Author Topic: unknown holes in firewall  (Read 2421 times)

Offline S412gofast

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Re: unknown holes in firewall
« Reply #15 on: October 16, 2022, 09:19:40 PM »
I found some pics of when the car was up for sale. Yes, I keep almost 40 year old pics. The hole was there with nothing in it.

This car once had aftermarket air due to its location in the deep south. Lots of holes had to welded up. If I put my smart cap on this may well have been a way to feed a 12V electric line directly in-line with the inside evaporator. It could also be a way to to send power to the A/C clutch.

Time to make that hole go away.

I too found some old pics from when we acquired the car in late 80s and nothing in the holes...it will remain a mystery

but now is the time for the disappearing act
1967 GT350 01341, FORD Build: 2/28/67 ; SAI Build 3/28/67
1966 GT 2+2, 4spd, PS, tinted windows, Raven Black w/Black Pony interior; FORD Build: 10/11/65
1986 SVO, Oxford White w/Leather interior
1987 Saleen #132 Dark Gray Metallic

Offline midlife

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Re: unknown holes in firewall
« Reply #16 on: October 16, 2022, 10:15:18 PM »
[Sgt. Schultz voice] I see nothing!  I know nothing! [/Sgt. Schultz voice]
Midlife Harness Restorations - http://midlifeharness.com

Offline S412gofast

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Re: unknown holes in firewall
« Reply #17 on: October 16, 2022, 11:49:40 PM »
[Sgt. Schultz voice] I see nothing!  I know nothing! [/Sgt. Schultz voice]
😂😂😂
1967 GT350 01341, FORD Build: 2/28/67 ; SAI Build 3/28/67
1966 GT 2+2, 4spd, PS, tinted windows, Raven Black w/Black Pony interior; FORD Build: 10/11/65
1986 SVO, Oxford White w/Leather interior
1987 Saleen #132 Dark Gray Metallic

Offline Bossbill

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Re: unknown holes in firewall
« Reply #18 on: October 17, 2022, 01:36:16 AM »
[Sgt. Schultz voice] I see nothing!  I know nothing! [/Sgt. Schultz voice]

If it was a hole for a wire then that's right up your alley!
Bill
Concours  Actual Ford Build 3/2/67 GT350 01375
Driven      6/6/70 0T02G160xxx Boss 302
Modified   5/18/65 5F09A728xxx Boss 347 Terminator-X 8-Stack
Race        65 2+2 Coupe conversion

Offline 67350#1242

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Re: unknown holes in firewall
« Reply #19 on: October 17, 2022, 10:31:55 AM »
Bossbill, 1242 has a punched hole in that location.  There is a nylon tie strap in that location (same as shock tower harness straps).  The strap holds both the choke cable and the alternator gauge harness close to the firewall prior to their entry through the firewall.  This is how I found my car - can't say if it is factory, but sure looks like that was original intention.
Makes sense that although Ford wouldn't use a hand punch to make a hole,  Shelby would.
« Last Edit: October 17, 2022, 12:17:09 PM by 67350#1242 »
67 Coupe SJ 11/16/66
67 GT350 SJ 2/01/67

Offline S412gofast

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Re: unknown holes in firewall
« Reply #20 on: October 17, 2022, 12:45:16 PM »
Bossbill, 1242 has a punched hole in that location.  There is a nylon tie strap in that location (same as shock tower harness straps).  The strap holds both the choke cable and the alternator gauge harness close to the firewall prior to their entry through the firewall.  This is how I found my car - can't say if it is factory, but sure looks like that was original intention.
Makes sense that although Ford wouldn't use a hand punch to make a hole,  Shelby would.

This is what was going through my mind when I noticed these on #1341.
1967 GT350 01341, FORD Build: 2/28/67 ; SAI Build 3/28/67
1966 GT 2+2, 4spd, PS, tinted windows, Raven Black w/Black Pony interior; FORD Build: 10/11/65
1986 SVO, Oxford White w/Leather interior
1987 Saleen #132 Dark Gray Metallic

Offline Bossbill

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Re: unknown holes in firewall
« Reply #21 on: October 17, 2022, 02:40:14 PM »
Bossbill, 1242 has a punched hole in that location.  There is a nylon tie strap in that location (same as shock tower harness straps).  The strap holds both the choke cable and the alternator gauge harness close to the firewall prior to their entry through the firewall.  This is how I found my car - can't say if it is factory, but sure looks like that was original intention.
Makes sense that although Ford wouldn't use a hand punch to make a hole,  Shelby would.

Thanks!

I'm writing to Dave Mathews to see if he has heard of this. It might just be a narrow application.
Bill
Concours  Actual Ford Build 3/2/67 GT350 01375
Driven      6/6/70 0T02G160xxx Boss 302
Modified   5/18/65 5F09A728xxx Boss 347 Terminator-X 8-Stack
Race        65 2+2 Coupe conversion

Offline J_Speegle

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Re: unknown holes in firewall
« Reply #22 on: October 17, 2022, 06:11:34 PM »
Agree the holes mentioned in the first post are not original

Bossbill, 1242 has a punched hole in that location.  There is a nylon tie strap in that location (same as shock tower harness straps).  The strap holds both the choke cable and the alternator gauge harness close to the firewall prior to their entry through the firewall.  This is how I found my car - can't say if it is factory, but sure looks like that was original intention.
Makes sense that although Ford wouldn't use a hand punch to make a hole,  Shelby would.

Its not :) Holes was a product of the build process at San Jose so is shared with K code Mustangs built there

The strap at least is a reproduction and not original to the car. Originally there was a metal half clamp that held the choke cable not the wire or loom.  Location of the hole can vary depending on possibly worker or when the car was built at San Jose

Of course found a number of examples where the prior owners repurposed the hole and different retainers to hold the Shelby wires, transmission wire loom or a combination of items

Examples from early through #2650




Jeff Speegle

Anything worth doing is worth doing concours ;)

Offline 67350#1242

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Re: unknown holes in firewall
« Reply #23 on: October 18, 2022, 05:09:54 PM »
Thanks Jeff.  I should check for evidence of threads in the hole.  Looks like the half clamp is similar to brake line clamps seen elsewhere.   I was not aware that Ford would use such a crude method to create a hole, but I guess that's just the way it was.
67 Coupe SJ 11/16/66
67 GT350 SJ 2/01/67

Offline J_Speegle

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Re: unknown holes in firewall
« Reply #24 on: October 18, 2022, 10:36:14 PM »
.................. I was not aware that Ford would use such a crude method to create a hole, but I guess that's just the way it was.

Crude?? Well not normally just depends on the plant and the process/part. There are examples of other plants and years where the choke cable hole appears to have been made with a punch and a big hammer.  ::)  That is why we look for multiple examples - same plant, production period, options and such to form opinions 
Jeff Speegle

Anything worth doing is worth doing concours ;)