[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index] Re: BBQ
Question: 2) What is US 1116?? I'm assuming that it is either a device which pressurizes the brake system via pressurizing the master cylinder OR a vacuum pump which attaches to each bleeder screw... Reply: Uncertain; my Zelenda tool catalog is at work; will check it tomorrow. I suspect it is a pressure bleed system Question; 3) How well do these "one-person bleeder systems" work?? Just purchased one, essentially a hand-held vacuum pump, and it seems like it will be easy to use. Reply: Good luck; I gave up on them after 1-2 bleedings on my 911 (which I am in the habit of bleeding brakes several times per year in preparation for Porsche Club track events). All I got was blisters in the palm of my hand from pumping, pedal never was as firm as I like (and got via pressure bleeding). What I am using now is a homebult pressure bleed system, made up from a spare master cylinder cap with a hole cut in the center to which I have mounted a screw-in tire valve with no core. To this I attach a hose (with a clamp-on air connection like on a tire pump) from an air tank pressurized to approx. 20 psi. Fill the master cylinder to the top with fluid, attach the cap/tire valve, run a tube from brake bleeder screw into small clear bottle and submerge tube end, open bleeder screw, then connect air hose to tank. When fluid comes out clear, close the bleed screw. Makes quick work of bleeding brakes; just monitor the master cylindre reservoir level carefully. Question: 4) How much of a PITA is this to do; i.e., should I purchase a 6 or 12 pack of Beck's Dark along with the DOT 4?? Reply: It's easily no more than a 2-3 can job with the above; with the vacuum pump, I would call it a six-pack at least plus a box of Band-aids. Ray Calvo (porsray@aol.com) 1990 Coupe Quattro 1995 Porsche 993
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