 Refinishing 4 piston calipers, any experience? |
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| davep |
 Jun 8 2006, 05:21 AM
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914 Historian  Group: Benefactors Posts: 5,359 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada   |
I just picked up a pair of 944 Turbo calipers that need a bit of work. This is the first of these calipers for me to play with. While the early 911 "S" caliper is aluminum, and I have several of them, they are bare aluminum with no protective finish I have noticed. These Turbo calipers are a lot different. They are painted and plastic dipped. The plastic is peeling off in places. Further, there are plates that fit on either end of the pads that are fastened in place with Allen key bolts. To separate the caliper halves, the 4 main bolts must be removed, plus these bolts and the cross-over brake line. The bolts inside look like they will be very difficult to remove. The plates themselves look like stainless steel.
So, any tips for disassembly? Any tips for cleaning & refinishing? What is required to install on a 911 strut (bolt spacing is wider than the 911 "S")? |
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| RON S. |
Jun 8 2006, 07:22 AM
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9140430841, FINALLY RUNNING Group: Members Posts: 1,216 Joined: 22-May 03 From: WALTERBORO,S.C. Member No.: 724 Region Association: South East States |
Dave,
I recently stripped apart a front set of '78 930 turbo calipers to re-do to go on my 914/6.Everything is currently at the powdercoater.Here's what I can share from my ordeal. The allen bolts are a pita to remove.You gotta lock the caliper in a vice and calmly and slowly pull on the allen wrench.you may even need to use a cheater bar.Outa 16 bolts to remove,I only had one bolt pull some threads,but not enough to cause concern.I soaked everything down w/penetrating oil while doing this. One note,Make Sure your allen wrench you use is a Brand name made in USA wrench.If your bolts are really stuck,and you use a cheap Harbor Freight allen wrench,all it'll do is twist,and maybe damage the bolt head. On the crossover line.One end usually comes off freely,while the other end locks.I always undo the free-end,then twist off the stuck end.Then lock the stuck end in a vice,and use a cheap propane torch on it to heat it up,and slowly wiggle it a bit at a time till that end free's up. Pistons can pop out with an air hose. Also,Vertex sells a rebuild kit for the 944t fronts w/pistons for about $200.00 Ron |
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Posts in this topic
davep Refinishing 4 piston calipers Jun 8 2006, 05:21 AM
Jeroen yup, the plates are SS
those allen bolts are a PIT... Jun 8 2006, 06:45 AM davep Is there a good site that has photos of all the di... Jun 8 2006, 10:45 AM
Jeroen QUOTE
TimT The rebuild lits can be got direct from Brembo.. o... Jun 8 2006, 12:18 PM davep QUOTE
Eric_Shea QUOTE
davep Best parts prices I've found so far are:
... Jun 9 2006, 07:50 AM |
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