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New caliper pistons fit tight.

To: 6-Pack <6pack@autox.team.net>,
Subject: New caliper pistons fit tight.
From: Don Malling <dmallin@attglobal.net>
Date: Sun, 10 Jul 2005 15:30:12 -0400
How tight should the new calipers be in the cylinders. Mine are very tight. 
Almost can't even turn 
them in the cylinders. I bead blasted the cylinder cavity so I know the rubber 
seal groove was very 
clean. Hmmm I put some of that red brake lube in the groove. Maybe that was a 
mistake. I'll clean it 
out. I just had to remove one because I put it together w/o the dust boot. It 
was harder to get this 
new one apart than it was the old rusty ones.

Anyway should I be able to insert and withdraw the pistons easily -- by hand 
w/o tools or do they 
fit tighter than that? How tight is too tight? I guess I don't have a feel for 
how powerful the 
hydraulic system is.

Even if the hydraulics are strong enough to push the piston out, what causes 
the brake pads to pull 
away from the rotors when the brake pedal is released? These pistons are so 
tight, I would imagine 
they would drag on the rotors.


Thanks,


Don Malling




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