I doubt that it is the original and it needs some work so thinking I may as well buy a new "york style" one. I've read what I can find on the forum and apparently the original castings have some differences to the replacements so wondering what I have. Likely it's not original but would hate to not use it if it is....can anyone tell from these pics?
Thank you.
Is there a id tag attached to it? Mine says C8ZX on it.
Originals have the Shelby C8ZX tag. It can be transferred to a replacement.
nup there is no tag
You can have the one on the car rebuilt. A modern replacement will look different.
What year did they transition from the iron to aluminum compressors?
Quote from: 98SVT - was 06GT on July 26, 2022, 05:03:35 PM
What year did they transition from the iron to aluminum compressors?
It was not a transition . It is a MFG manufacturing difference. Also both styles had been used 65-70 Mustang depending on time period and plant. For example in 68 the Metuchen built Shelby came with the aluminum York where as Dearborn Mustangs used the iron Tecumseh .
What's more important than compressor is it appears you have original BB clutch. Hard to find
The original donut electro magnet type clutch's that I have seen on Shelby's were typically plated zinc silver like the field coil originally.
I have seen that style of adjusting idler pulley, but it is definitely not common. Is that a Metuchen thing? or more likely aftermarket replacement?
Quote from: Krelboyne on July 26, 2022, 10:56:01 PM
I have seen that style of adjusting idler pulley, but it is definitely not common. Is that a Metuchen thing? or more likely aftermarket replacement?
That is the exact idler pulley mount that I have.
Quote from: Bob Gaines on July 26, 2022, 09:23:04 PM
The original donut electro magnet type clutch's that I have seen on Shelby's were typically plated zinc silver like the field coil originally.
Yes with the contact areas machined to bare
Quote from: Krelboyne on July 26, 2022, 10:56:01 PM
I have seen that style of adjusting idler pulley, but it is definitely not common. Is that a Metuchen thing? or more likely aftermarket replacement?
Not Metuchen, I say aftermarket
Quote from: Bob Gaines on July 26, 2022, 09:23:04 PM
The original donut electro magnet type clutch's that I have seen on Shelby's were typically plated zinc silver like the field coil originally.
My research shows that the donut electro magnet style clutch is Pitts manufactured. Am not aware that they are serviced in the aftermarket.
Quote from: Krelboyne on July 27, 2022, 11:16:35 AM
Quote from: Bob Gaines on July 26, 2022, 09:23:04 PM
The original donut electro magnet type clutch's that I have seen on Shelby's were typically plated zinc silver like the field coil originally.
My research shows that the donut electro magnet style clutch is Pitts manufactured. Am not aware that they are serviced in the aftermarket.
Not much to go wrong with them. Classic auto air or whatever they are calling themselves or rebuild division used to rebuild them but you had to ask special to have them plated zinc silver. They painted them black otherwise. I have had a few plated locally but it has been years. I have been lucky find finding NOS units.
Quote from: Bob Gaines on July 27, 2022, 04:33:49 PM
Quote from: Krelboyne on July 27, 2022, 11:16:35 AM
Quote from: Bob Gaines on July 26, 2022, 09:23:04 PM
The original donut electro magnet type clutch's that I have seen on Shelby's were typically plated zinc silver like the field coil originally.
My research shows that the donut electro magnet style clutch is Pitts manufactured. Am not aware that they are serviced in the aftermarket.
Not much to go wrong with them. Classic auto air or whatever they are calling themselves or rebuild division used to rebuild them but you had to ask special to have them plated zinc silver. They painted them black otherwise. I have had a few plated locally but it has been years. I have been lucky find finding NOS units.
I got the impression that the clutch assembly might have been originally yellow zinc cad.
Mine had some yellow highlights on it in certain areas.
I've heard that yellow cad will "wash off" leaving the silver only?
Quote from: shelbydoug on July 27, 2022, 04:57:40 PM
Quote from: Bob Gaines on July 27, 2022, 04:33:49 PM
Quote from: Krelboyne on July 27, 2022, 11:16:35 AM
Quote from: Bob Gaines on July 26, 2022, 09:23:04 PM
The original donut electro magnet type clutch's that I have seen on Shelby's were typically plated zinc silver like the field coil originally.
My research shows that the donut electro magnet style clutch is Pitts manufactured. Am not aware that they are serviced in the aftermarket.
Not much to go wrong with them. Classic auto air or whatever they are calling themselves or rebuild division used to rebuild them but you had to ask special to have them plated zinc silver. They painted them black otherwise. I have had a few plated locally but it has been years. I have been lucky find finding NOS units.
I got the impression that the clutch assembly might have been originally yellow zinc cad.
Mine had some yellow highlights on it in certain areas.
I've heard that yellow cad will "wash off" leaving the silver only?
The only thing that is gold in this case is the bolt and washer holding the clutch to the shaft of compressor and maybe the bolts holding the field coil to the
Compressor. The clutch and field coil are silver.
There is also a detail that most people that get them plated overlook and it affects the function. The contact areas where the hub gets pulled into the plate by the magnet is machine bear steel for a better contact and holding. If left plated they tend not to hold as well when the magnet kicks on.
Quote from: Bob Gaines on July 27, 2022, 09:16:01 PM
Quote from: shelbydoug on July 27, 2022, 04:57:40 PM
Quote from: Bob Gaines on July 27, 2022, 04:33:49 PM
Quote from: Krelboyne on July 27, 2022, 11:16:35 AM
Quote from: Bob Gaines on July 26, 2022, 09:23:04 PM
The original donut electro magnet type clutch's that I have seen on Shelby's were typically plated zinc silver like the field coil originally.
My research shows that the donut electro magnet style clutch is Pitts manufactured. Am not aware that they are serviced in the aftermarket.
Not much to go wrong with them. Classic auto air or whatever they are calling themselves or rebuild division used to rebuild them but you had to ask special to have them plated zinc silver. They painted them black otherwise. I have had a few plated locally but it has been years. I have been lucky find finding NOS units.
I got the impression that the clutch assembly might have been originally yellow zinc cad.
Mine had some yellow highlights on it in certain areas.
I've heard that yellow cad will "wash off" leaving the silver only?
The only thing that is gold in this case is the bolt and washer holding the clutch to the shaft of compressor and maybe the bolts holding the field coil to the
Compressor. The clutch and field coil are silver.
I obviously can't prove what was originally on the car on the assembly line since I wasn't there.
I am just pointing out what I saw on the car when I got it that I think was original to it so it isn't an argument by me or an attempt to disrupt the discussion.
Thanks for your input everyone, always helpful and appreciated.
Posted for TLEA
(http://www.saacforum.com/gallery/8-280722150605.jpeg)
(http://www.saacforum.com/gallery/8-280722150650.jpeg)
Thanks Pete, I'm too stupid to post pictures. This is an assembly line BB clutch box dated june 68. Notice zinc plating, phosphate rivets and bare steel in clutch contact area