Re: IML: Grabbing Brakes

[Mike Pittinaro <mechimike@xxxxxxxxx>]

It very possibly could be related to the rear brakes,
but the front calipers on my 67 are rebuilt and
stainless steel sleeved to boot.  Rotors and pads are
good, too.  And I've confirmed the issue is with the
booster, as disconnecting it and drivingt with manual
brakes does not give the same sticking issue.

But boosters are $$, so for now...

--- randalpark@xxxxxxx wrote:

> As a point of clarification, for most people this
> symptom would mean 
> that the master cylinder, calipers, or wheel
> cylinders are bad. I 
> respect others knowledge for their own car, but
> brakes that do not 
> immediately release is not usually something that is
> fixed by adjusting 
> the vacuum to the power booster. Sticky brakes,
> mushy pedal, or pedal 
> all the way to the floor usually means a complete
> brake job, or at 
> least a trip to a respected mechanic if you are not
> experienced in 
> working on brakes.
> 
> Paul W.
> 
> -----Original Message-----
> From: mechimike@xxxxxxxxx
> To: mailing-list@xxxxxxxxxxxxxxxx
> Sent: Tue, 16 Jan 2007 7:59 AM
> Subject: Re: IML: 67 LeBaron brakes
> 
> > How do you restrict the vacuum to the brake
> booster?
> 
> The problem I have had with my 67 Crown's brakes is
> that the brakes tend to "grab" and stay applied for
> a
> few moments after I lift my foot from the brake
> pedal.
>  I found that by restricting the vacuum boost this
> problem was alleviated.
> 
> The way I restricted the boost was to remove the
> vacuum line from the booster and insert another
> plastic tube with a smaller diameter hole inside of
> the vacuum tube.  Thus, the ID of the orifice the
> air
> must pass through is reduced (in this case, from
> 3/8"
> to 1/8") and the vacuum is restricted.  Note, this
> is
> not a perfect fix, as the steady-state vacuum level
> will still be the same, but it will take longer to
> build up that vacuum level in the booster.  So under
> prolonged brake applications, I still get some grab.
> 
> --Mike Pittinaro
> 
> 'To Engineer' was never meant to signify poking
> around with a mouse on 
> a
> Nintendo-on-steroids computer system.
> 
> 'It's a shallow life that doesn't give a person a
> few scars'
> -- Garrison Keillor
> 
> 
> 
>
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--Mike Pittinaro

'To Engineer' was never meant to signify poking around with a mouse on a Nintendo-on-steroids computer system.

'It's a shallow life that doesn't give a person a few scars' 
-- Garrison Keillor


 
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