[Healeys] Split the Calipers?

Bob Haskell rchaskell at earthlink.net
Sat Feb 18 12:32:53 MST 2017


I contacted TRW a few years ago, who owned Lucas/Girling at the time, 
and got the same answer - don't split the calipers.  I'm guessing that 
the bolts are considered single use.  I split my calipers when I rebuilt 

I used chassis grease to get the pistons out.  The metal tube of the 
small hand-held grease gun I have has the same threads as the bleeder 
screw.  If only one piston moves you might have to clamp it so more 
force can be applied to the other. I made a block to bolt on to one half 
that I could screw the grease gun into if I couldn't get both pistons 
out before splitting the caliper.

British Car Specialists has a replacement for the square o-ring.  I 
don't know who carries the bolts.  I was going to use some AN bolts 
(Earls), but the threads weren't long enough.


Bob Haskell
AHCA 3000 MkI registrar

On 02/18/2017 01:24 PM, Mike Tobin wrote:
> Hi All,
> Time to attack the front calipers on the BT7.  They've been sitting for
> over 30 years and are really sad looking.
> I'm thinking the only way I'm going to get a purchase on them to get
> them out is to split the calipers.  The factory manual, however,  sez
> (in BOLD) to not attempt this.   Why is this?  In the archives folks say
> it can be done.  Anything I have to watch for other than being clean and
> careful?
> Cheers and Thanks,
> Mike Tobin
> Townsend, Montana
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