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bbrock |
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914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains ![]() ![]() |
I just finished rebuilding my brake regulator with the PMB DIY rebuild kit and it looks like new. Only thing left is to set the switch to 525 psi. I'm guessing I could send it to PMB to have them set it, but wondering if this could be done locally at a brake shop. Anyone know?
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Superhawk996 |
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#2
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914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 6,029 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch ![]() ![]() |
Thanks guys that is brilliant. Now you've got me going down the rabbit hole. The engineer in me always wants to know what is in the box.
Lots of great links for me to waste time on. (IMG:style_emoticons/default/biggrin.gif) I've always been curious and those are great pictures and the links to the theory of operation are superb. Bottom line w.r.t. the pressure difference between a /6 and the 4 cylinder is likely related to: 1) the six has a bit more weight on rear and therefore can take more pressure all other things held constant. 2) The six had different rear calipers. I'm not up to speed on all the details but I'm sure piston size, and effective radius (off the pad/rotor interface) will be slightly different. One last thought for the morning -- don't cheap out for the sake of $30 shipping here or there. You've put endless hours into your restoration. I've spun 914's more times than I care to count. They can spin very quickly especially if doing a lift throttle while braking mid corner. Don't make it worse by getting bias wrong. Don't risk getting your rear bias wrong by being cheap to the tune of $30 shipping (or even $200 or $500 for that matter). It is all trivial if you end up with a car on the side of a tree assuming we walk away! If you put in the time and effort to adjust it by the factory manual, you'll be fine. The broader point is keep the big picture in mind. There are some things to go cheap on (trust me I understand - I'm a cheap SOB) but brakes aren't one of them. |
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