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Re: clutch bleeding

To: Robert Duquette <RobertDuquette@Sympatico.ca>
Subject: Re: clutch bleeding
Date: Sat, 25 Aug 2001 22:41:01 -0700
Cc: spridget list <spridgets@autox.team.net>
References: <1c3b01c12de2$1671cc60$7394e440@bobhost.Sympatico.ca>
O.K. I concede.  I'm still curious what the manual says for bleeding this setup
though.
Mike

Robert Duquette wrote:

> Problem?
>
> I don't know about ounces, but I approximate that you get an extra coupla
> pumps before you have to pull your head out of the footwell to top up again.
>
> Obviously, it is of no concern to you with your bugeye.  But would you
> consider it to be a detriment to the excercise, if you had your bugeye's
> rear jacked way up at the time that you had to bleed your MC to flush it?
>
> -----Original Message-----
>
> >I still don't see what the problem is.  Even thought the reservoir is at
> the same
> >angle as the footwell the clutch master would not run dry unless the
> reservoir
> >was almost empty.  Just how much do you gain by leveling the master?  An
> eighth
> >of an ounce or so?
> >Mike MacLean Supercharged Level Reservoired 60 Sprite
> >
> >Robert Duquette wrote:
> >
> >> Hey Mike!
> >>
> >> I don't believe that the reservoir does sit level, but I have not
> >> investigated the innards.  A more level reservoir is the goal, as I
> >> understand it.  I could take a photo and post it or draw a picture and
> post
> >> it, but first, imagine this ( or try it ).  Take a drinking glass and put
> an
> >> inch of water in it.  Now tilt it to about the same angle as the shelf
> under
> >> the bonnet that the MC is attached to.  The upper part feeds into the
> brake
> >> line.
> >>
> >> Okay, pictures at 11 . . .
> >>
> >> First the MC in question.  Notice the beer bottle and the liquid in it.
> >> Okay red was a bad choice!
> >> http://www3.sympatico.ca/robertduquette/11/clutch_MC.jpg
> >>
> >> Now if you can imagine lifting the front end of the car, this happens:
> >> http://www3.sympatico.ca/robertduquette/11/imitate_front_lift.jpg
> >>
> >> You may note that I did not lift the car, but merely put my finger under
> the
> >> bottom of the front edge of the bottle.
> >>
> >> Another experiment that you can do involves volume.  Stand a full glass
> of
> >> beer upright and don't tilt it.  The beer stays full ( unless you have a
> >> straw ).  But if you were to tilt it to the angle of the clutch MC, it
> would
> >> not be able to hold as much volume of liquid and some would spill out,
> >> because a liquid seeks its own level.  ( Here come the engineers. )  And
> >> that's what this whole thing was about.  Mostly the volume of fluid that
> you
> >> can put in the MC between pumping sessions.  But also, that you won't
> start
> >> pumping air into the line as early with the same amount of fluid because
> the
> >> fluid will be more level.  ( I can't imagine how much you would have to
> lift
> >> the front end to actually get the MC level. )
> >>
> >> Robert D.
> >>
> >> -----Original Message-----
> >>
> >> >Even if it does slant down, doesn't the reservoir sit level?  Are you
> >> trying to
> >> >level the bore or the reservoir?
> >> >Mike MacLean Supercharged 60 Sprite
> >> >
> >> >Robert Duquette wrote:
> >> >
> >> >> Yes, you would have the combined clutch and brake master, as in my '65
> >> >> Sprite and you are quite correct that it is level.
> >> >>
> >> >> I spouted off with the image of my '67 Midget hydraulics in mind, and
> >> yes,
> >> >> it does slant down towards the front at the same angle as the pedal
> box
> >> is
> >> >> mounted.  If you have O S&M, take a look at page 134.
> >> >>
> >> >> So, I stand ( sit actually ) corrected in that the advice does not
> apply
> >> to
> >> >> all models.  I found that it helped in that I could get a bit more
> fluid
> >> >> through the system between top ups.
> >> >>
> >> >> Robert D.
> >> >>
> >> >> -----Original Message-----
> >> >>
> >> >> >I don't know about the square bodied cars, but my MC is level when
> the
> >> car
> >> >> is
> >> >> >sitting level.  How would you be expected to "top it off" if it sat
> on
> >> an
> >> >> angle?
> >> >> >Does your driver's handbook say to park on a hill to fill your MC?
> >> >> >Mike MacLean Supercharged 60 Sprite
> >> >> >
> >> >> >Robert Duquette wrote:
> >> >> >
> >> >> >> Front end up, was what I heard.  It is supposed to make the MC hold
> a
> >> bit
> >> >> >> more fluid because you are levelling it out somewhat.
> >> >> >>
> >> >> >> RD
> >> >> >>
> >> >> >> -----Original Message-----
> >> >> >>
> >> >> >> >  Didn't someone recently say that it helps if you raise the back
> of
> >> the
> >> >> >> car
> >> >> >> >several inches because of the funny angle at which the slave cyl.
> is
> >> >> >> mounted?
> >> >> >> >  Ed in NC



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