Newer Style Master Cylinder Swap

[Frogger2662]

If you could that would be great. No hurry though. I would like to do this swap with minimium modifications.
I would still keep my original proportioning valve?

[85lebaront2]

I believe, but would have to do some digging. I used the booster from the 1990 parts truck and ordered a master cylinder for one with the later speed control as I needed the port for my trailer brake controller (yes, I still have a nice hydraulically operated brake controller). I had to use the front port as the residual pressure valve would keep my brakes applied. Since I was also planning on using the electronic cruise control anyway, I needed the extra port.

[Machspeed]

I received my new master cylinder today. This is a Motorcraft unit, item# BRM63. Note that it does come with the residual pressure relief valve. I was a bit concerned about that, as Corey warned me that most do not come with it and the valve is $60 by itself.

I'll be pulling my master cylinder and the booster this weekend for clean up and assembly. Will keep you gents advised on how it all went.

[Rembrant]

Cool stuff John! Can't wait to see how you like it!

[Machspeed]

Appreciated your input on this subject, Corey.  

[grumpin]

Cool! I’m interested in the outcome.

[Gary Lewis]

Excellent!  Should be an easy swap.  And, if you had my setup, you could pressure-bleed the system with air pressure.  

[ArdWrknTrk]

Looking good!

John, did you order directly from Ford?
What are the two marks on the rear of the reservoir?

[Machspeed]

ArdWrknTrk wrote

Looking good!

John, did you order directly from Ford?
What are the two marks on the rear of the reservoir?

No Jim, ordered it off of Amazon, as I had some other things I needed. As to the two black marks, don't have clue. Frankly, was not happy to see them on there too! I'll be attempting to remove them before installation.  

[Machspeed]

Test fitted the line fittings today to confirm that they were the correct threads. They are! Also noted that I have enough brake line such that the required location change will not be an issue. I think I can put this sucker in and make it look factory!



 

[Gary Lewis]

Yippee!  You are now in the same boat as I - you'll need to keep a list of all the "upgrades" so when someone has to go to the part store they can get the right part.  

[Rembrant]

Cool. It's a very worthwhile swap in my opinion.

[ArdWrknTrk]

Glad it's worked out for you, John!  

[Machspeed]

Replaced both the brake booster and upgraded the master cylinder. With my factory lines, it was a direct bolt on with absolutely no modifications required. Only change I had to make was a small adjustment to the booster rod which is very important! I'll be doing a full right up on it soon.

Didn't like the nasty looking booster so pulled it and attempted to clean it up and repaint. It was badly pitted and I struggled to remove the old paint. I also think it was a source for a vacuum leak so I decided to replace it too. But, the paint on the new booster was garbage so I prepped it and sprayed it with two coats of my favorite epoxy. I still need to bleed the system, but that won't happen until I get a few other things done.

[Gary Lewis]

But bleeding will be easy!

On the rod, did you read the writeup on Documentation/Driveline/Brakes and then the Master Cyls & Booster tab and then the Push Rod Adjustment tab?  That adjustment is critical.

[Machspeed]

Gary Lewis wrote

But bleeding will be easy!

On the rod, did you read the writeup on Documentation/Driveline/Brakes and then the Master Cyls & Booster tab and then the Push Rod Adjustment tab?  That adjustment is critical.

Yes, watched a couple videos too!

[Rembrant]

I had to adjust the rod out on mine a little bit as well when I installed the aluminum master.

[kramttocs]

Looks great!
What is that thing tucked behind the speed control unit?

[ArdWrknTrk]

Bbbbbbuuut!                                            the orange can of death.  😲

[ArdWrknTrk]