ConcoursMustang Forums
1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1966 Shelby => Topic started by: gimmea250swb on February 09, 2021, 01:13:35 PM
-
I swear I either asked this question in the past or saw a post, but I can?t find it now. I?m doing some Phosphate Oil touch ups and know there are some parts on the carb that should be done. Can somebody point me in the right direction?
Hmm, looks like I?ve got a swimming pool on the intake...
-
The only piece in that pic I can see that should be p&o is the clip for the accelerator rod.
-
The only piece in that pic I can see that should be p&o is the clip for the accelerator rod.
Thank you Charles!!
-
I swear I either asked this question in the past or saw a post, but I can?t find it now. I?m doing some Phosphate Oil touch ups and know there are some parts on the carb that should be done. Can somebody point me in the right direction?
Hmm, looks like I?ve got a swimming pool on the intake...
The accelerator pump activating arm should be dark PO looking. The C clip is gun blued but i don't see one in the picture.
-
+1 for both items
-
The accelerator pump activating arm should be PO. The C clip is gun blued but i don't see one in the picture.
Thank you Bob, this is the guy for the pump arm? Hopefully it?s easy to remove!!!
Is this where the missing c clip would be?
-
Not Bob :) but here is a picture of an unrestored example
(http://www.concoursmustang.com/forum/gallery/15/6-090221172551.jpeg)
As a side comment originally the carb to intake nuts didn't use a flat washer as shown in your picture. Guessing your trying to protect the carb base from scaring
-
I thought the arm was black zinc??
-
I thought the arm was black zinc??
I do not think it is black zinc. Black zinc has a iridescent look like gold zinc .black zinc is too shiny also. The arm has more of a flat sheen. Dark PO or black oxide IMO. I have used quick black before to get a similar look too.
-
I've often stripped off the rebuilders plating and used gun blueing repair or quick black without burnishing either. Both basically very similar
Final look it IMHO is the guiding factor
-
are you referring to a product called Instablack?
https://silverbackink.com/instablack-4oz-bottle.html
-
are you referring to a product called Instablack?
https://silverbackink.com/instablack-4oz-bottle.html
No
Number of companies make similar solutions often the names, Black Oxide, Parkerizing and other terms get tossed around
A few examples that popped up - often used or recognized companies
https://www.epi.com/black-oxide/steel/room/insta-blak-333/ (https://www.epi.com/black-oxide/steel/room/insta-blak-333/)
Might want to turn down the volume for this one
https://caswellplating.com/metal-finishing-solutions/black-oxide-kits.html (https://caswellplating.com/metal-finishing-solutions/black-oxide-kits.html)
https://www.birchwoodtechnologies.com/products/black-oxide/ (https://www.birchwoodtechnologies.com/products/black-oxide/)
-
I pulled the arm. The groove for the c clip is closer to the body. That?s where the c clip was. Thoughts? It?s not a 2Sms carb so maybe b/c it?s newer.
-
I pulled the arm. The groove for the c clip is closer to the body. That?s where the c clip was. Thoughts? It?s not a 2Sms carb so maybe b/c it?s newer.
You can change out the stud pretty easy
-
I looked at a collection of spare 1960s Holley? accelerator pump rocker arms (a.k.a. accelerator pump lever) and two R-3259-1s yesterday including a new old stock arm I installed on one of my carburetors yesterday.
The finish is not a crystalline phosphate and oil. It is smooth and hard with just a little gloss. It is extremely thin.
The carburetor in the original post is a post production replacement. Most of the post production replacements made since the late 1970s used applicable small parts from them current product lines. Said another way, parts were used for the job required and not an attempt to reproduce an assembly line carburetor. (The also occasionally had mistakes in calibrated orifice diameters.) The bright accelerator pump rocker arm has the shape of the 1960s part but not the dark finish. The screw and stop nut used in the over travel mechanism are very different than what Holley used in the 1960s. The rocker arm stud was also a later part and that is why the e-clip groove is hidden.
I have some 1960s rocker arms with a faint bronze appearance depending on lighting and view angles. Under my microscope at 20X there is of course red rust where ever the black finish failed for any reason including physical damage. There is and interesting secondary feature. Imagine taking the parts finished in black and mixing them in with something made of copper and rolled around just a little bit. There is what appears, to me, to be a copper or copper colored marking faintly all over on top of the black. I wonder if the black finish contains a copper compound that can create the affect?
(http://www.saacforum.com/gallery/274-110221171602.jpeg)
-
as an aside, no washer was used under the base plate hold down nut.
-
When I did my seat plates with Caswell zinc and black dichromate I got the copper base and the iridescent look.