[Healeys] Disc Brake Upgrade

[Magnus Karlsson]

Do not forget to fit a bigger master cylinder. Without it your pedal will
bottom out before you have full brake pressure. Can be very dangerous. I do
not remember exactly but I believe that the next bigger size will be
adequate.

Magnus Karlsson
www.concourshealeys.com

30 okt 2012 kl. 22:41 skrev HealeyRick <healeyrick at yahoo.com>:

> There's been a few threads on disc brake upgrades lately so I thought I'd
> share what I've been doing with my BJ7 that needed replacement of some
scored
> discs and rusty calipers.  The later BJ8s had the best stock front brakes
> using a thicker rotor and a caliper with bigger pads and pistons. There are
> also more hi-performance pads available for the bigger calipers.
> Unfortunately, they won't bolt on to the earlier cars as the spacing
between
> the caliper mounting lugs is 3.25" on the earlier cars and 3.50" on the
BJ8s.
> I found this webpage that describes using calipers from an early '70s
Mercury
> Capri with the later discs as the Capri calipers have the correct lug
> spacing:
> http://www.cardomain.com/ride/2247236/1963-austin-healey-3000/page-2  One
of
> the benefits mentioned is that Capri calipers were cheaply available from
> rebuilders, like Rock Auto.  That has changed.  In my experience, none of
the
> suppliers had them and I finally tracked a pair of
> rebuildable cores down in a junkyard in Idaho for $75 and spent another $70
> to have them rebuilt at a local company that does caliper rebuilding for
some
> of the major suppliers.  The webpage mentions the differences between the
> metric Capri calipers and the standard Healey ones except for one major
item.
> The mounting holes on the Capri calipers are metric and slightly larger
than
> the Healey ones.  Luckily, later TR6s used a mounting bolt that have a
metric
> head and shank to fit the Capri mounting holes and a standard thread on the
> bolt to fit the Healey lugs (I don't know who figures this stuff out or how
> they do it, but I'm glad they post on the internet).  So far, the swap
seems
> to be going smoothly, I'll post up when it's all done.  Disclaimer:  Screw
> with your brakes at your own risk!
>
>
>
>
> Rick
>
>
> "Madman in a death machine"
> Follow My Nasty Boy Build:  http://tinyurl.com/yj52fwo
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