Author Topic: A/C vacuum control valve  (Read 1361 times)

Offline 1967FEGT

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A/C vacuum control valve
« on: July 14, 2020, 09:09:29 PM »
I have a 67 car with the large tank style vacuum reservoir. There is a round check valve that is just in and out. It is not like the three way tilt steering valve. Does anyone have the factory part number for the valve?

Offline jwc66k

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Re: A/C vacuum control valve
« Reply #1 on: July 14, 2020, 09:48:56 PM »
You will find that information in the library section under topic "ConcoursMustang.com Official 67 Mustang Article List" which has a copy of the "65-72 Ford Car Parts" (aka MPC). The MPC has your answer.
Jim
I promise to be politically correct in all my posts to keep the BBBB from vociferating.

Offline 67gta289

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Re: A/C vacuum control valve
« Reply #2 on: July 15, 2020, 08:04:25 AM »
You are looking for a C6OZ-19A563-A check valve.

I've seen the same part used for tilt, A/C, and cars equipped with both.  I've never seen a 3-port check valve on a 67 Mustang.  I see 3 and 4-port valves on Cougars, Lincolns, T-Birds, Cyclones, etc.

John
67 289 GTA Dec 20 1966 San Jose
7R02C156xxx
MCA 74660

Offline RoyceP

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Re: A/C vacuum control valve
« Reply #3 on: July 15, 2020, 11:52:27 AM »
It was used on '67 Cougars until mid year.

https://secure.cougarpartscatalog.com/67check.html?sessionthemeid=26

WCCC likely has them on a car in the yard.


You are looking for a C6OZ-19A563-A check valve.

I've seen the same part used for tilt, A/C, and cars equipped with both.  I've never seen a 3-port check valve on a 67 Mustang.  I see 3 and 4-port valves on Cougars, Lincolns, T-Birds, Cyclones, etc.
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 1967FEGT

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Re: A/C vacuum control valve
« Reply #4 on: July 17, 2020, 12:44:05 AM »
I found an NOS C5AZ-19A563-A1. Should that work for this application? I see it listed under the recommended in the MPC.

Offline Bob Gaines

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Re: A/C vacuum control valve
« Reply #5 on: July 17, 2020, 12:48:45 AM »
I found an NOS C5AZ-19A563-A1. Should that work for this application? I see it listed under the recommended in the MPC.
Are you wanting something that will work /function or something that will work AND looks the historical part?
Bob Gaines,Shelby enthusiast, Shelby collector , Shelby concours judge SAAC,MCA,Mid America Shelby

Offline 1967FEGT

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Re: A/C vacuum control valve
« Reply #6 on: July 17, 2020, 01:37:39 AM »
It looks like what I found in illustrations for the car. Is there some difference that isn't seen by the eye?

Offline Bob Gaines

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Re: A/C vacuum control valve
« Reply #7 on: July 17, 2020, 01:44:47 AM »
It looks like what I found in illustrations for the car. Is there some difference that isn't seen by the eye?
Why don't you post a picture.
Bob Gaines,Shelby enthusiast, Shelby collector , Shelby concours judge SAAC,MCA,Mid America Shelby

Offline 1967FEGT

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Re: A/C vacuum control valve
« Reply #8 on: July 17, 2020, 01:50:11 AM »
Bob, Here you are.
« Last Edit: July 17, 2020, 01:52:26 AM by 1967FEGT »

Offline 67gtasanjose

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Re: A/C vacuum control valve
« Reply #9 on: July 17, 2020, 05:29:11 AM »
Bob, Here you are.

This one has two different hose sizes, the correct one will have two of the larger (1/4") hose nipples.
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 Bob Gaines

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Re: A/C vacuum control valve
« Reply #10 on: July 17, 2020, 05:54:10 PM »
Bob, Here you are.
That is why I asked Are you wanting something that will work /function or something that will work AND looks the historical part? You can make that part work and function but it is for a different application.
Bob Gaines,Shelby enthusiast, Shelby collector , Shelby concours judge SAAC,MCA,Mid America Shelby

Offline 1967FEGT

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Re: A/C vacuum control valve
« Reply #11 on: July 18, 2020, 10:56:05 PM »
Thanks, Bob. I looked the part number provided by the shot of the MPC.  Three came up on Ebay. The difference is the large in-out on both sides of the valve. It's also 85.00 Vs 25.00. otherwise it did look the same. If the valve functions the same I could easily make it large in-out without anyone being the wiser without removal of the vacuum line.

Offline Bob Gaines

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Re: A/C vacuum control valve
« Reply #12 on: July 18, 2020, 11:50:36 PM »
Thanks, Bob. I looked the part number provided by the shot of the MPC.  Three came up on Ebay. The difference is the large in-out on both sides of the valve. It's also 85.00 Vs 25.00. otherwise it did look the same. If the valve functions the same I could easily make it large in-out without anyone being the wiser without removal of the vacuum line.
A one way valve is a one way valve as far as I know so go for it.
Bob Gaines,Shelby enthusiast, Shelby collector , Shelby concours judge SAAC,MCA,Mid America Shelby

Offline 1967FEGT

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Re: A/C vacuum control valve
« Reply #13 on: July 19, 2020, 03:39:40 AM »
Thank you Bob. I wasn't sure if they worked in the same fashion. I have learned that because they look the same doesn't mean they work the same. It's why I asked you.

Offline Bob Gaines

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Re: A/C vacuum control valve
« Reply #14 on: July 19, 2020, 04:07:24 AM »
Thank you Bob. I wasn't sure if they worked in the same fashion. I have learned that because they look the same doesn't mean they work the same. It's why I asked you.
You are correct it is a one way valve.
Bob Gaines,Shelby enthusiast, Shelby collector , Shelby concours judge SAAC,MCA,Mid America Shelby