G'day mates,
An OLD TRICK with BN1s, is to pump them up to obtain a hard pedal, then
place a length of wood against the pedal and wedge it so that the pressure
is maintained, leave this pedal pressure on for about 24 hours, then see
what you have.
I think it has something to do with the seals in the rear brake cylinders.
Rod in QLD (OZ)
-----Original Message-----
From: healeys-bounces@autox.team.net [mailto:healeys-bounces@autox.team.net]
On Behalf Of Jean Caron
Sent: Thursday, 11 June 2009 1:31 PM
To: healeys@autox.team.net
Subject: [Healeys] Bleeding brakes on BN1 -
Listers:
Seeking some help in solving a brake problem. I am helping a Club member
bleeding the brakes on his '53 BN1 but have been unable to get a hard pedal
on
the first stroke. On the second stroke, they grab very well but if you wait
even for 1 minute, it goes to the floor again on the first stroke.
The following has been done:
Replaced all 4 wheel cylinders, new repair kit in master cylinder, rear
brake
liners replaced and of correct thickness.
When trying to isolate the problem by pinching the rear brake hose, the
front
brakes are great and maintain good pedal, so the master cylinder is not the
problem. All three brake hoses are practically new(3 years old), not
cracked,
or showing signs of any leaks. All the brake lines are tight. The problem
appears to be at the back but don't know where. Any ideas would be
appreciated.
Jean Caron
Vintage Roadster Restoration
Winnipeg, Mb.
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