Subject: Re: [Mgs] XPAG question

From: "David F. Darby via Mgs" <[email-masked]>
Date: Thu, 26 Mar 2020 11:34:43 -0500

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Hello Rick,

=20

You might check for worn throttle shafts.

=20

David

=20

From: Mgs [mailto:[email-masked]] On Behalf Of Richard =
Lindsay via Mgs
Sent: Thursday, March 26, 2020 10:18 AM
To: [email-masked] List
Subject: [Mgs] XPAG question

=20

Hello friends,

   We're house-bound here in Houston with a stay-at-home order in place. =
My chores are done and Nancy's SUV is 'clayed' and waxed. It looks =
as-new, which is pretty good for any SUV.

   This morning, after finishing the Toyota, I went back to work on my =
'53 MG TD. It started right up and ran up to a smooth 3000rpm. After =
that, the choke control immediately went in a bit leaving the engine to =
idle at 2000rpm, with the choke lightly applied. After warm, and with =
the choke pushed full in, the idle dropped to about 900rpm, with a few =
misses preventing a totally smooth idle. And those words begin my =
question.

  The engine stumbles when given a little 'wellie' and after gaining =
engine speed, it runs quite unevenly. No amount of coaxing will get it =
over 3000rpm. So, what's wrong?! Timing is set properly.

   The stumble is characteristic of leaning out, as when the carb =
dampers are empty. And overly lean charge is indicated by the fact that =
when cold, with enrichment, to engine will rev to 3000rpm easily.=20

   I'm going to lower the jets another couple of 'flats' to see if that =
helps. In the mean time I ask: What else might I have missed?

=20

Rick

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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hello Rick,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>You might check for worn throttle shafts.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>David<o:p></o:p></span></p><p class=3DMsoNormal><a =
name=3D"_MailEndCompose"><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></a></p><div =
style=3D'border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in =
4.0pt'><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Mgs [mailto:[email-masked]] <b>On Behalf Of </b>Richard =
Lindsay via Mgs<br><b>Sent:</b> Thursday, March 26, 2020 10:18 =
AM<br><b>To:</b> [email-masked] List<br><b>Subject:</b> [Mgs] XPAG =
question<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal>Hello =
friends,<o:p></o:p></p><div><p class=3DMsoNormal>&nbsp; &nbsp;We're =
house-bound here in Houston with a stay-at-home order in place. My =
chores are done and Nancy's SUV is 'clayed' and waxed. It looks as-new, =
which is pretty good for any SUV.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif"'>&nbsp; &nbsp;This morning, =
after finishing the Toyota, I went back to work on my '53 MG TD. It =
started right up and ran up to a smooth 3000rpm. After that, the choke =
control immediately went in a bit leaving the engine to idle at 2000rpm, =
with the choke lightly applied. After warm, and with the choke pushed =
full in, the idle dropped to about 900rpm, with a few misses preventing =
a totally smooth idle. And those words begin my =
question.</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif"'>&nbsp; The engine stumbles =
when given a little 'wellie' and after gaining engine speed, it runs =
quite unevenly. No amount of coaxing will get it over 3000rpm. So, =
what's wrong?! Timing is set =
properly.</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif"'>&nbsp; &nbsp;The stumble is =
characteristic of leaning out, as when the carb dampers are empty. And =
overly lean charge is indicated by the fact that when cold, with =
enrichment, to engine will rev to 3000rpm =
easily.&nbsp;</span><o:p></o:p></p></div><div><p class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif"'>&nbsp; &nbsp;I'm going to =
lower the jets another couple of 'flats' to see if that helps. In the =
mean time I ask: What else might I have =
missed?</span><o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif"'>Rick</span><o:p></o:p></p></di=
v></div></div></div></body></html>
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From: "Osborne, Paul via Mgs" <[email-masked]>
Date: Thu, 26 Mar 2020 16:49:59 +0000

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Rick,  Lean, maybe. What do the plugs look like?  If I understand here, sim=
ply the engine will not rev over 3000 even it the throttle is wide open.

paul

On Mar 26, 2020, at 11:17 AM, Richard Lindsay via Mgs <[email-masked]<m=
ailto:[email-masked]>> wrote:

Hello friends,
   We're house-bound here in Houston with a stay-at-home order in place. My=
 chores are done and Nancy's SUV is 'clayed' and waxed. It looks as-new, wh=
ich is pretty good for any SUV.
   This morning, after finishing the Toyota, I went back to work on my '53 =
MG TD. It started right up and ran up to a smooth 3000rpm. After that, the =
choke control immediately went in a bit leaving the engine to idle at 2000r=
pm, with the choke lightly applied. After warm, and with the choke pushed f=
ull in, the idle dropped to about 900rpm, with a few misses preventing a to=
tally smooth idle. And those words begin my question.
  The engine stumbles when given a little 'wellie' and after gaining engine=
 speed, it runs quite unevenly. No amount of coaxing will get it over 3000r=
pm. So, what's wrong?! Timing is set properly.
   The stumble is characteristic of leaning out, as when the carb dampers a=
re empty. And overly lean charge is indicated by the fact that when cold, w=
ith enrichment, to engine will rev to 3000rpm easily.
   I'm going to lower the jets another couple of 'flats' to see if that hel=
ps. In the mean time I ask: What else might I have missed?

