39-40 hot water heater

[37 Coupe]

One thing I never understood about the difficulty of finding correct thermostats at Napa or other parts stores.What is wrong with buying the ones made back in the day that worked? If you are not in a hurry or plan ahead these are on Ebay almost all of the time,NOS or NOSR in the box made in the USA. Shouldn't they fit without all the hassle of the new China ones? This is what I have used when I do use thermostats. Search for Ford Flathead thermostats on Ebay but have seen also all the time at car parts auctions I frequent.

[JSeery]

No a good idea in this case. They are no longer used for a reason. They have a bad failure mod!

There are other thermostats available. You can also use a sleeve to retain them.

[petehoovie]

This is the hook-up in my '37....

[Kube]

Originally Posted by 30-9

Thanks Kube will look online - carpenters/c&g/drake

They (correct fitting) are not available as new replacements. You can use the new ones with a fairly simple modification. JSeery posted a link that shows how to do it.
Or, as I prefer to do - buy NOS or NORS. they are readily available.

[37 Coupe]

Originally Posted by JSeery

No a good idea in this case. They are no longer used for a reason. They have a bad failure mod!

There are other thermostats available. You can also use a sleeve to retain them.

A bad failure mod?

[JSeery]

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I don't remember the details on them at the moment and I'm painting. I will have to do a search on it and post later.

[37 Coupe]

I have had NOS Genuine Ford ones fail shut but I had one do the same on a new Jeep I had. I just figured they (NOS)would still be better than China ones. If a new one is out there that fails open and fits a 59AB I am interested.

[Kube]

Wow! What a diverse number of opinions on the original post in regard to how to properly attach the heater hoses.
Per Ford's instructions, 1939 - 1940 FORD hot water heater: The lower nipple of the heater core connects to to the valve on the cylinder head.
A little actual research goes a long way...

[Kube]

Originally Posted by big job

Old golden rule; bottom to top or top to bottom, which means bottom is water pump
that goes to top of heater and bottom of heater goes the top (head) ....

Bingo! We have a winner! Great and ACCURATE advice...

[37 Coupe]

I thought I explained pretty good on post #24 a week or so ago.

[petehoovie]

Originally Posted by 37 Coupe

I thought I explained pretty good on post #24 a week or so ago.

Yes, you did....

[Kube]

Originally Posted by 37 Coupe

I thought I explained pretty good on post #24 a week or so ago.

You did and in fact were one of the few that did and did so correctly. I only brought this back up as I was asked to.