Speed Posted June 6, 2007 Share Posted June 6, 2007 Hi all; For those few EH owners,I thought I'd pass on some parts info. I just bought a master cylinder kit from CarQuest,part number M-6 (CarQuest part #),for $33.03,installed it today,and if I don't have to work I plan to install it tomorrow,as well as finishing installation of a HydraVac I pulled from my '60 GMC parts truck. I still need to get a fitting for the vacuum connection out of the intake manifold,a couple of brake lines,a Y fitting and some adapters since the uses 5/16" lines and GMC uses 1/4" . If it turns out I need to rebuild any wheel cylinders Dutch says he can get just the seals from a brake rebuilder in Reno for about 3 bucks a handful. I'm hoping to have 'er operable again in a couple of days or so. Speed Quote "Remember-ANY Gun Control is Unconstitutional!"<!--sizeo:3--><span style="font-size:12pt;line-height:100%"><!--/sizeo--><i><b>MACK-E Model Registry # 36</b></i><!--sizec--></span><!--/sizec--><a href="http://www.nvabatetravel.com/"target="_blank">http://www.nvabatetravel.com/</a> Link to comment https://www.bigmacktrucks.com/topic/2562-mack-hydraulic-brakes/ Share on other sites More sharing options...
POWERBRAKEBOB Posted July 13, 2007 Share Posted July 13, 2007 HI THERE! I'M NEW HERE. I WANTED TO MENTION MY COMPANY, POWER BRAKE SERVICE, HAS BEEN AROUND SINCE 1950, AND WE STILL HAVE THE PARTS AND THE KNOWLEDGE TO REBUILD ALL OF THE OLD HYDROVACS. WE ALSO SPECIALIZE IN RETROFITTING NWER BRAKE SYSTEMS, SUCH AS THE HYDROMAX, WHICH GIVES YOU A DUAL MASTER CYL. THEY HAVE EITHER 1.75" BORES, OR 2" MASTERS. IF YOU NEED YOUR HYDROVAC REBUILT, OR CHECK VALVES AND FITTINGS, WE PROBABLY HAVE THEM. OUR WEB IS "POWERBRAKESONLINE.COM" Quote Link to comment https://www.bigmacktrucks.com/topic/2562-mack-hydraulic-brakes/#findComment-12972 Share on other sites More sharing options...
Speed Posted July 14, 2007 Author Share Posted July 14, 2007 HI THERE! I'M NEW HERE. I WANTED TO MENTION MY COMPANY, POWER BRAKE SERVICE, HAS BEEN AROUND SINCE 1950, AND WE STILL HAVE THE PARTS AND THE KNOWLEDGE TO REBUILD ALL OF THE OLD HYDROVACS. WE ALSO SPECIALIZE IN RETROFITTING NWER BRAKE SYSTEMS, SUCH AS THE HYDROMAX, WHICH GIVES YOU A DUAL MASTER CYL. THEY HAVE EITHER 1.75" BORES, OR 2" MASTERS. IF YOU NEED YOUR HYDROVAC REBUILT, OR CHECK VALVES AND FITTINGS, WE PROBABLY HAVE THEM. OUR WEB IS "POWERBRAKESONLINE.COM" Thanks Bob; I finally got the brakes "nearly" operable on my EH. At least they work well enough to drive the truck when necessary. I kitted the master cylinder and installed a HydraVac off my '60 GMC 370 (approx. 5 ton) parts truck. I ran new steel lines to it,and made nice bends to make it look good. Bled the system and when I fired the truck up had excellent pedal but NO brakes. Reversed the lines to the HydraVac (Had to use different lines due to the different lengths of them) and re-bled the system and got very good braking except for an air pocket in the line back to the master cylinder. This happened because the only line I had the right diameter was too long and required several "shortening bends" to fit,and it "retains" air. not worried,I'll buy the right size lines for it when I work on it next. I also have 2 drums to pull,as I have 2 brakes that lock very easily and 2 that work fine now. Sheesh-it never ends... Speed Quote "Remember-ANY Gun Control is Unconstitutional!"<!--sizeo:3--><span style="font-size:12pt;line-height:100%"><!--/sizeo--><i><b>MACK-E Model Registry # 36</b></i><!--sizec--></span><!--/sizec--><a href="http://www.nvabatetravel.com/"target="_blank">http://www.nvabatetravel.com/</a> Link to comment https://www.bigmacktrucks.com/topic/2562-mack-hydraulic-brakes/#findComment-12982 Share on other sites More sharing options...
