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Brake rebuild
I recently bought my first 911, a '71 911 E. The 2 of the brake calipers were frozen, so I am going to rebuild all 4. I purchased the rebuild kits for the 'M' brakes. When I took off the front brakes, they look like they are the 'S' type brakes, with the cross over hard line.
Are any of the 'M' parts that I bought for the rebuild usable: brake pads, retaining hardware, bleader valves, rebuild kits? When I rebuiild the brake, do I also disassemble the cover attached with the 4 allen head bolts? Any advice would be greatly appreciated. Link to the car below: |
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07-26-2004, 06:42 PM
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Join Date: Dec 1999
Location: TX USA
Posts: 9,804
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Kolies,
No, the 'M' front caliper kits, pads, bleeders, or hardware won't work on the 'S' calipers! The cover with the four Allen bolt doesn't come off during the rebuild! Be sure to get a set of metric flare nut wrenches before attempting to remove the calipers or hard lines! I suggest replacing the rubber flex lines at the same time as the rebuild.
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' |
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07-26-2004, 10:01 PM
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Early-S-Man,
Thanks for the reply. I have a set of flare wrenches that I bought, but of coarse there wasn't an 11mm. I am having a tough time geting the hoses, hard and soft, loosened. I already also bought a set of stainless steel braided lines to replace the original rubber ones. I already install the new rear lines. I was looking for the hardware set to install the pads into the calipers, but there were only sets for 'M' and 'A' calipers. Karsten |
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07-27-2004, 05:09 PM
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Join Date: Dec 1999
Location: TX USA
Posts: 9,804
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Karsten,
Sears has a Craftsman 11 mm flare nut wrench. Try spraying 9% pickling vinegar on the corroded fitiings ... multiple applications over a period of hours ... wiped off with an 'acid brush' before appying more. Take your time ... mangled fittings are not fun to deal with! Brake line corrosion is a major problem on our older cars ... anti-sieze compound on the fittings helps in the future! Your old hardware for the 'S' calipers can be cleaned up and reused. Scotchbrite, Zud kitchen cleaner, and elbow grease ...
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' |
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07-27-2004, 05:23 PM
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Join Date: Jun 2003
Location: NC
Posts: 746
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Sweet! A thread that I actually know something about! I did a brake rebuild first thing after getting my 70 E! Go ahead and rebuild the backs too. Once you get the hang of blowing the pistons out doing all 4 isn't much more work. Getting the dust boots in on the fronts was the hardest part. Be prepared to rip one, I ripped 2...
Sears had all the flair nut wrenchs I needed... Britt |
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07-27-2004, 09:09 PM
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Thanks for the feed back. I never thought of using vinegar to losen the corroded fitting. A friend of mine told me about PB Blaster, which is supposed to work well for coroded pieces. I will try the vinegar. Can you use anti sieze on all of the threads on the brakes?
Britt, it looks like your car is in about the same condition as mine. Looks like you've done a decent amount of work on it. I don't think that I have electrical problems though. I did notice that when I put on the highbeams on, one side gets dimmer than the other. Need to figure that one out yet. Karsten |
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07-29-2004, 01:39 PM
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