I recently fitted a set of DB hubs I bought from Mini Mania back in
'96 (I know - I'm so slack).
I fitted them to my new racecar just before Bathurst last year. At the 2nd
meeting
with these hubs on, I had a total brake failure at about 120 mph at the 1st
turn at
Sandown - *very* hairy ride which ended up about a yard and a half from an
armco barrier that it self is about 100 yds from the track.
Well I now know what happened. The shoe return springs were ground down by
the hubs causing the shue to wear out very assymetrically and rapidly. The
piston
them popped out of the wheel cylinder and presto - no brakes (early master
cylinder).
I have played around with the hubs and springs and tried all the
combinations that
seemed likely but cannot avoid a slight rubbing b/n the hubs and the
springs. As I
am heading off for a closed road special stage rally this weekend, (one with
lots of
trees and cliffs close to the roads), I have removed the hubs and gone back
to originals
until I find a solution.
Maybe I'm missing something, but these things seem dangerous to me. If there
is a
way around it, I'd appreciate hearing from you. If you reckon I'm mistaken
for some
reason, tell me why and I'll respond with an affirmative or a negaative!
Yes, I am sure that is what happened - a quick glance at the other side
showed that it
was destined to fail not far down the line.
If you do have the hubs, maybe youshould check those springs and let us know
whether the same is happening to yours.
Yes, I am aware that the top springs are handed.
Mike
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