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JED
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Help with Break lines from Reservoir to Master Cylinder
Hi-
I am the middle to re-freashing my 74 targa breaks. I purchased a new master cylinder to due high break fluild consumption and a confirmed leak in the pedal area. I did research on the forum and found my leaks may also be from the grommets /lines from reservoir to the MC. Seems like the most of the threads indicated that it was far easier to attach the grommet and lines to the MC out of the car and then thread them up to the reservoir. My search did not yield any step by step photos clearly demonstrating this process. In addition, each replacement line was around $180.00. I am aware that our 911's part are sold at premium prices but I was still shocked that two 3 foot lines, that are not under pressure could be that expensive. Any thought or links to threads on this process would be greatly appreciated. There must be a less expensive way to re-fresh these lines. |
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The 9 Store
Join Date: Dec 2009
Location: Wilmington, DE
Posts: 5,317
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Call Pmb performance.
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All used parts sold as is. |
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Registered
Join Date: Jul 2005
Location: Atlanta
Posts: 1,241
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Save the old lines coming from the reservoir to the master. As for installing the new grommets. The procedure is to fully install the new grommets to the lines first, add a bit of brake fluid to the grommets, then work them into the hole. Start by angling and pushing one edge into the hole, then push the other side down (side still sticking out of the hole) with a screw driver edge and use the rest of the screwdriver to push into place. You should get a reasonably positive snap into place once fully in the mounting holes.
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No physical quantity completely explains its own existence |
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76 911S Targa
Join Date: Oct 2010
Location: Idaho
Posts: 1,150
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This is from an old post that I am reusing: I did this a few years ago. I can tell you that you need to remove everything in front of the pedals to do this properly. The lines come down from the reservoir and then across the top of the pedal compartment to the master cyliinder. That means the carpet and the floorboard underneath that is held on with a 6 mm bolt come out. Since you had leaks in the pedal area, you will need to clean and repaint the area to prevent rust where the brake fluid removed the paint. It seems like a pain but it is nice to have a repainted floorboard (yes, it is made of wood).
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76 911S, 2.7, Bursch Thermal Reactor Replacements, Smog Pump Removed, Magnecors, Silicone Valve Cover Gaskets, 11 Blade Fan, Carrera Oil Cooler, Turbo Tie Rods. |
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Registered
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Doan’t remove the feed lines. Push the feed lines into the MC before you bolt it in. That way you can wiggle the MC as you push the lines in, then bolt it up.
Rob |
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JED
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Thanks for the input
I have these questions. 1. If a leak is detected in the pedal area, what is the usually cause? Lines? MC? 2. Is it normal practice to re-place the feed lines? 3. Is it necessary to remove pedal assembly to accomplice the task? 4. Any photos of the grommets instal? |
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76 911S Targa
Join Date: Oct 2010
Location: Idaho
Posts: 1,150
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Leak in the pedal area is the master cylinder. Brake fluid leaks past the rubber seals and follows the shaft into the pedal compartment.
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76 911S, 2.7, Bursch Thermal Reactor Replacements, Smog Pump Removed, Magnecors, Silicone Valve Cover Gaskets, 11 Blade Fan, Carrera Oil Cooler, Turbo Tie Rods. |
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