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Join Date: Dec 2000
Location: Winter Haven, FL usa
Posts: 922
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911 caliper rebuild-rear dustshield question
Thanks to this board I have successfully rebuilt the front calipers for my 85 911- it was actually easy. Thanks!! The rears were easy as well- until I tried to put the rear dustshields on. These are the ones that have the metal ring molded into the rubber, unlike the fronts where the ring was a separate piece. Alright - is there a trick trap door or something? These things are not going on- at least not in 1 piece. I have the pistons out about 1/4-1/2". The shields are the correct ones, ordered from the correct place- thanks Pelican. I searched the archives and see others have found this difficult as well- there is talk of using baby food lids, crow bars, dynamite, etc. Anybody have a "trick" that works??
Thanks again Gary ![]() |
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I had the same problem as you. My solution was to take a peice of pipe, 2" diameter I think - essentially just large enough so that the inside diameter of the thing cleared the caliper body that the molded ring fits over. I cut a 1" section of the pipe and polished it down and smoothed the edges so that it wouldn't cut the rubber.
I put the "ring" on top of the dust boot and aligned it carefully, put a wood shim across the top, and used a c-clamp to mush the ring down - it popped right on. I still have that ring. ![]() Brakes are like new, now. I just need new rotors!
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Mark Szabo 1986 911 Targa 3.2 (I will miss you) 1985 Scirocco 8V (I will not miss you) 1986 Dodge B150 Ram Van (I can't believe I got $200 for you) 1987 Escort 5-speed 1.9 RIP |
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That ring trick sounds great if you can make it work.
The difficulty I had with clamping this seal is a concern that the rubber part might be cut. In fact I tried clamping on one of my old ones just to test, and sure enough it cut. Ultimately I got one on just by using my "kung fu grip" - just squeezed with my fingers. It was to the point of pain, tears rolling down my cheeks, sore fingers for days - but it worked. Next I tried using several layers of tape to try and spread the load on my fingers. This reduced the pain level a great deal and allowed me to finish the job. A set of leather work gloves might be another good way to go, but I haven't tried this.
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Clark Retired, I'm now posting under my real name Chuck Moreland Day Job - Elephant Racing Basic Transportation - '86 Cab - "Sparky", '77 Targa - "The Peaper" |
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It amazes me how similar frustrating events reappear on this board. I just did this last week when I replaced the dust boots. The fronts-no problem. The rears
![]() Last edited by 89911; 02-07-2002 at 07:41 PM.. |
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Had you applied silicone grease to the inner portion of the new seal before attempting to seat the seal?
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' |
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Thanks, the "pencil" trick and some grease worked great.
Actually I cut some 5/8" dowel rods to the correct length- sanded them down smooth and for a good snug fit. I used 4 of them, one every 90 degrees. The first 3 went on easy, the last one was tight-but after a few seconds the metal band would pop right on. Did all 4 in about 10 minutes- no tears and no sore fingers ![]() |
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