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Registered
Join Date: Oct 2008
Posts: 8
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Please Help Me Out With This
I posted previvously about inop brake lights. I have looked at the master cylinder and I see only one (are there two?) switch mounted on it. I assume this is the offending unit. Someone has said that it could be replaced without removing the booster and master cylinder. It seems to me that there is just no clearance to work...hell I'm not sure I caneven pull the wire connector within the limited space. What am I missing? Can a considerable amount of brake fluid be expected to leak once the switch is removed. I'm guessing I will need to bleed the brakes too.
Thanks for your sagely advise, Swen |
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10-06-2008, 03:45 PM
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Member 911 Anonymous
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What Year is your baby?
I assume pre-84 or older? I believe you have fresh air vent hoses in the way. You need to remove it out of the way then use a deep socket to remove the BLS (Brake Light Switch) Take pic and post. BTW, Welcome Aboard!
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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10-06-2008, 03:55 PM
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Registered
Join Date: Oct 2008
Posts: 8
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Car is an '82 SC. The switch is mounted on the right side of the master cylinder.
Swen |
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10-06-2008, 04:00 PM
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Registered
Join Date: Oct 2003
Location: Michigan
Posts: 14,093
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If you hold the brake pedal down BEFORE removing the switch and WHILE you replace it, you will lose little fluid and will not have to bleed again. I had my wife help me and it took less than a half an hour.
IMPORTANT!!!!!!!!: DO NOT let the brake pedal return to it's resting position while the switch is out.
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1981 911SC ROW SOLD - JULY 2015 Pacific Blue Wayne |
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10-06-2008, 04:07 PM
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Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,424
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remove the big side to side cardboard cover and the plastic heat hose above the master cylinder for clearance.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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10-06-2008, 04:34 PM
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Virginia Rocks!
Join Date: Oct 2003
Location: Just outside the beltway
Posts: 8,497
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This job is a ***** and it was stuck in there pretty good on my (nice condition) 83. I used a deep drive 24mm socket to get it loose. IIRC I couldn't get the wrench on all the way...what a PITA.
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Rosewood 1983 911 SC Targa | Black 1990 944 S2 | White 1980 BMW R65 | Past: Crystal 1986 944 na Guards Red is for the Unoriginal
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10-06-2008, 05:17 PM
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Registered
Join Date: Oct 2003
Location: Michigan
Posts: 14,093
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crows feet wrenches come in REAL handy for this job.
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1981 911SC ROW SOLD - JULY 2015 Pacific Blue Wayne |
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10-06-2008, 05:27 PM
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Marble Grey
