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6/24/2013 9:10 PM  #1


ssbc power disc conversion

Just found this site today, wish I'd found it before I started the ssbc conversion. I have a 64.5 I bought in December, it was already partially restored but mechanically it needs a lot of work to make it safe starting with the brakes. I am having problems with the distribution block, mainly getting the lines loose without braking them. so far the only one I could get loose is the one that goes to the master cylinder. I'm sure they have never been removed before and they have been painted over on top of that. any suggestions would be greatly appreciated, thanks
 

 

6/25/2013 7:00 AM  #2


Re: ssbc power disc conversion

Welcome to our little bit of heaven. Tell us the particulars of your car.

As for your post, if the lines are original and never been off it will be very hard to save the lines.
If it were me I would cut the brake lines  and remove and replace them all with new stuff from front to rear, that includes the flex hoses as well.

The dist block can be put in a vice and you may have to use vise grips to get the fittings out.
You will need a quality set of flare fitting wrenches, not the Harbor Freight crap.
If your system is still stock there are prebent lines available at a reasonable cost.

Good luck and remember your brake system condition is paramount for longevity.

Last edited by Rudi (6/25/2013 7:03 AM)


Good work ain't cheap, Cheap work ain't good!   Simple Man
 

6/25/2013 8:05 AM  #3


Re: ssbc power disc conversion

Got two of the 4 lines off one of the bottom (rear line) had to be cut anyway the other goes to the right front. I'm going to replace them all. I am really concerned about the distribution block. I understand there is a piston with 3 o-rings that can get frozen, any idea on how to check it?

     Thread Starter
 

6/25/2013 8:26 AM  #4


Re: ssbc power disc conversion

If your car has the original single pot master - if there is only one line running from the master to the "block" - this is just a manifold and there are no moving parts.  If you SSBC kit contains a dual master cylinder then it is advisable to get a correct distribution block to support the use of the separate front/back braking.  There are many options/opinions on how to best do this.  What comes with your kit?  If it is a new single pot master then you can use what you have but this is not the safest braking setup as loss of a single seal at any wheel will cause complete loss of brakes.  Perhaps you can post a picture of what you have and what your new system includes so a more complete answer can be provided.  Maybe a link to your particular kit will help as well.

 

6/25/2013 9:34 AM  #5


Re: ssbc power disc conversion

the kit is an a120-20 power booster and dual master cylinder upgrade. the kit uses the old distribution block you just block off the rear line and route the front bowl through a proportioning valve to the drums in the rear.

     Thread Starter
 

6/25/2013 10:00 AM  #6


Re: ssbc power disc conversion

I think you should be good to go with that setup but you may want to consider ordering the 1970 (ish) style distribution block that Steve sells that has the moving piston.  Your current block does not have any internal parts - it is just a manifold.  The moving piston style will limit and/or prevent draining your master cylinder if you have a leak in the front or rear system and concentrates braking on the axle that is still functioning - some of these may have built-in proportioning so you would need to determine if the external proportioning valve is needed.  From posts I have read it is important not to have TWO proportioning systems in place.  The style that Steve sells is what was used in the production cars when the dual masters were introduced.  The moving piston style has its own issues when trying to bleed the brakes if the piston goes off center but may be more desireable from the safety side.  A simple centering plug can be purchased or made to simplify bleeding.  Send Steve a PM or an email if he does not comment on this thread.

 

6/25/2013 10:57 AM  #7


Re: ssbc power disc conversion

thanks I'll email him when I get back home
 

     Thread Starter
 

6/25/2013 12:47 PM  #8


Re: ssbc power disc conversion

Are you just doing discs up front? If so I think you should definitely consider an all in one factory style distribution valve like GaryPatrick is suggesting since it's a safe 'plug'n'play' way to go for a daily driver and you could optionally wire up a warning inidicator light with it. I'm pretty sure this type of valve would be just fine with discs in the rear too but I will defer to others on that. Here's some great info on distribution valves and proportioning valves from another recent post on the forum:

http://fyi.boardhost.com/viewtopic.php?pid=3322#p3322

If you want to use the adjustable proportioning valve for the rears you could either reuse the original distribution block, like Gary said there are no moving parts in it, and block off one port like you said or just replace it with a simple 'Tee' fitting. This is how I did mine recently - the 'Tee' isn't attached to the chassis just suspended by the lines. The proportioning valve knob is easy to reach in this location.




