Author Topic: Can anyone identify this piece?  (Read 2890 times)

Offline RocketScientist

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Can anyone identify this piece?
« on: November 17, 2016, 01:36:05 AM »
This came out of a bag that contained bits and pieces left over from the restoration of my 67. The leftover bits were mainly windshield washer parts (nozzles, tees etc.) which makes me think that this part comes from this area. It is made of copper and I haven't seen it before on any other 67's and I am curious to know where it goes (if it goes anywhere). My car is a stock, SJ built (July 67), C code fastback.
Brad

Offline CharlesTurner

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Re: Can anyone identify this piece?
« Reply #1 on: November 17, 2016, 01:42:29 AM »
It goes on the passenger side of the cowl, ground strap for the hood.
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Offline RocketScientist

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Re: Can anyone identify this piece?
« Reply #2 on: November 17, 2016, 10:11:22 AM »
Thanks, I have seen ground straps on 69/70's but never on 67's. I guess after a 20 year absence, the little fella is going back to where he belongs.

Offline 67gtasanjose

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Re: Can anyone identify this piece?
« Reply #3 on: November 17, 2016, 11:42:50 AM »
It goes on the passenger side of the cowl, ground strap for the hood.

+1

a rather NOT NEEDED item if you don't listen to AM Radio much. (unless you are a Concours nut-job like the majority of us ;) )
Richard Urch

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2005 (04/05) GT Premium Convertible, Windveil Blue, Parchment Top w/Med. Parchment interior,  Roush Body Appointments

Offline RocketScientist

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Re: Can anyone identify this piece?
« Reply #4 on: November 17, 2016, 08:28:41 PM »
For nigh on 20 years it has always bugged me that there has been a screw hole on the cowl and nothing obvious to fill it with. There is nothing worse than seeing random holes with no purpose! it goes to show that a restoration is never completed as there is always something that comes up.

Offline BKnapp

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Re: Can anyone identify this piece?
« Reply #5 on: November 17, 2016, 09:48:07 PM »
Wow....I may have found the only original piece to my car. Although the PO painted over it, I assume this should have been bare.
Bill

‘67 390 Coupe A/T  P/S  P/B. (Built 1/4/1967)  7R01S145xxx
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Offline krelboyne

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Re: Can anyone identify this piece?
« Reply #6 on: November 17, 2016, 10:24:50 PM »
According to the 1968 Electrical Assembly Manual, the cowl ground strap is called the "Strap - Radio Receiver Hood Bonding."

Ford part # C5AA-18870-A, the screw carries a part # of 380923.
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Offline jwc66k

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Re: Can anyone identify this piece?
« Reply #7 on: November 18, 2016, 12:16:45 AM »
- the screw carries a part # of 380923.
You left off the important part of the part number - S36 - a gold zinc finish (typical for electrical conductivity).
Jim
I promise to be politically correct in all my posts to keep the BBBB from vociferating.

Offline 67gtasanjose

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Re: Can anyone identify this piece?
« Reply #8 on: November 18, 2016, 05:36:31 AM »

(unless you are a Concours nut-job like the majority of us ;) )

You left off the important part of the part number - S36 - a gold zinc finish (typical for electrical conductivity).
Jim

Speaking of "nut" jobs...

Jim sure knows his nuts, bolts, washers....descriptions including finishes etc. (hope I didn't miss anything)  ;D
Richard Urch

1967 (11/2/66, S.J.) GTA Luxury Coupe, 289-4V w/Thermactor Emissions, C-4, Int./Ext. Decor +many options

2005 (04/05) GT Premium Convertible, Windveil Blue, Parchment Top w/Med. Parchment interior,  Roush Body Appointments

Offline jswoody

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Re: Can anyone identify this piece?
« Reply #9 on: June 18, 2020, 09:51:27 AM »
You left off the important part of the part number - S36 - a gold zinc finish (typical for electrical conductivity).
Jim

I know this is an old topic however I have a question regarding the finish.  When these were installed were they clean gold zinc in finish?  Mine, while it was 50 years old when removed appeared to have a black paint on it.

Offline RoyceP

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Re: Can anyone identify this piece?
« Reply #10 on: June 18, 2020, 10:13:07 AM »
Yes they were.




