1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Covering holes in firewall?

Thread Tools
 
Search this Thread
 
Old 03-06-03, 08:53 PM
  #1  
Senior Member

Thread Starter
 
TheTwinTurboRX-7's Avatar
 
Join Date: Mar 2001
Location: Raymond, ME / New Orleans, LA
Posts: 493
Likes: 0
Received 0 Likes on 0 Posts
Covering holes in firewall?

I have several holes in my firewall from removing various things, any suggestions on good things to cover them over with to keep fumes and heat from entering my cockpit??
Old 03-06-03, 10:46 PM
  #2  
RX for fun

iTrader: (13)
 
Siraniko's Avatar
 
Join Date: Aug 2001
Location: Socal
Posts: 15,926
Likes: 0
Received 22 Likes on 19 Posts
I used a black caulking from autozone, spatula to flatten it and an aluminum tape (HVACR silver tape) from homedepot. Tape it from the inside of cockpit if possible to keep it clean.
Old 03-06-03, 10:53 PM
  #3  
Senior Member

Thread Starter
 
TheTwinTurboRX-7's Avatar
 
Join Date: Mar 2001
Location: Raymond, ME / New Orleans, LA
Posts: 493
Likes: 0
Received 0 Likes on 0 Posts
not a bad idea
thanks
any other suggestions?
Old 03-06-03, 10:56 PM
  #4  
Never Follow

iTrader: (18)
 
82transam's Avatar
 
Join Date: Feb 2002
Location: North Jersey
Posts: 8,307
Likes: 0
Received 68 Likes on 50 Posts
Not sure which holes in particular your talking about so this may or may not be feasable, but fiberglass is pretty straightforward to do, and it will fill in the holes in such a way that you could paint over them if you want. I'm making this suggesstion with the assumption that you want a permanant thing done.
Old 03-06-03, 11:22 PM
  #5  
Senior Member

Thread Starter
 
TheTwinTurboRX-7's Avatar
 
Join Date: Mar 2001
Location: Raymond, ME / New Orleans, LA
Posts: 493
Likes: 0
Received 0 Likes on 0 Posts
that actually sounds like an even better idea
and yes permanent
mainly places where a/c went through
Old 03-07-03, 12:45 AM
  #6  
My wife bought me 2 RX-7s

 
MosesX605's Avatar
 
Join Date: Aug 2001
Location: Saskatoon, Saskatchewan, Canada
Posts: 2,328
Likes: 0
Received 2 Likes on 2 Posts
Fiberglassing would be my choice as well. If you don't plan on putting any of the things you've taken out, make it a solid and permament fix.
Old 03-07-03, 08:05 AM
  #7  
Senior Member

 
Eville140's Avatar
 
Join Date: May 2002
Location: Evansville, IN
Posts: 379
Likes: 0
Received 0 Likes on 0 Posts
My mustang had a bunch of big holes when I removed the a/c and heater box. I had a roll of roof flashing laying around. I just used tin snips to cut peices a little bigger than the holes and some good old liquid nails to stick it on. Looks nice from the engine compartment and takes paint well if you want to hide it completely.
I was a little worried about the liquid nails holding up to the heat, but some of it is within 6-10" from the turbine housing on the turbo and it has held up fine.

Later
Randy
Old 03-07-03, 08:11 AM
  #8  
Senior Member

 
lotsacars's Avatar
 
Join Date: Oct 2002
Location: Rochester, NY
Posts: 576
Likes: 0
Received 0 Likes on 0 Posts
If your engine is out you can weld them shut and paint over them. It will look like they were never there. This would fall in the waaaay-down-the-road category for me, but something I'd ultimately like to do.
Old 03-07-03, 08:24 AM
  #9  
male stripper

iTrader: (1)
 
jeremy's Avatar
 
Join Date: Oct 2001
Location: St Petersburg, FL
Posts: 3,131
Likes: 0
Received 1 Like on 1 Post
shoe goo. can be had at your local walmart in the shoe section. i'v held a car together with the stuff. works good on shoes too.
Old 03-07-03, 08:24 AM
  #10  
Rotary Enthusiast

 
damon's Avatar
 
Join Date: Mar 2002
Location: valdosta,ga
Posts: 781
Likes: 0
Received 0 Likes on 0 Posts
I just filled them al in with fiber glass and smoothed it out and repainted the engine bay, it been that way for a year and no problems yet.

peace
Old 03-07-03, 11:03 AM
  #11  
My FSP Fiesta eats Jettas

 
Wankelguy's Avatar
 
Join Date: Aug 2002
Posts: 1,616
Received 2 Likes on 2 Posts
I used corks that I bought at the hardware store. Quick, works fine, and provides amusement for people checking out my engine compartment. I also used corks to plug the unused holes in the air filter housing.
Old 03-07-03, 11:27 AM
  #12  
Plastic Jedi