Making brake lines is kinda fun - especially if you're a masochist - if you decide to make your own try and get the existing passenger and rear lines off without bending 'em up too much as they make good templates for the new ones. This is a bit of a pain with the engine/driveline in the car but is doable with the right combo of patience and cussin'. Having the car off the ground on all four corners as high as you can safely get it helps.

Oh, wrestling with the lines is also a lot easier with the hood off too.

Last edited by McStang (6/25/2013 12:53 PM)


(Pinto!)
 

6/25/2013 1:11 PM  #9


Re: ssbc power disc conversion

Nice installation!  Interesting viewing perspective between the side-shot compared to the top view.  I am months away from plumbing mine up and have not decided which method I'll use yet but I'm leaning towards the full distribution block.

 

6/25/2013 1:52 PM  #10


Re: ssbc power disc conversion

I like the idea if the prop valve built into the dist block, that makes sense. unfortunately ssbc only has written instructions and if you're not a gear head hard to understand. the old saying " a picture is worth a thousand words" is so true. I found a video showing the disc and caliper installation that cleared up a lot of questions. they stopped at the point where the dist block and mc are plumbed so that is why I'm asking the questions here. I'll take some pix and try to post them, tried it on a different site and it was a real pain. hopefully have some pix soon.
 

     Thread Starter
 

6/25/2013 2:10 PM  #11


Re: ssbc power disc conversion

Not sure what the minimum number of posts is before you can post a pic but you can burn a few posts in this thread to reach the count if needed.  Check the links and there are some good threads in the old forum that are worth searching out.  The McStang install should match your setup as provided by SSBC pretty closely and there are several old posts that show and describe the full block install.

 

6/25/2013 2:56 PM  #12


Re: ssbc power disc conversion

This is the valve you really should use.  Do you have any idea how to adjust an adjustable proportioning valve?  Not many people do.


Money you enjoy wasting is NOT wasted money... unless your wife finds out.
 

6/25/2013 10:02 PM  #13


Re: ssbc power disc conversion

GPatrick wrote:

Nice installation!  Interesting viewing perspective between the side-shot compared to the top view.  I am months away from plumbing mine up and have not decided which method I'll use yet but I'm leaning towards the full distribution block.

Thanks Gary, the 3rd dimension is challenging & interesting. I'm pretty happy with how things turned out but so far the nicest lines I've seen are Ultrastang's - tried my best to get halfway there. I'm thinking I'll redo the passenger side front line when I replace the engine - that one I think is perfect from the shock tower and across the firewall until it gets to the last bend under the booster to the Tee, not so pleased with how that part turned out. I think I'll also end up redoing the line to the rears when the driveline is out. I eventually plan to track the car which is why I went with the adjustable valve and I'm thinking about moving the prop valve back to the tunnel when I swap drivelines and making it accessible from inside the car as it would be nice to be able to tweak bias 'on the fly'.


(Pinto!)
 

6/26/2013 12:05 AM  #14


Re: ssbc power disc conversion

MustangSteve wrote:

This is the valve you really should use.  Do you have any idea how to adjust an adjustable proportioning valve?  Not many people do.

Oleblue,

This is a '70s distribution valve with built-in proportioning that you should be able to get from a number of vendors such as CJ Pony Parts - http://www.cjponyparts.com/power-disc-brake-distribution-block-1970-1972/p/2B075F/

Sounds like the consensus is it's your best bet for trouble free - safe - operation. You'll have to make your own lines as stock replacements won't fit properly just as they wouldn't with the proportioning valve that SSBC provides. Craftsman has a good 'Made in the USA' double flaring tool for about $50 that you'll never use again but it's a worthwhile investment for the job. You can bend the lines around a large socket in a vise or buy a tubing bender - Google 'bending brake lines' and 'double flaring' for more info. You can use the following plumbing guide for the basics:


(Pinto!)
 

6/26/2013 5:46 AM  #15


Re: ssbc power disc conversion

MustangSteve sells that valve for less, and can actually offer you technical advice on how to install it, unlike others who just "sell" them.


Money you enjoy wasting is NOT wasted money... unless your wife finds out.
 

