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Re: Uneven brake wear

To: "Michael D. Porter" <mporter@zianet.com>
Subject: Re: Uneven brake wear
From: Ted Schumacher <tedtsimx@q1.net>
Date: Mon, 03 Feb 2003 08:09:39 -0500
Cc: Phil Ethier <pethier@isd.net>, Alex Redding <aredding@mail.com>, Triumphs@autox.team.net
References: <20030130002725.66637.qmail@mail.com> <000b01c2cb1b$eae88e20$9865fea9@yourozqwz45srp> <3E3E2140.28C4FD46@zianet.com>
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.2) Gecko/20010726 Netscape6/6.1
also check for a sticking caliper piston.  a little drag on 1 side when 
the piston doesn't fully return will do this.  ted

Michael D. Porter wrote:

>Phil Ethier wrote:
>
>>----- Original Message -----
>>From: "Alex Redding" <aredding@mail.com>
>>To: <Triumphs@autox.team.net>
>>Sent: Wednesday, January 29, 2003 6:27 PM
>>Subject: Uneven brake wear
>>
>>>Check your textbooks gentlemen, uneven pad wear on the same caliper is
>>>
>>almost always caused by a problem in the slide mechanism.
>>
>>I did not know that Triumph cars used sliding calipers.  The calipers in my
>>Lotus (Spitfire) are two-piston as were the ones in my Midget.
>>
>
>I'm really late getting into this fray, but, as Phil says, there's no
>slide. Strictly two pistons. Others have suggested that the piston is
>sticking, and I'd go along with that, except that the original problem
>was that both left and right sets of pads were wearing the outside pad.
>In thinking about the front end geometry, there's a couple of degrees of
>positive camber or so on this car. While the caliper is aligned to the
>vertical link (in theory, maintaining orientation with the rotor with
>the positive camber), that positive bias also causes the rotor to rub
>more on the outside pad, because of bearing play. If the bearing play
>were slightly excessive (not enough to cause noticeable bearing wear),
>the rotor will tend to lean more into the outboard pad, causing some
>additional wear. 
>
>Just my couple of cents.
>
>Cheers. 
>

-- 
Ted Schumacher
tedtsimx@q1.net
http://www.tsimportedautomotive.com
108 S. Jefferson St.
Pandora, Ohio, USA
Fax: 419.384.3272 (24 Hrs.)
Phone: 800.543.6648 (US & Canada)
Tech/ Gen. Information/ Worldwide: 419.384.3022

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