[Healeys] BJ8 Plugs

Tue May 20 16:53:45 MDT 2014

would there be any "fade" in the pedal if it is leaking?

Price Lindsay

239-596-8518 (Home)
630-841-6300 (Cell)
050.rpl at gmail.com

On May 20, 2014, at 6:31 PM, Michael Salter wrote:

> Sorry to be the bearer of bad tidings Price but if you have been working on
the brakes the likelihood that the servo is the source of the problem is
fairly high.
> New brake fluid is more tends to have superior 'penetrating" properties than
old stuff and will often cause seal leakage when added to an older system.
> When you add new fluid, after the master cylinder, the firs component that
the new fluid reaches is the brake servo and it makes its way past the seals,
into the servo chest and then up to the manifold.
> To check undo the lower screws of the chest of the servo unit and carefully
pry the lid away from the chest. If the servo seals are leaking brake fluid
will run out.
>
> Michael S
> BN1 #174
>
>
> On Tue, May 20, 2014 at 6:16 PM, Price Lindsay <050.rpl at gmail.com> wrote:
> Brake fluid level does not appear to be low. I have been working on the
brakes (replaced a rear cylinder and bled the system) and topped off the
reservoir.  How do I tell if the servo is bad?
>
>
> Price Lindsay
>
> 239-596-8518 Home
> 630-841-6300 Cell
> 050.rpl at gmail.com
>
> Sent from my iPhone
>
> On May 20, 2014, at 5:57 PM, Michael <michael.salter at gmail.com> wrote:
>
>> The vacuum source for the brake servo is the hose connected to the upper
surface of the inlet manifold near the rear.
>> If the seals in the servo fail brake fluid is drawn into the inlet manifold
from the servo through that vacuum hose.
>> You will find that the brake fluid level is well down if that is the
problem.
>> Michael S
>> BN1 #174
>> From: Price Lindsay
>> Sent: b5/b20/b2014 5:53 PM
>> To: Michael
>> Cc: Oudesluys; Healey List
>> Subject: Re: [Healeys] BJ8 Plugs
>>
>> How would brake fluid be drawn into the carbs?
>>
>> Price Lindsay
>>
>> 239-596-8518 Home
>> 630-841-6300 Cell
>> 050.rpl at gmail.com
>>
>> Sent from my iPhone
>>
>> On May 20, 2014, at 5:23 PM, Michael <michael.salter at gmail.com> wrote:
>>
>>> I would check that brake fluid is not being drawn in from the servo.
>>>
>>> Michael S
>>> BN1 #174
>>> From: Price Lindsay
>>> Sent: b5/b20/b2014 5:20 PM
>>> To: Oudesluys
>>> Cc: Healey List
>>> Subject: [Healeys] BJ8 Plugs
>>>
>>> Attached are some photos of the plugs I just took out of my car. It has
been
>>> running great until today. It was sluggish on acceleration, would not go
above
>>> 50 mph and would not maintain speed. I put some oil in the rear carb dash
pot
>>> but same thing. Finally I pulled the plugs. The photos show their
condition.
>>>
>>> Number 6 is covered in a whitish powder. Number is also white but not as
>>> thick. Number 4 is a little better and has a piece of stuff stuck in the
gap.
>>> Numbers 3, 2 & 1 are brownish and seem to be better as you go towards
number
>>> 1.
>>>
>>> Could the crud on number 4 cause the others to look as they do?  Could
this
>>> cause the engine to behave as it does?
>>>
>>> I thought maybe it was fuel but I put about 12 gallons of fresh fuel in
with
>>> no change. I have a facet fuel pump in series with my SU. It has been in
for a
>>> few miles without incident. I thought it might need to be primed so I did
that
>>> without any change. Should I bypass the facet to see if that helps?
>>>
>>> For the listers I know the pictures will be stripped out. If someone
would
>>> like to see them, let me know.
>>>
>>> Thanks for your help.
>>>
>>> [demime 1.01d removed an attachment of type image/jpeg which had a name of
photo 1.JPG]
>>>
>>> [demime 1.01d removed an attachment of type image/jpeg which had a name of
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>>>
>>> [demime 1.01d removed an attachment of type image/jpeg which had a name of
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>>>
>>> [demime 1.01d removed an attachment of type image/jpeg which had a name of
photo 4.JPG]
>>>
>>> [demime 1.01d removed an attachment of type image/jpeg which had a name of
photo 5.JPG]
>>> Price Lindsay
>>> 67 BJ8
>>>
>>> Sent from my iPhone
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