QuoteI ordered a MC from CJ Pony Parts with attached adjustable valve for mine in 1 1/8" bore although they have a 1" bore similar combo as well. I like the bias adjustability since I have a mish-mash of parts ...

Thank you for not calling that a PROPORTIONING VALVE. It is not. It is an adjustable bias valve that is meant for use on race cars and is not DOT approved for the a street car (you will usually see this DISCLAIMER on a site hidden).

You have (had) the perfect setup (IMO) using the LINC FRT disc and present rear drum brakes using the origional OEM LINC MC. Why the aftermarket unit?

The following best sums it up IMO -

QuoteThe Internet is a wonderful source of information; unfortunately, in many cases the authors credentials are unknown. The same can be said of Internet parts suppliers? are the parts offered for racing purposes or are they for street applications? If you are driving a car with a modified braking system, will it perform under a panic stop in poor traction situations (rain)? Adjustable proportioning valves are readily available. This is installed on the rear brake circuit and the pressure is adjusted to attempt to balance the front to rear braking. If close attention was given to the description of the function of metering, proportion and check valves in a braking system it should be understood that randomly turning a dial to balance front to rear brake pressure is risky at bes

SOURCE - http://blog.macsautoparts.com/brake-plumbing/

Quote from: KULTULZ on 2021-01-04 18:57
Did your 59 METEOR (CA) come through originally with a six, FYB or FE?

It was a factory 332FE, FordOMatic, 2.91 rear axle car, with manual steering and brakes. I retained the original manual brake pedal, but I had always assumed that the same brake pedal would have been used with all the engine choices. Is that in correct? I also have a SSB adjustable brake valve on my car, but it is currently wide open, as there has been no lock up issues front to rear, so although it`s still plumbed into the rear brake line, it isn`t really doing anything.

Why not just use the Lincoln master cylinder and Lincoln combination valve?  Several reasons...

I was concerned that the limited pedal travel of the Swift Sure pedal arm might present a problem when combined with the greater pedal travel required using the smaller 1 inch bore Lincoln master, while all of the KH setups apparently used a 1 1/8" bore master. The Lincoln 1" master might work with the available KH type brake pedal travel, then again it also might not.

Since others have used a 1 1/8" dual mc on their KH power brake setup it appears to work for them no matter what front brakes they have. Also have not noticed anyone using anything smaller than the 1 1/8" bore mc on any KH power setup. Only on manual brakes is the 1 inch or 7/8 inch bore master being used as far as I know.

There is supposedly a metering valve in that assembly which nominally delays pressure to the front disk brakes and initializes the rear brakes first, just like with a combination valve.  At some unknown line pressure being reached in the rear brake line, the pressure overcomes the metering valve function and sends fluid to the front brakes.

We also do not know if the brake return spring resistance to the rear line pressure in the 71 Lincoln and the 57 Ford are the same  It is possible the larger brake assemblies in the Lincoln required stronger springs, but the Lincoln is gone so I can't check that.

But if that is the case, then that would seem to indicate that it is possible with less resistance in the 57 springs, the rear brakes could lock up prematurely IF the Lincoln brakes required more line pressure to overcome the metering valve. Either a factory combination valve or adjustable valve would resolve that.

The Lincoln rear drums were also a much larger swept area than the factory rear drums on the Ford too. IDK if those things combined (greater brake return spring force in the Lincoln and larger assembly/swept area) could induce any excess rear bias if used with a Lincoln combination valve. But, I think it is possible and it wouldn't hurt to be able to adjust that.

As far as safety warnings goes, that reminds me of a college class where there was a discussion of a company in Europe producing chain saws. They were to begin marketing these chain saws in America and discovered that with our sue-happy culture, they needed to put a warning in their product literature not to put your hand or any body part on the moving chain.

Either we are incredibly dumb compared to Europeans, or we have such a litigious environment that all manner of warnings must be expressed to limit lawsuits.  When the average auto owner today might be mystified if told to change a spark plug, I would put every kind of disclaimer and warning I could think of on products too. Brake components would certainly warrant that degree of caution, but I think I can handle adjusting the valve. My kids? Maybe one or two out of the four I would not be worried about doing the install, but I am not them.  Besides we will all be dead from Covid 19 or Covid 20 soon anyway, won't we? 

Quote from: 59meteor on 2021-01-05 09:08

It was a factory 332FE, FordOMatic, 2.91 rear axle car, with manual steering and brakes. I retained the original manual brake pedal, but I had always assumed that the same brake pedal would have been used with all the engine choices. Is that in correct? I also have a SSB adjustable brake valve on my car, but it is currently wide open, as there has been no lock up issues front to rear, so although it`s still plumbed into the rear brake line, it isn`t really doing anything.