 
JEC-31's Avatar
 
Join Date: Sep 2002
Location: Kentwood, Michigan
Posts: 583
Likes: 0
Received 0 Likes on 0 Posts
Corks, eh? That rules, but the fiberglass sounds a little more permanent. This is on my list too, along with plugging the holes in the floor.
Old 03-07-03, 12:19 PM
  #13  
Senior Member

Thread Starter
 
TheTwinTurboRX-7's Avatar
 
Join Date: Mar 2001
Location: Raymond, ME / New Orleans, LA
Posts: 493
Likes: 0
Received 0 Likes on 0 Posts
great when I pull my motor for repaint I will do that up too
sounde like a plan to fibetrglass it up, no more fumage, I am thinking duct tape for a temporary solution till repaint time in a month or so
Old 03-07-03, 03:31 PM
  #14  
I read your email

 
inittab's Avatar
 
Join Date: Jan 2002
Location: NW New Jersey
Posts: 2,624
Likes: 0
Received 1 Like on 1 Post
bubble gum
Old 03-07-03, 04:33 PM
  #15  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,832
Received 2,603 Likes on 1,847 Posts
mazda has rubber plugs for the cars without ac, you can use those for that factory look

mike
Old 03-08-03, 12:01 AM
  #16  
Function > Form

 
rotor vs. piston's Avatar
 
Join Date: Nov 2002
Location: Catonsville MD (baltimore suburb)
Posts: 10,890
Likes: 0
Received 3 Likes on 1 Post
Does anyone have a write up (or can someone do a write up) for fiberglass? It will help alot of people, me.
Old 03-08-03, 01:52 AM
  #17  
It's Back!

 
Suparslinc's Avatar
 
Join Date: Mar 2001
Location: Cincinnati
Posts: 1,049
Likes: 0
Received 1 Like on 1 Post
The Mazda plugs sound good, since I would leave it ready in case you decide to reinstall the A/C before you sell it.

On a similar topic, where can you find plugs for the rear wiper assembly? I think there was an old thread about this.
Old 03-08-03, 05:18 AM
  #18  
Apprentice Guru

 
PaulFitzwarryne's Avatar
 
Join Date: Oct 2001
Location: Cloud Nine and Peak of God
Posts: 1,425
Likes: 0
Received 0 Likes on 0 Posts
Fibreglassing is really simple. It consists ot three components
1. the glass which is either chopped mat, tape or woven cloth, the latter is what you want
2. the resin which in most cases is polyester
3. the hardner

-Clean up the area where you want to glass, about two inches round the hole
- cut the glass to shape using sharp scissors
- mix the resin and hardner usually 5% but read the instructions, not too much hardner or it goes off too quicly
-brush some of the mixture round the hole as glue and wet out the cloth with the resin, then put in place

The resin mix can be spread out with an ice lolly stick or old brush, you can use acetone to clear up but its expensive. Wet out is when the cloth goes transparent.It will then go hard in about 5 minutes depending on the temperature. It rubs down easily and there is no problem painting.

The whole process is cheap and quick.

Last edited by PaulFitzwarryne; 03-08-03 at 05:21 AM.
Old 03-08-03, 07:30 AM
  #19  
Damn, it did start!

 
Richard Miller's Avatar
 
Join Date: Feb 2001
Location: washington
Posts: 2,678
Received 365 Likes on 226 Posts
I put in stainless steel round beveled plugs that are used for electrical industrial apllications. it had a light brushing that I buffed out with a polishing wheel. comes with a rubber gasket.
Old 03-08-03, 11:00 AM
  #20  
Function > Form

 
rotor vs. piston's Avatar
 
Join Date: Nov 2002
Location: Catonsville MD (baltimore suburb)
Posts: 10,890
Likes: 0
Received 3 Likes on 1 Post
Thanks Paul Fitzwarryne
Old 03-08-03, 09:45 PM
  #21  
Never Follow

iTrader: (18)
 
82transam's Avatar
 
Join Date: Feb 2002
Location: North Jersey
Posts: 8,307
Likes: 0
Received 68 Likes on 50 Posts
When you use fiberglass its not a bad idea to wear some surgical type gloves, you don't wanna get that **** on your hands. I'm not sure what you guys are planning, but if you plan to use the fiberglass as a "backing" for paint (puting the glass on the inside of the hole) you don't need to worry about making it pretty.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
cewrx7r1
3rd Generation Specific (1993-2002)
15
08-06-18 11:41 AM
stickmantijuana
3rd Generation Specific (1993-2002)
13
01-09-18 11:19 AM



Quick Reply: Covering holes in firewall?



All times are GMT -5. The time now is 03:14 AM.