Brake fitting, master cyl to hose for rear...
 

Among other things, I'm putting hydraulic brakes in a '32. From what I see, all '39 to '48's have a short steel tube go from the master cylinder fitting to a bracket on the frame where it goes to a hose to the torque tube. On the '32, there doesn't seem to be a good place to put that bracket where the steel tube joins the hose. In fact, the best appearing place to attach the front end of the hose would be at the master cylinder. In fact, it would be nice if you could use a front wheel brake hose! Now, there are two problems. Number one is that the male thread on the front hose is 7/16-20, where it screws into the wheel cylinder and the female thread in the master cylinder fittings is 7/16-24. A hose will not screw into a fitting. Number two problem is that even if the threads matched, there's not a good surface to gasket against on the existing fittings.
The solution seems to be a new adapter fitting: 7/16-24 male thread with the end designed to seal at the bottom of the master cylinder fitting, 5/8 hex body and a 7/16-20 female thread at the other end. The larger hex size would allow a sutable gasketing surface.
Now, would others be interested in such a fitting? Would some one be interested in making it and selling it? Thanks for any comments.

Below is a mockup of what I'm proposing...

Re: Brake fitting, master cyl to hose for rear...
 

Try looking through this Site... http://www.smithfast.com/weatherhead1.htm

Re: Brake fitting, master cyl to hose for rear...
 

There are hoses available in different lingths that are 7/16 24 male on one end and 7/16-24 female on the other. These are made to be used with either a copper sealing washer or with 1/4 in. inverted flare fittings as your Ford brake lines and fittings are. Go to a good auto parts store and ask to see their Raybestos Catalog. I think there are other manufacturers that also list brake hoses. I do not know why Ford used 7/16- 20 threads on the front wheel cylinders and 7/16-24 on the rears except to make it harder to accidently install rear wheel cylinders on the front an vise-versa.

Also, if you contact Richard at The Early V-8 Garage, (626) 338-2282. He may have something in his stock that will work with your application. Their main focus is Hydraulic Brake Conversions for early Fords and they have all sorts of hoses. fittings and stuff plus a world of knowledge.

I hope this helps,

Chris

Re: Brake fitting, master cyl to hose for rear...
 

I've been hoping that Richard would chime in on this. Also, rear cylinders are 7/16-24 because they accept a tube and not a hose. The broader question would be why were the tube fittings a b------ thread size for 1/4" tubing and not the same like 3/16" tubing (3/8-24 thread for both male threads on hose and nuts on flared tubing.) Finally, there's no place for a gasket to seal on the master cylinder tee fitting.

Re: Brake fitting, master cyl to hose for rear...
 

"Chime" There is not a standard hose with 7/16-24 inverted flare male end, but I have seen them custom-made with a short length of tube at one end and the proper length hose with a female at the other end, and a standard flare and nut, which allows for installation. That would be the ideal thing to have as the rear hose. What I do is make a very short length of tube with nuts at both ends and attach that to the master cylinder fitting and the female of the standard 91A rear hose. I then provide a hole in my 32 handbrake kit bracket (which clamps onto the torque tube) to secure the other end of the hose, then run hard line from the hose to the rear T which is mounted in a "look-alike" rear T bracket, but which we make thinner so it CAN be installed where it was not meant to be. I could have custom hoses made as I described above, but it is one of those things that I have not got around to, and what I have been doing works good and I can make it myself. IF you were to use my handbrake kit, you would not need a bracket on the torque tube for the rear of the hose. For my 33-34 kit, I make a clamp-on bracket that installs on the torque tube and serves the same purpose. (The handbrake setup for my 33-34 kits is unlike the one for the 32, so requires a separate bracket.) This bracket will also fit a 32 torque tube and because it clamps on, no welding is involved... welding a bracket on is no big deal BUT if the torque tube is already painted or PC'd, not very convenient...

To make the short line mentioned above requires a particular double-flaring set that allows making that short of a line. After it is made, I bend it so it ends
up 90-degrees to facilitate connection to the hose. (How I bend it is a "trade
secret")

Because you have elected to use the master cylinder setup that you have, the MC is mounted further to the left than mine and so will require a longer rear hose. Mine is mounted between the battery and torque tube (do not have to move the battery) and the MC is close enough to use a standard hose...

Here is CA we have a company called "The Hose Man" who will make up whatever you need; must be a similar place where you are???

Re: Brake fitting, master cyl to hose for rear...
 

Thanks Richard- One facet of my plan is to allow use of a standard '39 to '48 front hose. That way, future maintenance would be simpler. Also, there's no such thing as a "hose man" here in NJ that I know of. Do you have an address? Finally, I'm starting on an AV8, using a '67 Mustang drum/drum master cylinder. The short bent length of tube sounds interesting for that construction.

Re: Brake fitting, master cyl to hose for rear...
 

"There is not a standard hose with 7/16-24 inverted flare male end..."

It has been brought to my attention today by my good friend... who knows just about everything (and does not like metric fasteners...) that hoses ARE available with a 7/16-24 inverted flare male end. Many years ago when I designed my systems for 32-33-34, I was looking for a relatively short hose that could reach from the hose bracket on the torque tube directly to the port on the master cylinder or to the port on the master cylinder fitting. I suspect that they were all too long, so I did what I did. Sometime tomorrow, hopefully, I will post some numbers and lengths so maybe one of them will be suitable? IF you are saying that you want to be able to use an original (7/16-20) hose and connect it to the fitting on the MC, you are going to have to make or have made a fitting with those threads, and you might be the "entire market" for such a part???

Re: Brake fitting, master cyl to hose for rear...
 

That's what I'm saying- last sentence of first post in the thread. Does it sound like a good idea?

Re: Brake fitting, master cyl to hose for rear...
 

Sounds like over-kill... but sometimes that is ok? If you are paying for the parts, you get to decide. I would use a 7/16-24 hose on which the inverted flair on the male end will seal in the MC fitting IF the available hoses are not
too long. Otherwise, would have a hose made up OR do what I did. Good luck!

Re: Brake fitting, master cyl to hose for rear...
 

Pete-

A good source for custom hoses is Brake Hoses Unlimited (Holland, MI). I have used them several times. Service is fast, reasonable and he uses only USA made parts! Phone 616-836-7885. You want to talk to Nick.

Tom