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Old 01-20-14, 04:07 PM   #1
5matt
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Campy Veloce caliper re-assembly help

Help! I took my 1999 dual pivot calipers apart for cleaning, the rear went together fine but the front is either too tight or too loose-no in between. Is there an exploded view of these calipers available? Is there a trick to putting them together?
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Old 01-20-14, 07:49 PM   #2
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Originally Posted by 5matt View Post
Help! I took my 1999 dual pivot calipers apart for cleaning, the rear went together fine but the front is either too tight or too loose-no in between. Is there an exploded view of these calipers available?
Yes. Campagnolo has spare parts catalogs on-line dating back to 1994

http://www.campagnolo.com/jsp/en/doc/doccatid_3.jsp



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Is there a trick to putting them together?.
You need to hold the hex key in the bolt and pivot block it threads into steady when you tighten down the lock nut.
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Old 01-20-14, 07:56 PM   #3
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You need to hold the hex key in the bolt and pivot block it threads into steady when you tighten down the lock nut.
+1 Shimano dual pivot brakes adjust the same way. The difference between too tight and binding and too loose with play is a VERY small turn of the adjusting bolt.
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Old 01-21-14, 01:45 AM   #4
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IME the Campy brakes can be a fair bit tougher to get the damn spring in. It can be a right mission with a dual-pivot!

Aside from the variation in the amount of hassle on that score, other variables include blind bolts that may lack a locknut and just use Loctite and a grub screw, or whether grub screws are present on both pivots or just the middle one.
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Old 01-21-14, 11:25 AM   #5
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IME the Campy brakes can be a fair bit tougher to get the damn spring in. It can be a right mission with a dual-pivot!
The last time I put one together I tried putting the outside spring leg in its little plastic bushing before installing the offset arm/cam/pivot bolt/etc. With the offset arm and cam against each other a small wiggle popped the cam over the steel ball in the centered arm and let me finish putting it together.

It was a little different adjusting pre-load with spring tension but seemed to work great and was much easier than fighting the spring after the brake was otherwise back together.

As a foot note those springs eventually fail due to fatigue so having spares on hand is a fine idea.

Last edited by Drew Eckhardt; 01-21-14 at 11:29 AM.
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Old 01-21-14, 11:30 AM   #6
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Thanks for the diagram and advice. Back to the workshop tonight!
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Old 01-21-14, 09:46 PM   #7
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As a foot note those springs eventually fail due to fatigue so having spares on hand is a fine idea.
I came across a pair of busted Campy springs on a bike once; had to kludge springs out of spokes. They were a lot softer being only 2mm (IIRC the springs are more like 3mm), but they did the job.

I've never come across fatigued Shimano springs, and I've seen a hell of a lot more of em.
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