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Re: [T3] Brakes Pulling to one side -- A REVELATION

On 3 Jul 99, at 17:17, John M. Kowalski wrote:

> After much head scratching and levying false blame on a weak spring, here
> is what I found:  One of the brake shoes that came in the set (of 4) was
> slightly different from the others.  The mounting hole for the smaller
> spring (furthest from cylinder) was about 1 cm farther from where it
> should have been.  After close inspection, I discovered that there were
> several slight cosmetic differences (metal corners shaped differently)
> between that shoe, the other three Bill and Steve's shoes and the four
> stock shoes that I removed from my car two years ago.  This location of
> the spring hole 1 cm further from where it was supposed to be caused that
> spring to be under more tension than its counterpart.  THIS caused the
> other shoe to dig into the drum first, thus causing the car to jerk to
> that side when I applied the brakes.dJą Eyes! Wow, that would be pretty hard to spot.

> The remedy?  I drilled a new brake spring mounting hole in the correct
> location.

This is a perfectly good solution.

> Why didn't I notice this when I originally installed the new shoes?
> Probably because the old wheel cylinders worked so poorly that their
> inefficiency masked this problem.  It only surfaced once I replaced all
> the other parts in the front brake system.

So you actually replaced parts in stages? You had the best chance to 
notice this problem when you actually installed the springs and might 
have noticed that THIS spring went in awfully easily.

> The moral?  Check ALL parts -- especially rebuilt ones such as brake shoes
> and even wheel cylinders -- that you buy from suppliers.  That will add
> another quality control step to ensure that you are putting proper and
> matching parts on your dear T3.

Absolutely! Never assume that something is right just because someone 
implied that it was.

Congratulaton on a good detective story.

Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA

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