In a message dated 09/08/2007 1:26:11 A.M. Pacific Daylight Time,
paul.hunt1@blueyonder.co.uk writes:
If they pump up that sounds more like air in the system, perhaps from
boiling in your case. I find it difficult to believe that the drums could
wear down so fast that the pedal sinks, and also that pumping the pedal
could 'compensate' for it.
PaulH.
----- Original Message -----
> Interesting. The reason that I want to install discs on my BGT is
> because after a few laps, the drums wear enough that I have to pump
> the brakes a couple times every time I need to brake to keep the pedal
> from sinking halfway to the floor.
____________________________________
What it sounds like to me (only because I am intimately familiar with it) is
excessive end float on the front bearings.
This was a problem on the rear disc brake cars in particular including my
Twincam and some early Jensen 541s. As you go through corners (hard) the hubs
move back and forth enough to kick the pads back and you need to push them back
out before you get a nice hard pedal again. Not something you usually notice
on the street, as you rarely corner hard without braking.
The cure is to make sure end float is at minimum and to use your left foot
to move the pistons out while you are still on the straight, ready for the next
braking area. Becomes second nature to a Twincam driver, but I hadn't heard
of much problem on an MGB. Fitting rear discs to the MGB might actually make
the problem worse, not better as then you'd have two ends with pistons to
push back into the calipers.....
Bill Spohn
_______________________________________________
Edit your replies
Mgs@autox.team.net
http://autox.team.net/mailman/listinfo/mgs
|