[Healeys] BJ8 Brakes

[Roger Grace]

Yes these are the beasts. Thanks for that Andy and to all for numerous
ideas.
Yes, and given all the bleeding have done it hopefully is the issue.
This morning I took 3/4 of a jam jar (almost a reservoir) of fluid out of
each wheel; minimal air came out using a vacuum pump.
Some minor improvement and pedal now about an inch from floor on first pump
and car is ... maybe driveable.
As I don't have a helper have to use this technique; it took but 10 mins to 
bleed when I recently changed out my booster; have also ordered some
Russell Speed Bleeders.

Not quite sure how to address this reverse bleeding procedure that Andy
suggests.
I have a vacuum pump that have been using to bleed with and it does not
involve any pedal pumping.
Was thinking of trying to suck from the booster bleeder, from each calliper 
in turn -
any thoughts ?

Tkx
rg



-----Original Message----- 
From: Andy Thorp
Sent: Sunday, July 3, 2016 2:51 AM
To: 'Healey List'
Subject: Re: [Healeys] BJ8 Brakes

If these are the calipers in question then the reason for the problem is
kind of obvious- there is no way of getting air out of one half as it has to
flow downwards, then across the bottom pipe and up the other side. Any air
stuck in the bores behind the pistons will stay trapped there. Reverse
bleeding should clear it if the internal drillings are done sensibly.

https://www.ahspares.co.uk/product-images/fullsize/10a937bf-2288-4027-a5ec-2e753aadac6f-3.jpg

Andy.
--------------------------------------------
On Sun, 3/7/16, Simon Lachlan <simon.lachlan at homecall.co.uk> wrote:

Subject: Re: [Healeys] BJ8 Brakes
To: "'Healey List'" <healeys at autox.team.net>, "'Roger Grace'"
<roggrace at telus.net>
Received: Sunday, 3 July, 2016, 8:17 PM

Bleeding brakes can drive you
crazy.See the attached, from my BMC
manual. It addresses the question rather neatly, suggesting
that air may be drawn in at the end of the downward push;
for example, the threads on the bleeders may be slightly
worn.The trick is to close the bleeder
100% before the downward stroke ie, most important, while
fluid is still coming out.A device such as A Gunson’s
Eezibleed will mange that OK.The pdf’s first line may seem a
little strange......it’s a note addressed to myself. The
relevant paragraph is not in my pdf version of the manual
for some reason so I added it as a reminder.Good luck,Simon
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