I know this is an old topic however I have a question regarding the finish.  When these were installed were they clean gold zinc in finish?  Mine, while it was 50 years old when removed appeared to have a black paint on it.
1968 W code 427 Cougar XR-7 GTE Feb 23 Dearborn C6 / 3.50 open
1968 R code 428CJ Cougar XR-7 May 13 Dearborn C6 / 3.91 T - Lock

Offline 196667Bob

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Re: Can anyone identify this piece?
« Reply #11 on: June 18, 2020, 12:19:48 PM »
Both the 1966 and 1967 Shop Manuals are very misleading on this item, noting that the Hood Strap was only used on Intermediate Mercury Models. Yet, the 1967 Electrical Assembly Manual clearly shows that was used on Mustangs also (copy attached), as does the picture Royce attached, and the picture of mine attached here that I took during disassembly of my Engine Compartment.

These straps were part of the Radio Installation/ Suppression Kits that came for every Radio. Unfortunately, many times, not all of the components were installed. I have attached a picture of a typical Kit and its contents (the one attached is for a Full Size 1967 Ford).

These hood Straps were included in Radio Installation Kits back to at least 1957. Until the early 60's, they were Brass, making a good grounding material.
And yes, those are "points" on the top of the strap, and yes, they will scratch the underside of your hood - that of course is the intent in order to make a good ground.

Hope this helps.

Bob

1966 Coupe, C Code, 3 Sp MT, 6T07C154XXX, Build Date 11/22/65
1967 Conv, C Code, C4, 7F03C154XXX, Actual Build Date 01/31/67
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Offline jwc66k

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Re: Can anyone identify this piece?
« Reply #12 on: June 18, 2020, 01:39:37 PM »
I know this is an old topic however I have a question regarding the finish.  When these were installed were they clean gold zinc in finish?  Mine, while it was 50 years old when removed appeared to have a black paint on it.
In general, gold zinc finishes (-S36) were used by Ford in electrical circuit grounds. A few gold zinc items were used in 1966 and 67, but became more prevalent in 1968 and on.
Black paint was an indication of a previous owned "touching" up something.
Jim
I promise to be politically correct in all my posts to keep the BBBB from vociferating.

Offline Bob Gaines

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Re: Can anyone identify this piece?
« Reply #13 on: June 18, 2020, 02:15:39 PM »
I know this is an old topic however I have a question regarding the finish.  When these were installed were they clean gold zinc in finish?  Mine, while it was 50 years old when removed appeared to have a black paint on it.
The purpose was to ground the hood so being painted black or any other color would defeat the continuity purpose of the part. They are made of I believe a flexible copper alloy and not solid brass although brass may be part of the alloy. They had what is referred to a a industrial polish . Basically that means they are subject to a chemical process which makes them shiny. There was no coating I have been able to distinguish over the copper/brass  surface. I have not found evidence of them being plated zinc gold. The Zinc gold/ Zinc Dichromate  process typically mandates a initial base coat of zinc silver for the gold coating to stick to. When the then gold coating wears off it is typically silver underneath. Of the thousands I have seen over the years I never found any that were silver which eliminates the zinc gold as a finish coating in IMO. All of the NOS ones I have had or seen from radio kits had what is best described as industrial polished copper/brass finish.  I have only found them with is best described IMO as a oxidized copper/brass surface .   
« Last Edit: June 18, 2020, 02:19:07 PM by Bob Gaines »
Bob Gaines,Shelby enthusiast, Shelby collector , Shelby concours judge SAAC,MCA,Mid America Shelby

Offline J_Speegle

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Re: Can anyone identify this piece?
« Reply #14 on: June 18, 2020, 03:24:13 PM »
The purpose was to ground the hood so being painted black or any other color would defeat the continuity purpose of the part. They are made of I believe a flexible copper alloy and not solid brass although brass may be part of the alloy. They had what is referred to a a industrial polish .....................All of the NOS ones I have had or seen from radio kits had what is best described as industrial polished copper/brass finish.  I have only found them with is best described IMO as a oxidized copper/brass surface .

+1 Not painted nor plated  Sure we can find one and cut it or even sand the surface showing that the exterior and the base metal are the same. Have sanded, wire wheeled and polished a number over the years so real confident in what any of us will find with an original
Jeff Speegle

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