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There should be a small amount of free play at the pushrod to master
cylinder piston (~ 1/16" which translates to ~ 3/8" at the pedal). This
ensures the piston is able to fully return to the off position.
Check the pushrod & clevis pin at the slave cylinder. Since they are
exposed to the elements they will often wear - the hole in the pushrod
becoming elongated & the clevis pin looking more like a mini crankshaft.
All that lost motion means the clutch doesn't operate through a full
stroke.
EjR
On Mon, Oct 30, 2023 at 2:10=E2=80=AFPM <mgs-request@autox.team.net> wrote:
> Send Mgs mailing list submissions to
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> 1. 58 mga (dave northrup)
> 2. Re: 58 mga (Paul Hunt)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 29 Oct 2023 23:49:07 +0000
> From: dave northrup <dave@ranteer.com>
> To: "mgs@autox.team.net" <mgs@autox.team.net>
> Subject: [Mgs] 58 mga
> Message-ID: <f0749b4467b54c8a96fb6b7bc8ee7237@ranteer.com>
> Content-Type: text/plain; charset=3D"iso-8859-1"
>
> I am reassembling the car; it was never running and driving under my
> ownership.
>
> I noticed today as I'm attempting to get the car running and driving for
> the first time that there is play in the clutch in the rod that goes into
> the master.
>
> It is threaded about as far out as it can go.
>
> It occurred to me that I could thread a rod so that there is virtually no
> play, and that the as soon as you press the clutch pedal it will move
> inside the master. It also occurred to me that that might be a bad idea.
> Can/should I do that? or will it push too far inside the master and caus=
e
> additional problems? It isn't more than about ?" of play or so
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> ------------------------------
>
> Message: 2
> Date: Mon, 30 Oct 2023 08:18:53 +0000
> From: Paul Hunt <paulbhunt73@gmail.com>
> To: mgs@autox.team.net
> Subject: Re: [Mgs] 58 mga
> Message-ID: <3f0cd945-7962-4191-9216-445ada16c45b@gmail.com>
> Content-Type: text/plain; charset=3D"utf-8"; Format=3D"flowed"
>
> What's the biting point like?? If that's fine then leave it alone.
>
> I don't know the MGA master but on the MGB the master piston comes back
> to the circlip in the bore and positions the resting position of the
> pedal, and that determines how much 'throw' you have at the pedal, the
> slave cylinder and hence the release bearing.? Slop in the linkage at
> the pedal puts it closer to the floor and results in less slave piston
> movement and hence a lower biting point.? The same is not true of the
> linkage at the clutch end as a spring inside the slave cylinder pushes
> the piston out to take up all the play at that end, and more importantly
> to compensate for the graphite release bearing wearing down.? The more
> that wears the further the piston moves out, drawing fluid down from the
> master reservoir, so you continue to get a full stroke of the release
> arm.? That makes the MGB clutch system self-adjusting, and there is no
> scope for threaded adjustment anywhere in the system.? But as I say that
> is the MGB not the MGA.
>
> PaulH.
>
> On 29/10/2023 23:49, dave northrup wrote:
> >
> > I am reassembling the car; it was never running and driving under my
> > ownership.
> >
> > I noticed today as I?m attempting to get the car running and driving
> > for the first time that there is play in the clutch in the rod that
> > goes into the master.
> >
> > It is threaded about as far out as it can go.
