What is This?

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GregL
Posts: 97
Joined: Tue May 16, 2017 8:44 pm

What is This?

Post by GregL »

Hi Guys,
First pic is off the web. Second pic is of my engine (1957 312).
I just have a loose, temporary plug in my manifold in this spot. Is this a heater shut off switch of some type? I see it has a vacuum control.
I have two heater hose outlets on my water pump. Should the hose nipple marked #2 be removed and a plug installed there?
Appreciate any and all input.
Greg
Ford-Thunderbird-1957-312-engine5.jpg
20190905_210326.jpg

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55Greg&Amy
Posts: 1076
Joined: Sun Nov 09, 2008 8:43 am

Re: What is This?

Post by 55Greg&Amy »

Yes, hose nipple #2 should just be a plug. #1 and the vacuum valve are for the heater core loop.
B75810E2-9F9D-4F30-82DC-7C95D853268D.jpeg
2C85460D-E8C5-40A4-BF1D-EE09ACEF394E.jpeg
Greg Minnich
Fort Wayne, In

GregL
Posts: 97
Joined: Tue May 16, 2017 8:44 pm

Re: What is This?

Post by GregL »

Thanks Greg.

GregL
Posts: 97
Joined: Tue May 16, 2017 8:44 pm

Re: What is This?

Post by GregL »

Can anyone recommend a reasonable source for the heater valve?
It looks like they're pretty dear.

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paul2748
Posts: 1418
Joined: Sun Mar 15, 2009 12:23 am
Location: Northeastern New Jersey

Re: What is This?

Post by paul2748 »

Check with any of the TBird parts houses. They are the same as the sedans so you should be able to get one from someone such as C & G parts
GregL wrote:
Fri Sep 13, 2019 9:36 pm
Can anyone recommend a reasonable source for the heater valve?
It looks like they're pretty dear.
1956 Fiesta Red 312
1954 Ford Victoria 312
1948 Ford Convertible Street Rod 302

GregL
Posts: 97
Joined: Tue May 16, 2017 8:44 pm

Re: What is This?

Post by GregL »

Thanks Paul

seany-boy
Posts: 126
Joined: Sat Feb 01, 2014 5:38 am
Location: Melbourne, Australia

Re: What is This?

Post by seany-boy »

NOS periodically come up on ebay if you are concerned about authenticity.
https://www.ebay.com/itm/NOS-Aftermarke ... SwjG1dEgwX
https://www.ebay.com/itm/1952-1959-Ford ... 0005.m1851

I purchased a NOS one a couple of years ago after getting the seller to test it operated with vaccuum correctly. Just another option.
Red 57 Thunderbird 312
Location: Melbourne, Australia

GregL
Posts: 97
Joined: Tue May 16, 2017 8:44 pm

Re: What is This?

Post by GregL »

Authenticity is not an issue for me but thank you for the links.

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Haz567
Posts: 180
Joined: Thu Mar 02, 2017 1:40 pm
Location: Southeast Kentucky

Re: What is This?

Post by Haz567 »

Nice looking 312!

Although I don't have a care to look at handy I think No. 2 also serves as a connection point for the power steering pump bracket if the car is equipped.

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paul2748
Posts: 1418
Joined: Sun Mar 15, 2009 12:23 am
Location: Northeastern New Jersey

Re: What is This?

Post by paul2748 »

Yes
Hazard 56 T Bird wrote:
Mon Sep 16, 2019 9:40 pm
Nice looking 312!

Although I don't have a care to look at handy I think No. 2 also serves as a connection point for the power steering pump bracket if the car is equipped.
1956 Fiesta Red 312
1954 Ford Victoria 312
1948 Ford Convertible Street Rod 302

Daddio
Posts: 38
Joined: Mon Jul 01, 2019 12:51 pm

Re: What is This?

Post by Daddio »

There's a couple previous posts on this subject.
I've replaced my valve twice. The one that was on the car when I bought it (30 years ago) looked original and lasted 10 - 12 years before leaking. Wanting to look as original as possible I replaced it with an NOS, but it started to leak after only a few years.
So I installed an aftermarket unit from a TBird supplied and, so far, it's lasted twice as long as the NOS .. touch wood.
Since the aftermarket look nearly identical to the original, I would suggest staying away from NOS. The rubber seal is what leaks and an NOS unit contains old, dry rubber seal.
Mike
1956 TBird
1959 Cadillac Biarritz
Massey Ferguson 165
2005 Lincoln LS
2014 GMC Yukon

GregL
Posts: 97
Joined: Tue May 16, 2017 8:44 pm

Re: What is This?

Post by GregL »

I think that is sound advice Mike. Thank you.

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