My first question is, how did you notice the clutch pedal moving? Do you
make a habit of resting your foot on the clutch pedal? Not recommended.
But really, I am puzzled by this behavior. The clutch is a purely hydraulic
system. Movement of the engine/transmission cannot possibly feed back
through the clutch pedal. And throttle position should have no effect on the
hydraulic pressure, either. Now if you were talking about the brake pedal,
and if you had a vacuum brake booster, then maybe something like that could
happen. But even if the thrust washers on the engine were gone, and the
crankshaft were free to move in and out, there wouldn't be any pressure on
the throwout bearing with the clutch engaged, so I don't see how it could
feed back to the pedal.
?????
on 3/29/01 12:23 PM, Wil Boucher at william@greenmgb.com wrote:
> I noticed something yesterday, and wanted to ask if it was normal...
>
> The bits:
> 1969 MGB, non-overdrive transmission, standard engine...
>
> When traveling along a good stretch of empty straight road yesterday, I
> noticed some movement in my clutch pedal that I never noticed before.
> It seems that when I am accelerating, with the clutch fully engaged, and
> then let off the gas, with the clutch still fully engaged, the pedal moves
> down about 1/4-1/2 inch. almost as if the transmission of engine were
> shifting...then when I step on the gas again, it moves back up to where it
> was.
>
> Speed/gear dosen't seem to be a factor in this, I noticed it at different
> speeds, in different gears.
>
> Also note that the distance of travel estimates are guesses, as it is
> kinda-hard to gage the distance purely from foot feel alone...
>
> Is this an indicaton of something on the way out, or just normal travel.
>
> Am I just a paranoid guy?
>
>
> Thanks.
> Wil Boucher
> 1969 MGB
>
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the red one with the silver bootlid.
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