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brake wear sensors
Does anyone know if the wear sensors are closed loop or open loop. ie contact with rotor cuts wire (closed loop) or contact with rotor makes connection (open loop)
Mine are all torn up and I was wanting to make them work again.
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Lowell 1988 944 Red Project car (Now daily driver, Daughter's to school ride) 1983 944 Grey NEW Project car http://www.pelicanparts.com/gallery/tnporsche |
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05-31-2008, 08:07 PM
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Join Date: Feb 2005
Location: Portland, OR
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Why not just buy new ones? They're not very expensive.
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05-31-2008, 08:12 PM
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wires were cut before I got the car, I just wanted to know how they worked
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Lowell 1988 944 Red Project car (Now daily driver, Daughter's to school ride) 1983 944 Grey NEW Project car http://www.pelicanparts.com/gallery/tnporsche |
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05-31-2008, 08:34 PM
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Location: Portland, OR
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My schematics for the 944 show that the normal mode is contact closed then when the rotor hits the wear sensors, it opens the circuit.
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05-31-2008, 10:48 PM
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Quote:
As p-car owners, we check brakes very often and bleed brake system once a year. If you do that, there is no need for the brake wear sensors. Just cut them and tie the two wires together, solder, seal them with heat shrink or electrical tape secure with tie wraps and the warning light should go out.
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1993 964 C2 still makes me smile Retired and work as needed as a pain in the **s. Last edited by bazar01; 06-01-2008 at 09:23 AM.. |
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06-01-2008, 04:33 AM
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ITYM "open when they touch the rotor" that is how I understood they worked... or am I mistaken? It would make sense that they worked that way though, that would seem to be the easiest functionality to manufacture
nate
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1988 944... and a bunch of other cars 
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06-01-2008, 04:47 AM
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many folks here don't have any mechanical expertise and need to pay the fiddler for any work done. the germans/bmw's too, put the wear sensors on for a reason. to eliminate them and end up killing a rotor or two because someone doing their own work has recommended it, is extremely poor advice.
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87 951, K27/6, Almond Beige, 17" Turbotwist 87 944S, alpine white, 5sp died a violent death 84 944, silver/brown, auto, gone but not forgotten "may the force be with you" |
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06-01-2008, 09:00 AM
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bearone2, that is why I stressed if you do check your brakes yourself, you can do as I had suggested and save a bit. If not, then you have to restore the way it came from the factory. That simple and period! It's his choice.
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1993 964 C2 still makes me smile Retired and work as needed as a pain in the **s. |
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06-01-2008, 09:22 AM
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save a bit. they're about $12-15 a piece for some piece of mind.
many folks pull a tire off because they had a flat, not to jack up/drive on ramps, use a lift to ge the car in the air to pull a wheel to check brakes. yeah i know, use a mirror. just remember, a lot of folks have no mech aptitude. that's true if they're checked but many/most folks don't check them very often.
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87 951, K27/6, Almond Beige, 17" Turbotwist 87 944S, alpine white, 5sp died a violent death 84 944, silver/brown, auto, gone but not forgotten "may the force be with you" |
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06-01-2008, 09:41 AM
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1988 Porsche 944 
911