6/26/2013 10:43 AM  #16


Re: ssbc power disc conversion

Yes he does! Sorry for missing that. I've bought several things from MustangSteve and the quality & customer service have both been great. It's always nice to deal with a real person, especially one who knows this stuff so well.

Look about halfway down this page: http://www.mustangsteve.com/BRAKES.html

Part#  PV-70


(Pinto!)
 

6/26/2013 6:51 PM  #17


Re: ssbc power disc conversion

MustangSteve wrote:

MustangSteve sells that valve for less, and can actually offer you technical advice on how to install it, unlike others who just "sell" them.

Very true!
I just finished doing the front disc conversion. He was very helpful. I used the valve  MS sells.
So-sooo much easier to run brake lines if the engine is out! Can paint everything and actually get in the area to work.
I installed "home-made" studs in the firewall to hold the MC. MUCH easier than trying to hold MC and get bolts started!
I had a long conversation with the guys at work about should you/should you not... make "loops" in the brake lines after the MC. They said yes..I don't see how it would give a better pedal.BUTT..I made "loops" in my lines though. Used a big socket for some and a spray paint can for some. Worked pretty good. Especially the smaller lines.
My brake lines from the MC remind me a lot of spagetti! I just don't have the heart to pull them all out and re-do them. Maybe the next time the engine is out!!!
6s6


Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
 

6/26/2013 7:13 PM  #18


Re: ssbc power disc conversion

If you have drums all the way around, you would need a pressure differential valve, commonly called a distribution valve. --this style valve could also be used if you had 4-wheel disc brakes.

If you will be running discs front/drums rear, you would need a disc/drum combination valve.

 

6/27/2013 6:14 AM  #19


Re: ssbc power disc conversion

ultrastang wrote:

If you have drums all the way around, you would need a pressure differential valve, commonly called a distribution valve. --this style valve could also be used if you had 4-wheel disc brakes.

If you will be running discs front/drums rear, you would need a disc/drum combination valve.

 All Fords that came with 4-wheel discs came with a proportioning valve (combination valve).  Why would you not want to have one on a disc/disc car?  I still want my front brakes to hit before the rears do.


Money you enjoy wasting is NOT wasted money... unless your wife finds out.
 

6/27/2013 6:22 AM  #20


Re: ssbc power disc conversion

I have disk on the front, drums on the back

     Thread Starter
 

6/27/2013 9:56 AM  #21


Re: ssbc power disc conversion

oleblue91 wrote:

I have disk on the front, drums on the back

I think for peace of mind and safety's sake you should use the 70's style valve that Steve sells vs. the old block & separate proportioning valve that came with your SSBC kit. Properly setting up an adjustable proportioning valve can be tricky and you may not know if you've it got adjusted right until that one time that you really need to stop fast safely. If you don't want to make your own brakes lines - it can be satisfying but can also be a real pain in the keister - you can probably get pre-made lines for your car that will fit using the 70's style valve from a company like Classic Tube or Inline Tube:

http://www.classictube.com/index.php

http://www.inlinetube.com/

Just call them up and tell them exactly what you've got and I'm pretty sure they'll be able take care of your line needs. MustangSteve may be able to help you out in this regard as well. The difference between the old drums up front and some good discs is definitely worth all the trouble.


(Pinto!)
 

6/28/2013 6:15 AM  #22


Re: ssbc power disc conversion

I already bought the replacement lines they came in yesterday, now the problem, when I get the new dist block is going to be modifying them to make them fit. the lines from the mc won't be a problem, the problem  as I see it right now is going to be the left front and the rear. the right front should go right in. I'm  afraid the rear line is going to be way to short to reach the dist block. any suggestions? I tried to post a picture of the old block but it didn't come out. 

     Thread Starter
 

6/28/2013 6:16 AM  #23


Re: ssbc power disc conversion

that worked out better than I thought

     Thread Starter
 

6/28/2013 7:45 AM  #24


Re: ssbc power disc conversion

Maybe move the block closer to the rear line.


Money you enjoy wasting is NOT wasted money... unless your wife finds out.
 

6/28/2013 8:30 AM  #25


Re: ssbc power disc conversion

yea, i'm going to try to get all the lines lf, rf and rear connected before i mount it to the fender well. did you get my email about the distribution block? i'd like to go ahead and get it ordered so i can finish up the part of my journey. was under the car earlier and found a leak that wasn't there before. does it ever end?

     Thread Starter
 

Board footera


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