jim clasics Posted May 1, 2008 Share Posted May 1, 2008 Does anyone know if new shoes and wheel cylinder kits are available for my 1957 B85F Mack . new to this forum so any help would be aprciated . Thanks, Jim c.c.trucking@sympatico.ca Quote Link to comment https://www.bigmacktrucks.com/topic/2562-mack-hydraulic-brakes/#findComment-18712 Share on other sites More sharing options...
Firemack Posted May 2, 2008 Share Posted May 2, 2008 Does anyone know if new shoes and wheel cylinder kits are available for my 1957 B85F Mack . new to this forum so any help would be aprciated . Thanks, Jim c.c.trucking@sympatico.caJimSend the original brake shoes and wheel cylinders to White Post Restorations http://www.whitepost.com/ They specialize in rebuilding brake systems and guarantee them for as long as you own the vehicle. They rebuilt my B75F brake shoes, wheel cylinders and master cylinder, they do excellent work. Turnaround was one day. Firemack Quote Link to comment https://www.bigmacktrucks.com/topic/2562-mack-hydraulic-brakes/#findComment-18731 Share on other sites More sharing options...
jim clasics Posted May 3, 2008 Share Posted May 3, 2008 JimSend the original brake shoes and wheel cylinders to White Post Restorations http://www.whitepost.com/ They specialize in rebuilding brake systems and guarantee them for as long as you own the vehicle. They rebuilt my B75F brake shoes, wheel cylinders and master cylinder, they do excellent work. Turnaround was one day. FiremackThanks , Realy appreciate the info. Will check them out. Jim. Quote Link to comment https://www.bigmacktrucks.com/topic/2562-mack-hydraulic-brakes/#findComment-18748 Share on other sites More sharing options...
Speed Posted May 16, 2008 Author Share Posted May 16, 2008 Thanks , Realy appreciate the info. Will check them out. Jim. firemack; If you don't mind me asking,what did it cost you to do the brakes on your ? I'm probably going to end up doing something like that,and wonder if it'll take a little saving or a liquidation of assets to pay for it. Speed Quote "Remember-ANY Gun Control is Unconstitutional!"<!--sizeo:3--><span style="font-size:12pt;line-height:100%"><!--/sizeo--><i><b>MACK-E Model Registry # 36</b></i><!--sizec--></span><!--/sizec--><a href="http://www.nvabatetravel.com/"target="_blank">http://www.nvabatetravel.com/</a> Link to comment https://www.bigmacktrucks.com/topic/2562-mack-hydraulic-brakes/#findComment-19040 Share on other sites More sharing options...
Firemack Posted May 18, 2008 Share Posted May 18, 2008 Speed,I had the shoes relined- I think it cost about $80- it was about 5 years ago so may be a little more, I used Transaxle for the reline. They are national so should have shops near you. If not I used the shop in Bridgeport PA- just so you can check prices- and you may find some one local to you that can reline them. As for the wheel cylinders- they are either $50 a piece rebuilt or $80 if they are larger- on the B model they were $80 each. The Master was $150. I was going to buy a new one but the warranty is only 1 year at Napa- for about the same price I sent it to White Post and now it is guaranteed for life- they use brass sleeves so they will never rust and wear out the rubber parts. You probably can't buy new wheel cylinders for the E model- so this is the easiset way to get them back in safe operation. Firemack Quote Link to comment https://www.bigmacktrucks.com/topic/2562-mack-hydraulic-brakes/#findComment-19087 Share on other sites More sharing options...
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