> >
> > It occurred to me that I could thread a rod so that there is virtually
> > no play, and that the as soon as you press the clutch pedal it will
> > move inside the master.? It also occurred to me that that might be a
> > bad idea. Can/should I do that?? or will it push too far inside the
> > master and cause additional problems?? It isn?t more than about ?? of
> > play or so
> >
> >
> > _______________________________________________
> >
> > Mgs@autox.team.net
> > Donate:http://www.team.net/donate.html
> > Suggested annual donation $12.75
> >
> > Archive:http://www.team.net/pipermail/mgs http://autox.team.net/archiv=
e
> >
> > Unsubscribe:
> http://autox.team.net/mailman/options/mgs/paulbhunt73@gmail.com
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> Subject: Digest Footer
>
> _______________________________________________
> Mgs mailing list
> Mgs@autox.team.net
> http://autox.team.net/mailman/listinfo/mgs
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> ------------------------------
>
> End of Mgs Digest, Vol 197, Issue 3
> ***********************************
>
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-size:large">The=
re should be a small amount of free play at the pushrod to master cylinder =
piston (~ 1/16" which translates to ~ 3/8" at the pedal). This en=
sures the piston is able to fully return to the off position.=C2=A0</div><d=
iv class=3D"gmail_default" style=3D"font-size:large"><br></div><div class=
=3D"gmail_default" style=3D"font-size:large">Check the pushrod & clevis=
pin at the slave cylinder. Since they are exposed to the elements they wil=
l often wear - the hole in the pushrod becoming elongated & the clevis =
pin looking more like a mini crankshaft. All that lost motion means the clu=
tch doesn't operate through a full stroke.=C2=A0</div><div class=3D"gma=
il_default" style=3D"font-size:large"><br></div><div class=3D"gmail_default=
" style=3D"font-size:large">EjR=C2=A0</div></div><br><div class=3D"gmail_qu=
ote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, Oct 30, 2023 at 2:10=E2=
=80=AFPM <<a href=3D"mailto:mgs-request@autox.team.net";>mgs-request@auto=
x.team.net</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=
=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding=
-left:1ex">Send Mgs mailing list submissions to<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 <a href=3D"mailto:mgs@autox.team.net"; target=3D=
"_blank">mgs@autox.team.net</a><br>
<br>
To subscribe or unsubscribe via the World Wide Web, visit<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 <a href=3D"http://autox.team.net/mailman/listin=
fo/mgs" rel=3D"noreferrer" target=3D"_blank">http://autox.team.net/mailman/=
listinfo/mgs</a><br>
or, via email, send a message with subject or body 'help' to<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 <a href=3D"mailto:mgs-request@autox.team.net"; t=
arget=3D"_blank">mgs-request@autox.team.net</a><br>
<br>
You can reach the person managing the list at<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 <a href=3D"mailto:mgs-owner@autox.team.net"; tar=
get=3D"_blank">mgs-owner@autox.team.net</a><br>
<br>
When replying, please edit your Subject line so it is more specific<br>
than "Re: Contents of Mgs digest..."<br>
<br>
<br>
et=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/archive"; rel=3D"noreferrer" target=
=3D"_blank">http://www.team.net/archive</a><br>
Forums: <a href=3D"http://www.team.net/forums"; rel=3D"noreferrer" target=3D=
"_blank">http://www.team.net/forums</a><br>
<br>
<br>
<br>
Today's Topics:<br>
<br>
=C2=A0 =C2=A01. 58 mga (dave northrup)<br>
=C2=A0 =C2=A02. Re: 58 mga (Paul Hunt)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Sun, 29 Oct 2023 23:49:07 +0000<br>
From: dave northrup <<a href=3D"mailto:dave@ranteer.com"; target=3D"_blan=
k">dave@ranteer.com</a>><br>
To: "<a href=3D"mailto:mgs@autox.team.net"; target=3D"_blank">mgs@autox=
.team.net</a>" <<a href=3D"mailto:mgs@autox.team.net"; target=3D"_bl=
ank">mgs@autox.team.net</a>><br>
Subject: [Mgs] 58 mga<br>
com" target=3D"_blank">f0749b4467b54c8a96fb6b7bc8ee7237@ranteer.com</a>>=
<br>
<br>
I am reassembling the car; it was never running and driving under my owners=
