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dual chamber chamber master cylinder conversion

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Author	Topic: dual chamber chamber master cylinder conversion
justgota65 Journeyman Posts: 84 From: Plainfield IL Registered: Nov 2001	posted 11-26-2001 05:19 PM Any here do a conversion from the fruit jar master cylinder to a dual chamber type on like a 65 or 66? Does anyone make a kit for such a conversion? Ron ------------------ Ron computer geek by day, Gear head by night Http://ron.oglesby.com/mustang.html IP: Logged
Moneymaker Administrator Posts: 27870 From: Lyons, IL, USA Registered: May 99	posted 11-26-2001 06:21 PM Ron, a late 80's Ranger, or 67-8 Mustang master cylinder will work well. You will need to get some lines and some adapter and junction fittings. We have a long detailed thread in our archives about the swap. ------------------ Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member NHRA and IHRA SS/LA National Record Holder '00 & '01 Fleet of FoMoCo products Moneymaker Bio US Class Nationals link IP: Logged
thedave66 Gearhead Posts: 244 From: mountain home, idaho Registered: Sep 2001	posted 11-26-2001 09:07 PM 1978 ford granada master cylinder bolts right up. All you need is a new proportioning valve. dave IP: Logged
justgota65 Journeyman Posts: 84 From: Plainfield IL Registered: Nov 2001	posted 11-26-2001 09:12 PM cool. then this goes on my "list of things to do..." Ron ------------------ Ron computer geek by day, Gear head by night Http://ron.oglesby.com/mustang.html IP: Logged
rockafellz Gearhead Posts: 1449 From: San Lorenzo, CA, USA Registered: Aug 2001	posted 11-27-2001 11:42 AM Hello All, My dad and I just did this conversion this past weekend. We used a 1967 Dual master cylinder and the pushrod that came with the Dual MC. We were so frustrated for about an hour because we couldn't figure out why there was no pressure building up (pedal to the floor). Just as we were about to pull out the new MC, we compared the new pushrod to the old pushrod. The older one was about 1 inch longer. We bolted that old pushrod in BINGO! Pedal was instantly back to normal. NOTE: use original pushrod! Also, regarding the lines. We disconnected the rear brake line from the distribution block, bolted a female to female adapter to the rear line, bent a new line to fit from there to the front of the MC. Plugged the open hole in the distribution block, ran a new line from the rear of the MC to the distribution block. NOTE: front lines go to the rear of the MC. Rear brake lines go to the front of the MC. Question for experienced brake mechanics: You guys mentioned previously to NOT use COPPER lines. Why? Also, we bought straight steel lines (with fittings already attached) and the fittings were in a gold like color. Those weren't copper fittings were it? No leaks so far. Sorry to add those questions to your post. But if someone answers it, at least you'll have a better knowledge. Regards, Erik IP: Logged
Scott302 Journeyman Posts: 40 From: Livonia, MI, USA Registered: Mar 2001	posted 11-27-2001 05:39 PM Copper lines cannot hold the pressure. They will either expand making the pedal mushy or just split. The fittings are cadmium plated steel. ------------------ Scott Halseth National Parts Depot 65 Convt 66 Coupe IP: Logged
Moneymaker Administrator Posts: 27870 From: Lyons, IL, USA Registered: May 99	posted 11-27-2001 06:56 PM Good tip from Scott of NPD. NEVER use copper line or compression unions for brake lines! ------------------ Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member NHRA and IHRA SS/LA National Record Holder '00 & '01 Fleet of FoMoCo products Moneymaker Bio US Class Nationals link IP: Logged
SteveLaRiviere Administrator Posts: 46243 From: Saco, Maine Registered: May 99	posted 11-27-2001 07:50 PM Copper for brake lines is illegal in all states that have safety inspections for the very reasons Scott cited. ------------------ '70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open '72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok '94 F-150 XL 5.8L/E4OD/3.55 Limited Slip '97 Probe GTS 2.5L DOHC My Photo Page Christmas shopping? Why not use the Mustangsandmore.com Bookstore? [This message has been edited by SteveLaRiviere (edited 11-27-2001).] IP: Logged

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