Hi Bob,
It is unlikely that you have an incorrect caliper 16P is correct for all
BJ8s after 26705. The Girling 14 calipers used prior to this had a different
mount bolt spacing.
You most definitely should not use a "C" clamp to insert the pistons. If the
grooves are clean and the seals are installed and lubricated correctly you
will be able to squeeze the pistons in by hand. If you use any sort of
mechanical clamp you will almost certainly damage the seals and they will
leak.
I would guess that the pads don't fit because a piece of the torn seal is
stuck under the piston edge in the bottom of the bore preventing it from
seating correctly.
If air pressure will not remove the pistons you may have to resort to the
old grease gun trick, after which it is absolutely essential that you
THOROUGHLY clean the caliper fluid channels with methyl hydrate and dry with
compressed air.
Sounds as though you have a good days work ahead of you tomorrow!!.
Michael Salter
http://www.netbug.net/blogmichael/
-----Original Message-----
From: owner-healeys@autox.team.net [mailto:owner-healeys@autox.team.net] On
Behalf Of Bob Brown
Sent: Friday, December 15, 2006 4:47 PM
To: Healeys
Subject: BJ8 Calipers
Folks,
I am working on a BJ8 39881. All parts I've purchased have been for a
late BJ8. Last week, I attempted to rebuilt the front brakes, new
rubber, pistons, pads, again ordered late BJ8 parts.
I needed to use a C clamp to get the pistons in place, then when I
attempted to insert the brake pads, they don't fit. And of course the
pistons don't move. I have tried air pressure but no luck.
My first thought after (now) carefully looking at the situation, is that
I have early BJ8 calipers on a late BJ8, is this possible? I have
removed one caliper to look for markings and have found the stamping
TYPE 18P (could be a 16 or 10 not clear).
My questions; are late & early calipers interchangeable? How do I get
the pistons out now that I "forced" them into the calipers? Should I
look for late BJ8 calipers?
Comments?
Bob
BJ8 (daughter's)
BT7 (mine)
AN5's (wife's)
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