hip.<br>
<br>
I noticed today as I'm attempting to get the car running and driving fo=
r the first time that there is play in the clutch in the rod that goes into=
the master.<br>
<br>
It is threaded about as far out as it can go.<br>
<br>
It occurred to me that I could thread a rod so that there is virtually no p=
lay, and that the as soon as you press the clutch pedal it will move inside=
the master.=C2=A0 It also occurred to me that that might be a bad idea. Ca=
n/should I do that?=C2=A0 or will it push too far inside the master and cau=
se additional problems?=C2=A0 It isn't more than about ?" of play =
or so<br>
-------------- next part --------------<br>
An HTML attachment was scrubbed...<br>
URL: <<a href=3D"http://autox.team.net/pipermail/mgs/attachments/2023102=
9/195484c1/attachment-0001.htm" rel=3D"noreferrer" target=3D"_blank">http:/=
/autox.team.net/pipermail/mgs/attachments/20231029/195484c1/attachment-0001=
.htm</a>><br>
<br>
------------------------------<br>
<br>
Message: 2<br>
Date: Mon, 30 Oct 2023 08:18:53 +0000<br>
From: Paul Hunt <<a href=3D"mailto:paulbhunt73@gmail.com"; target=3D"_bla=
nk">paulbhunt73@gmail.com</a>><br>
To: <a href=3D"mailto:mgs@autox.team.net"; target=3D"_blank">mgs@autox.team.=
net</a><br>
Subject: Re: [Mgs] 58 mga<br>
l.com" target=3D"_blank">3f0cd945-7962-4191-9216-445ada16c45b@gmail.com</a>=
><br>
d"<br>
<br>
What's the biting point like?? If that's fine then leave it alone.<=
br>
<br>
I don't know the MGA master but on the MGB the master piston comes back=
<br>
to the circlip in the bore and positions the resting position of the <br>
pedal, and that determines how much 'throw' you have at the pedal, =
the <br>
slave cylinder and hence the release bearing.? Slop in the linkage at <br>
the pedal puts it closer to the floor and results in less slave piston <br>
movement and hence a lower biting point.? The same is not true of the <br>
linkage at the clutch end as a spring inside the slave cylinder pushes <br>
the piston out to take up all the play at that end, and more importantly <b=
r>
to compensate for the graphite release bearing wearing down.? The more <br>
that wears the further the piston moves out, drawing fluid down from the <b=
r>
master reservoir, so you continue to get a full stroke of the release <br>
arm.? That makes the MGB clutch system self-adjusting, and there is no <br>
scope for threaded adjustment anywhere in the system.? But as I say that <b=
r>
is the MGB not the MGA.<br>
<br>
PaulH.<br>
<br>
On 29/10/2023 23:49, dave northrup wrote:<br>
><br>
> I am reassembling the car; it was never running and driving under my <=
br>
> ownership.<br>
><br>
> I noticed today as I?m attempting to get the car running and driving <=
br>
> for the first time that there is play in the clutch in the rod that <b=
r>
> goes into the master.<br>
><br>
> It is threaded about as far out as it can go.<br>
><br>
> It occurred to me that I could thread a rod so that there is virtually=
<br>
> no play, and that the as soon as you press the clutch pedal it will <b=
r>
> move inside the master.? It also occurred to me that that might be a <=
br>
> bad idea. Can/should I do that?? or will it push too far inside the <b=
r>
> master and cause additional problems?? It isn?t more than about ?? of =
<br>
> play or so<br>
><br>
><br>
> _______________________________________________<br>
><br>
> <a href=3D"mailto:Mgs@autox.team.net"; target=3D"_blank">Mgs@autox.team=
.net</a><br>
> Donate:<a href=3D"http://www.team.net/donate.html"; rel=3D"noreferrer" =
target=3D"_blank">http://www.team.net/donate.html</a><br>
> Suggested annual donation=C2=A0 $12.75<br>
><br>
> Archive:<a href=3D"http://www.team.net/pipermail/mgs"; rel=3D"noreferre=
r" target=3D"_blank">http://www.team.net/pipermail/mgs</a>=C2=A0 <a href=3D=
"http://autox.team.net/archive"; rel=3D"noreferrer" target=3D"_blank">http:/=
/autox.team.net/archive</a><br>
><br>
> Unsubscribe:<a href=3D"http://autox.team.net/mailman/options/mgs/paulb=
hunt73@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.team.ne=
t/mailman/options/mgs/paulbhunt73@gmail.com</a><br>
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