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Re: [Roadsters] intermittent brake pulling--revisited

To: chalsted <chalsted@comcast.net>
Subject: Re: [Roadsters] intermittent brake pulling--revisited
From: Tim <tputland@charter.net>
Date: Sat, 4 Oct 2008 14:41:52 -0400
This is on my SPL that runs great by the way...

I did as Craig suggested and was able to turn both wheels pretty easily before 
and after applying the brake. The rotors are as nice as can be expected and I 
can see what appears to be at least half of new thickness on all four pads.

I should add that I do have a slow brake fluid leak in the right front but it 
is minor. The reservoir was down only a little after well over a year. I will 
rebuild this system next spring but was hoping to figure out this pulling 
before our Midwest run this weekend coming up. 

The pulling to the left has only happened that one time the other day but was 
very severs and did go away. The pulling to the right has been going on for 
some time and is not real severe.

Any other ideas? 

Thanks

Tim


---- chalsted <chalsted@comcast.net> wrote: 

=============
Hi Tim,

my guess is that one of the pistons on your LF caliper is very close to 
frozen up. wasn't sliding out to contact the rotor so brakes one on the 
left, both on the right... pull to the right. then the piston decided to let 
loose enough to contact the rotor but not retract... both working on the 
right, one working properly maybe on the left but the other basically locked 
against the rotor... hard left... drive 10 miles, wear off some pad surface 
and rotor turns better.. brake again, same piston pushes a bit further out 
but doesn't retract and same happens again. just my guess...jack up the car, 
have someone spin each front wheel and apply the brakes. see first if the 
wheel stops, then see if after you let off the brakes it will spin freely 
again. shouldn't be that bad a job, just need to either rebuild the piston 
assembly or replace the piston assembly or have it sleeved in stainless at 
White Post or Apple Hydraulics so it won't ever happen again. White Post 
charges $80 a hole, I stopped by to see Billy last week. he says only a 
couple day turnaround. I'll probably be going that route on the front brakes 
on my 1500.

Craig
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