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Registered
Join Date: Dec 2001
Location: Long Beach
Posts: 13
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912 calipers rebuild or new?
Just wanted to know if anyone else has tried to rebuild some old 912 calipers. I'm not talking about ones that are in good shape ethier. Ones where you take your air line to the fluid inlet and blow the pistons out ( some don't come out at all ). If you have tried this did they work ok? Did you try to clean the piston sleave of all the corosion? If so how did you go about it? Just curious because at the shop it's all ways remove, replace. I have rebuilt some nasty ones and tried them on my car and they work ok. Just can't get the nice hard pedal like the 912's at the shop with all new gear. I know I should just buy all new gear, but that would be to easy! HA HA
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12-20-2001, 08:39 AM
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Join Date: Apr 2001
Location: Linn County, Oregon
Posts: 48,493
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Is this your own car? Just a thought, but a recent tech article in EXCELLENCE mentioned an aftermarket kit for 15" wheel cars...a conversion to Boxter brakes. That should give a lightweight 911 or 912 some great stopping power, yes? JUst some food for thought...
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12-20-2001, 09:17 AM
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Join Date: Dec 2001
Location: Long Beach
Posts: 13
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I saw that article as well. Sounds like it would be sweet.
Looks like it wouldn't be hard to convert it over. Man, I bet my car would stop on a dime. Anyway the calipers I rebuilt and used are on my 67' 912, but like I said, I can't get the pedal up like the 912's at the shop with new gear. I've done all the bleeding and adjustment one would want to do on one car. But still the same damn low pedal. I'd love to get the Boxter set up but don't feel like dumping that much into this car ( have way too many projects ). Thanks for the idea though 
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12-20-2001, 11:46 AM
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Join Date: Nov 2001
Location: Austin, TX
Posts: 1,417
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I spotted this while surfing the 911 board...you're in the wrong place dude!
I recently rebuilt all of my calipers. They were really bad. No amount of compressed air moved them but my new master cylinder did. Fronts popped like firecrackers. Once I replaced the seals and cleaned the calipers of rust as best I could, all was well. If your pedal is still soft, you may want to look at SS brake lines to replace the originals if possible- the rears are a b@#$h to get off. Also, take a close look at your master cylinder, if it looks like the original single ckt ATE unit, you may want to consider the swap to a new one as they are under a hundred bucks everywhere. Morrie 67 912 |
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12-21-2001, 07:51 AM
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Registered
Join Date: Dec 2001
Location: Long Beach
Posts: 13
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Hey what can I say wasn't paying attention when I Started this post, oh well.
You know I have really been thinking about the ss lines but I just replaced all the flex brake lines on the car. And I don't think I want to do the rear ones for at least another year. They are pretty tough. My master cylinder is new also, so I've been thinking that the seals in the piston sleaves of the calipers are sucking in a little bit of air. I did replace them but that is the only thing I can think of. There is no fluid leakage anywhere I can see. I'm gonna try tearing it all apart this weekend ( if I can get my christmas shopping done ) and I'll post my success or defeat. Brad |
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12-21-2001, 11:55 AM
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Join Date: Nov 2001
Location: Austin, TX
Posts: 1,417
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Good luck man!
I am finishing up the last caliper tomorrow morning and next will tackle the rear flex lines. I have all the right tools- vise grips, torch, etc.... :-) Actually those are getting to be my last options as I haven't had much success with the flare wrenches. I guess we both need a little luck! Morrie 67 912 |
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12-21-2001, 08:28 PM
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