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Board index » All Posts (AndrewM)




56 Ultramatic
#1
Quite a regular
Quite a regular

Andrew M
My 56 400 has been converted from a push button to column shift. The transmission leaks like a sieve out of the torque converter from what I can tell when it is on the lift. Wondering if it is a seal or I have also read in another thread about bolts getting loose and causing it to leak.

Link to thread I'm referring to: Torque Converter Leak

Also when I shift the car the linkage seems to have something loose or wrong with it. When I go from park to reverse, it works fine, but if I go from reverse to a forward gear and back to reverse, it will not work. When I go from reverse gear to a forward gear, it goes up a lot on the dash indicator before it reaches a gear. I don't really know how to describe it, but something seems loose. Wondering if anyone has any ideas to these problems.

Posted on: 8/6 22:07
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Reverse Lights
#2
Quite a regular
Quite a regular

Andrew M
The back up lights on my 56 400 have never worked since I've owned it. It doesn't get any power to the lights when in reverse. The car has been converted from a push button to a column shift. Wondering if this might have anything to do with it. Does anyone have any ideas? I don't really care if they work, but since it has them I would like to try to find why they don't work.

Posted on: 8/4 21:03
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Re: Wanted: 1956 Packard Dealer paint & upholstery book
#3
Quite a regular
Quite a regular

Andrew M
Bump

Posted on: 7/19 19:57
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Wanted: 1956 Packard Dealer paint & upholstery book
#4
Quite a regular
Quite a regular

Andrew M
I'm looking for a 1956 Packard Dealer paint & upholstery book. I saw a couple on ebay. One was in pretty rough shape. I was wondering if anyone might have one they would like to sell? Doesn't have to be perfect at all, but would like one that isn't coming apart.


Picture of one on this website that someone had last year for reference:

Resized Image

Posted on: 7/14 21:52
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Re: 1956 Packard Patrician from Bring A Trailer
#5
Quite a regular
Quite a regular

Andrew M
Can you take some more pictures of the brake pedal setup from under the dash? I'm curious as to how it is mounted as I am looking to do something similar to my 56.

Posted on: 7/13 19:59
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Re: Treadle Vac Conversion
#6
Quite a regular
Quite a regular

Andrew M
Quote:

CarFreak wrote:
Andrew, How goes your search for dual chamber master cylinder?


Haven't found any more options yet.

Posted on: 4/25 21:08
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Re: Treadle Vac Conversion
#7
Quite a regular
Quite a regular

Andrew M
Here are two master cylinders with 5/8" bore size according to Summit's website. They don't give any information about the stroke though.

My biggest concern with the way that ABS Power Brake makes their system is the fact that the brake pedal looks low to the floor when compared with the original brake pedal in relative location to the gas pedal. Craig's pedal was similar to how ABS does theirs, however, I haven't heard much feedback regarding this conversion that others have similarly done. Blocking off the air vent and putting it on the firewall is not really a good option for me since I live in a hot environment in the summer, unless I put aftermarket air on the car.

ABS mentioned that they were measuring the pedal ratio from the pivot point on the pedal to the center of the pad as well as where the bolt is through the pedal arm from the booster to the pivot point.


Links to 5/8 Master Cylinders:

https://www.summitracing.com/parts/ceb-130-45402

https://www.summitracing.com/parts/ado-18m1192

Posted on: 2/5 23:25
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Re: Treadle Vac Conversion
#8
Quite a regular
Quite a regular

Andrew M
Quote:

JeromeSolberg wrote:
That's an interesting find! It has a chance of working. The important thing (as noted by HH56 below) is what is the stroke? Might not know until you get one.

Question: The specs list two piston diameters 0.625 and 0.875. I don't quite know what that means, but that could be some kind of inner proportioning valve. Also, the specs could be inaccurate.

In a standard dual master cylinder, the primary piston pushes on the fluid only, and the fluid itself is what pushes on the second piston, unless there is a failure in the primary circuit.

How Stuff Works - Dual Master Cylinder

If it's anything like a standard-design dual master cylinder, the important spec is the diameter of the primary piston. If that's 0.625", then well worth a try. If it's 0.875", might not be. Also have to find a booster less than 7" diameter that would bolt up.

If you want to go ahead and try the 740 Volvo Cylinder, I would be willing to ship you my 7" Ford Courier Brake Booster, which I know fits in there on a 1953 and presumably also then a 1955/56, on the condition that if everything works well you would ship it back.

Those Ford Courier Brake Boosters are still somewhat available. What I saw for the Volvo 740 was 8" diameter, which wouldn't fit I am pretty sure.

1981/82 Ford Courier 7" Brake Booster #53-5211 (Autozone)


I called the company and found out that the initial rear of the master would be 5/8 and the front would be 7/8. They said it didn’t matter if the front or rear was attached to the 5/8, but one would be attached to the 7/8 bore. In other words, the 5/8 comes first before the 7/8 from what I understood.


Quote:

HH56 wrote:
Here are a couple of shots in mockup and in the car. As I mentioned, still a work in progress.


Is your master cylinder and booster in the stock location? Your set up looks nice.

Posted on: 2/3 14:36
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Re: Treadle Vac Conversion
#9
Quite a regular
Quite a regular

Andrew M
Thanks for the links. Here is another 5/8 bore dual master that is originally for a 1980’s Volvo. It is designed to be used with a booster. Would this be any better of an option? I couldn’t find what the stroke is on this one compared to the Treadle-Vac.


Link to Master Cylinder:

https://www.stockwiseauto.com/dorman-m39641-brake-master-cylinder?fit_id=6059&Year=1987&Make=Volvo&Model=740&gsID=pxf1974760f6059&gclid=EAIaIQobChMIzvyXvPHi9QIVj67ICh1Wlg2DEAQYAiABEgKylvD_BwE

Posted on: 2/3 1:24
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Re: Treadle Vac Conversion
#10
Quite a regular
Quite a regular

Andrew M
Quote:

JeromeSolberg wrote:

That way you can compare to what you would get with the original setup with an approximately 5/8" master cylinder diameter and a 1:1 pedal ratio.

Note - I have never measured the actual diameter of the T.V. piston (really a rod displacing fluid) myself, I have seen it as either 0.655 or 0.625 or even 0.62.

So for:

D = 5/8 and a P.R.=1, you have

Pressure/pound of foot force ~ 3.25

Hope this helps!



I spoke with the company and they think that it is a 15/16" bore master cylinder . He said that he would check on the pedal ratio and I will call back tomorrow. He thinks it is a 4:1, but I personally don't see how. I think a 3:1 would be pushing it looking at the picture.

Another option I thought of would be to use a 5/8 dual master cylinder with a remote mounted booster. I found a dual 5/8 master cylinder that looks to use one master cylinder for the front brakes and one for the rear. I also saw a regular dual remote master cylinder that is also a 5/8 bore. Would either of these work with the pedal in the factory location since the bore is similar to the Treadle-Vac? I would also add a booster to the system, but I want to be able to stop without it.

Links to 5/8 bore dual master cylinders:

Dual Master Cylinder Kit, 5/8″ bore

Tandem Master Cylinder 5/8" Bore

Posted on: 2/2 22:55
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