in the compartment and it wont need much sanding or filling when dried. Just a thought.

Any pix you'd like to share ?

Z06killinSBF · Mar 21, 2008

Not with me but thats how I have done all my filling of small (ie. emblems) holes. Works awesome.

SVT32VDOHC · Mar 21, 2008

I would use Duraglass. It is bondo with fiberglass in it. you can get it with short strands or long strands.

daviszx3 · Mar 21, 2008

so you can use fiberstrand to fill in the holes in the engine bay instead of welding them? will that stuff hold up as well

stykthyn · Mar 22, 2008

if the areas are prepped correctly it should hold. both the products mentioned are very durable and if used correctly will last the life of the car.

SVT32VDOHC · Mar 22, 2008

There isn't really any flex in the aprons of the engine bay. Filling those tiny holes with bondo is fine. Some weld them, but you don't have to. The guys who weld over them use bondo anyways to smooth it out. With or without weld, it has a possiblilty of cracking....but it probably won't.

MAC'n89Blckstng · Mar 22, 2008

the problem with filling the holes is that moisture can get between the filler and the metal and crack out that way. Might as well wait and weld em. You can get a small welder fir like 400 bucks. Im doing my engine bay now and welding is the only way to go, plus I do body work for a living and this way is proven to not crack out.

ALMOST STOCK · Mar 22, 2008

Dime size or smaller holes you might be ok using a filler to fill the hole, but I wouldn't and anything larger than dime size I'd definitely suggest welding them to be on the safe side.

But then again that's just me

myslo50 · Mar 22, 2008

i dont know what i want to do now. i want to fill some holes but i dont have the money to buy a welder right now. i thing i might try to just use the fiberglass stuff for now, and see how it looks. i got to get sand for my blaster, cause there is some hella rust in the bay.

satanas · Mar 23, 2008

Try to use the filler with the long strands the top coat it with the regular bondo. It will last longer.If you don't weld it.

Z06killinSBF · Mar 24, 2008

satanas said:
Try to use the filler with the long strands the top coat it with the regular bondo. It will last longer.If you don't weld it.

x2

Dean85GT · Mar 24, 2008

What about all those dimples on the firewall....the ones that arent actually holes. Would the bondo hold up on those?

Jmunk · Mar 24, 2008

I would try to find someone with a welder to help you out, that is just me.

Z06killinSBF · Mar 24, 2008

Dean85GT said:
What about all those dimples on the firewall....the ones that arent actually holes. Would the bondo hold up on those?

Yes, conventional body filler (or how everyone likes to call it "Bondo") will fill the dimples just fine. Make sure that all the paint and contaminants are off the surface. I would clean everything with wax/grease remove then hit it all with a wire brush. Just make sure you clean before you do the next step. The surface also cant be smooth, make sure the body filler ("Bondo") has something to grip to.

SVT32VDOHC · Mar 24, 2008

I filled a couple holes on this 00 GT I had....I also covered up some welds I grinded down. I used Evercoat Glazing/Finishing Metal Putty. It spreads easier than Bondo, and sands easier. I had the car about 3,000 miles and sold it to a friend. 4 years later it looks great. I love that stuff.

engine bay question

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