I was wondering as you said a 7/8" MC bore as where the SHOP MANUAL (57 and 58) state 1" MANUAL and 1 1/8" POWER. Both systems use the same pedal assy but the PB application mounts the pedal assy lower (more leverage?).

The 59 FORD lists three different MC and I was wondering if this was the case as the MPC (US) does not give bore size but only a PN. I do not have a 59 SHOP MANUAL so am just trying to learn here.

And yours being CAN, they are in a CANADIAN FORD MPC which of course I do not have.

THANX for the get back.

OH! Is yours a SINGLE RANGE FOM and not a DUAL RANGE COM?

Interesting stuff.

Quote from: brushwolf on 2021-01-05 11:27

As far as safety warnings goes, that reminds me of a college class where there was a discussion of a company in Europe producing chain saws. They were to begin marketing these chain saws in America and discovered that with our sue-happy culture, they needed to put a warning in their product literature not to put your hand or any body part on the moving chain.

Either we are incredibly dumb compared to Europeans, or we have such a litigious environment that all manner of warnings must be expressed to limit lawsuits.  When the average auto owner today might be mystified if told to change a spark plug, I would put every kind of disclaimer and warning I could think of on products too. Brake components would certainly warrant that degree of caution, but I think I can handle adjusting the valve. My kids? Maybe one or two out of the four I would not be worried about doing the install, but I am not them.  Besides we will all be dead from Covid 19 or Covid 20 soon anyway, won't we? 

Well, no. Vendors are selling things meant for track only to those who do not know the difference or do not care.

If you want to destroy your car or injure yourself, that is one thing and of course that is your choice. If you cause injury to another it is not your choice.

OK, I am out of here as I see where these discussions are going and I have my good clothes on.

Quote from: KULTULZ on 2021-01-05 13:50
Both systems use the same pedal assy but the PB application mounts the pedal assy lower (more leverage?).

The pedal assembly?s are different .
The PB assembly is two pieces and a way different shape than the manual pedal assembly.
Upper picture is of a power brake pedal
Lower picture is a manual brake pedal

Here are a couple of pics of the power brake pedal...

manual brake pedal

Quote from: dgasman on 2021-01-05 16:04

The pedal assembly?s are different .
The PB assembly is two pieces and a way different shape than the manual pedal assembly.

Look closely at the PARTS ILL you showed. The actual brake pedal is PN 2455. The bracket it attaches into is marked with a solid triangle and if you drop down to the key, indicates it is only serviced in the BOOSTER ASSY - PN 2005 Your photo(s) shows that bracket removed from the BOOSTER ASSY and still attached to the pedal arm.

The below ILL is from the 58 SHOP MANUAL -

You are correct, there are two different pedals.

Let me cipher on this and I will be back with an explanation and apology.

It seems there were some design changes over the 1957-1960 production run.

... I just cannot understand it. I thought I was wrong once but was mistaken ...

I have both a factory manual brake pedal assembly and a factory power brake pedal assembly and  after reading all of this discussion on pedal travel, effort etc. .......... I have a question.

I've set my Ranchero up to use a '03 Mustang HydroBoost and the '57 manual pedal. The front disc brakes are dual piston calipers from Drop M Stop. The rear discs are '01 Ford Explorer.

With this set up, should I use the manual pedal or the power brake pedal? What difference would the different pedals make?
Thanks
John

The manual pedal certainly has more travel available, probably more mechanical leverage also. But with hydroboost you may not need a lot of travel or leverage anyway...

I would have used the manual pedal as you did in any instance where you were NOT using the Kelsey Hays booster.  If there is an advantage to the funky power brake pedal, I don't know what it would be aside from fitting up with the stock booster...

I've used manual brake pedal, arm and hole on two hydraulic booster installations with great braking responses.

Quote from: KYBlueOval on 2021-01-06 06:28

I have both a factory manual brake pedal assembly and a factory power brake pedal assembly and  after reading all of this discussion on pedal travel, effort etc. .......... I have a question.

I've set my Ranchero up to use a '03 Mustang HydroBoost and the '57 manual pedal. The front disc brakes are dual piston calipers from Drop M Stop. The rear discs are '01 Ford Explorer.

With this set up, should I use the manual pedal or the power brake pedal? What difference would the different pedals make?

Thanks

John

What you are referring to is BRAKE PEDAL RATIO (GOOGLE). You need to know the ratio from the donor car as to proper ratio and application (desired final line pressure) (determined with gauge).

It would be helpful also to know kit caliper piston size and swept volume to compare with donor car caliper spec.