Topic: 1968 San Jose GT 390 Various Fasteners Confirmation and Finishes

[Bob Gaines]

Ah ok got it, thanks Jeff. Sorry I was referring the the other nuts & bolts that attach the booster to the firewall. I will mask off the booster and paint the rest of the assembly with the booster masked off

The nuts on the interior side of the booster are zinc silver with very late production possibly being coated with the safety red dye.  The bolt that is secured from the engine side is silver. With that said once the booster was installed it and all other things coming out of the firewall were spray sealed on the engine side of the firewall . In the case of the silver bolt holding the booster from the engine side it will appear black since it is typically covered with the sealer after installation.

[bullitt68]

The nuts on the interior side of the booster are zinc silver with very late production possibly being coated with the safety red dye.  The bolt that is secured from the engine side is silver. With that said once the booster was installed it and all other things coming out of the firewall were spray sealed on the engine side of the firewall . In the case of the silver bolt holding the booster from the engine side it will appear black since it is typically covered with the sealer after installation.

Thanks Bob great info

[bullitt68]

Just checking to confirm if these are the correct fasteners and if I have the finishes right. I cross referenced the Fastener Spreadsheet

Thanks

1. Front Spindle Arm Bolts (Phosphate & oil)
2. Shock Tower Carriage Bolts
3. Brake Line Bolts front frame wheel well (Silver Zinc)
4. Strut Rod Bolts  (Phosphate & oil)
5. Strut Rod Nuts (100)
6. Mystery Screw & Clip Firewall
7. Fuel Line Bolts  (Silver Zinc)
8. Quarter Panel Vents Studs (Gold Zinc Chromate)
9. Quarter Panel Vents Screws (Gold Zinc Chromate)
10.Quarter Panel Vents Nuts (Gold Zinc Chromate)
11.Quarter Panel Vents dome spacer(zinc silver)
12.Mystery Nuts & Bolts  (Gold Zinc Chromate)

[RoyceP]

Your photo #5 shows the copper bonding clip that reduces radio static caused by air flow across the hood. That clip is bare polished copper.

[bullitt68]

Your photo #5 shows the copper bonding clip that reduces radio static caused by air flow across the hood. That clip is bare polished copper.

Thanks Royce

[Bob Gaines]

Your photo #5 shows the copper bonding clip that reduces radio static caused by air flow across the hood. That clip is bare polished copper.

Just to clarify the copper metal was what they call chemically polished and is not the mirror polish that can be done on a buffing wheel .  If you polish it by hand it will typically be too shiny but if you let it dull down some over a couple weeks -month it looks more closely to the chemical polished luster. In other words in concours it shouldn't have a mirror finish.

[bullitt68]

Just to clarify the copper metal was what they call chemically polished and is not the mirror polish that can be done on a buffing wheel .  If you polish it by hand it will typically be too shiny but if you let it dull down some over a couple weeks -month it looks more closely to the chemical polished luster. In other words in concours it shouldn't have a mirror finish.

Thanks Bob. Where was the clip mounted on the firewall?

[Bob Gaines]

Thanks Bob. Where was the clip mounted on the firewall?

It wasn't mounted on the firewall. It was mounted on the cowl. It was on the passenger side close enough to make contact with the hood when is is closed. There should be a hole where it goes. Most likely Jeff S will come along with a pic.

[bullitt68]

It wasn't mounted on the firewall. It was mounted on the cowl. It was on the passenger side close enough to make contact with the hood when is is closed. There should be a hole where it goes. Most likely Jeff S will come along with a pic.

Great thanks Bob. I will check my teardown photos and see if I can find one showing where it was mounted. I don't recall seeing it so it may have been buried under paint.

[bullitt68]

It wasn't mounted on the firewall. It was mounted on the cowl. It was on the passenger side close enough to make contact with the hood when is is closed. There should be a hole where it goes. Most likely Jeff S will come along with a pic.

Hi Bob is this it?

[Bob Gaines]

Hi Bob is this it?

Yes.

[bullitt68]

Yes.

Hopefully Jeff has an original photo. Is it safe to assume that the cowl and hood should be bare metal where the contact is made on the clip

[RoyceP]

No, the pointy parts on the clip pierce the paint to effect the bond. Your photo shows the clip bent completely out of shape. It looks like this installed properly:

Hopefully Jeff has an original photo. Is it safe to assume that the cowl and hood should be bare metal where the contact is made on the clip

[bullitt68]

No, the pointy parts on the clip pierce the paint to effect the bond. Your photo shows the clip bent completely out of shape. It looks like this installed properly:

Thanks Royce appreciate it. Great shot. My car didn't even have the hood seal on it!

[RoyceP]

Here's an NOS one on eBay:
https://www.ebay.com/itm/NOS-67-68-Mustang-radio-hood-cowl-ground-strap-and-grease-cup-noise-suppressors/254506928334?hash=item3b41cb88ce:g:fmgAAOSwUBJdAVep