Mitchell, Doug (D.B.) wrote:
>James,
>
>Assuming that the shudder to which you refer is a pulsating
>brake pedal, I would suggest that you have the front brake
>rotors checked for runout. (Trueness). This is usually an
>indication of a warped rotor.
>
>How much higher tyre pressure are you talking about? On my
>'73, I try to keep close to the original spec. I feel the
>ride is much too hard if you go too far over the recommended
>pressures. I generally keep mine at 22-23 front and 26-28
>rear.
>
>As far as replacing the dampers, yes they are much easier on
>the rear than on the front.
>
>Cheers,
>
>Doug
>
>--
>Doug Mitchell
>mailto:dbmitch@peoplepc.com
>'73 Spitfire 1500 - about to celebrate 27 years of ownership
>'73 Stag - about to celebrate 1 year of ownership
>
>>-----Original Message-----
>>From: James Carruthers [mailto:j.carruthers@rave.ac.uk]
>>Sent: Thursday, August 29, 2002 6:11 AM
>>To: spitfires@autox.team.net
>>Subject: Brake pedal shudder & squeak on rear tyres
>>
>>
>>Hi Listers,
>>
>>
>>What am I to summise from brake pedal shudder? Its mainly at
>>high speed,
>>less noticable at lower.
>>
>>Uneven brake discs? Can't tell if its from the front or the
>>back really.
>>
>>
>>And another thing, since I got my tyres changed, (they've
>>been at a higher
>>psi - which I thoroughly recommend - I did mean to write a
>>report on some
>>testing I did a while back) when ever I go over bumps quickly
>>they squeak
>>like large mice - I think it used to do this on my front
>>wheels, until I
>>changed my dodgy shocks and springs. So my guess is that the
>>rear suspension
>>is "compressing" and the tyres are touching the wheel arches.
>>Any ideas?
>>
>>Please tell me fitting new dampers on the back is easier than
>>the front...
>>
>>
>>
>>
>>
>>James
>>
>>
>>1977 Pimento Red Spit
>>
This can also be caused by a rough spot in the drums or drums that are
out of true. I had a Honda many years ago which had a drum which had
frozen to the shoe. I never had it fixed properly (the repair would have
cost more than the car was worth) I just dealt with the pulsating brake
pedal.
Ben
--
Corvallis, Or.
'79 Spit daily driver, Bitsy
(she has a different idea of daily than I)
One nation, UNDER GOD, indivisible...
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