Rick

donate.html&d=3DDwICAg&c=3Dkbmfwr1Yojg42sGEpaQh5ofMHBeTl9EI2eaqQZhHbOU&r=3D=
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Paul Osborne
Department of Electrical and Computer Eng
University of Rochester
201 Hopeman Building RC
Rochester NY 14627
   585-275-5226

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<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"=
</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space;" class=3D"">
Rick, &nbsp;Lean, maybe. What do the plugs look like? &nbsp;If I understand=
 here, simply the engine will not rev over 3000 even it the throttle is wid=
e open.
<div class=3D""><br class=3D"">
</div>
<div class=3D"">paul</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D""><br class=3D"">
<div>
<blockquote type=3D"cite" class=3D"">
<div class=3D"">On Mar 26, 2020, at 11:17 AM, Richard Lindsay via Mgs &lt;<=
a href=3D"mailto:[email-masked]" class=3D"">[email-masked]</a>&gt; =
wrote:</div>
<br class=3D"Apple-interchange-newline">
<div class=3D"">
<div dir=3D"auto" class=3D"">Hello friends,
<div dir=3D"auto" class=3D"">&nbsp; &nbsp;We're house-bound here in Houston=
 with a stay-at-home order in place. My chores are done and Nancy's SUV is =
'clayed' and waxed. It looks as-new, which is pretty good for any SUV.</div=
<div dir=3D"auto" class=3D""><span style=3D"font-family:sans-serif" class=
=3D"">&nbsp; &nbsp;This morning, after finishing the Toyota, I went back to=
 work on my '53 MG TD. It started right up and ran up to a smooth 3000rpm. =
After that, the choke control immediately went in a
 bit leaving the engine to idle at 2000rpm, with the choke lightly applied.=
 After warm, and with the choke pushed full in, the idle dropped to about 9=
00rpm, with a few misses preventing a totally smooth idle. And those words =
begin my question.</span><br class=3D"">
</div>
<div dir=3D"auto" class=3D""><span style=3D"font-family:sans-serif" class=
=3D"">&nbsp; The engine stumbles when given a little 'wellie' and after gai=
ning engine speed, it runs quite unevenly. No amount of coaxing will get it=
 over 3000rpm. So, what's wrong?! Timing is set
 properly.</span></div>
<div dir=3D"auto" class=3D""><span style=3D"font-family:sans-serif" class=
=3D"">&nbsp; &nbsp;The stumble is characteristic of leaning out, as when th=
e carb dampers are empty. And overly lean charge is indicated by the fact t=
hat when cold, with enrichment, to engine will rev to
 3000rpm easily.&nbsp;</span></div>
<div dir=3D"auto" class=3D""><span style=3D"font-family:sans-serif" class=
=3D"">&nbsp; &nbsp;I'm going to lower the jets another couple of 'flats' to=
 see if that helps. In the mean time I ask: What else might I have missed?<=
/span></div>
<div dir=3D"auto" class=3D""><span style=3D"font-family:sans-serif" class=
=3D""><br class=3D"">
</span></div>
<div dir=3D"auto" class=3D""><span style=3D"font-family:sans-serif" class=
=3D"">Rick</span></div>
</div>
_______________________________________________<br class=3D"">
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webkit-line-break: after-white-space;">
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webkit-line-break: after-white-space;">
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<blockquote cite=3D"mid:[email-masked]=
u" type=3D"cite" class=3D"" style=3D"orphans: 2; widows: 2;">
<div class=3D"">
<div class=3D"">
<div class=3D""><span class=3D"Apple-style-span" style=3D"border-collapse: =
separate; font-variant-ligatures: normal; font-variant-position: normal; fo=
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tyle=3D"border-collapse: separate; font-variant-ligatures: normal; font-var=
iant-position: normal; font-variant-numeric: normal; font-variant-alternate=
s: normal; font-variant-east-asian: normal; line-height: normal;">
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<div class=3D"">
<div class=3D"">
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 12pt; font-size: 12pt;">Pau=
l Osborne<br class=3D"">
Department of Electrical and Computer Eng<br class=3D"">
University of Rochester&nbsp;<br class=3D"">
201 Hopeman Building RC<br class=3D"">
Rochester NY 14627<br class=3D"">
</p>
</div>
</div>
</div>
</span></span></div>
</div>
</div>
</blockquote>
<div class=3D"" style=3D"orphans: 2; widows: 2;"><span class=3D"Apple-style=
-span" style=3D"font-size: 16px;">&nbsp; &nbsp;585-275-5226</span><span cla=
ss=3D"Apple-tab-span" style=3D"white-space: pre;">
</span></div>
<div class=3D""><br class=3D"">
</div>
</div>
</span></div>
</div>
</div>
</div>
</div>
</div>
<div class=3D""><br class=3D"">
</div>
</div>
<br class=3D"Apple-interchange-newline">
<br class=3D"Apple-interchange-newline">
</div>
<br class=3D"">
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[email-masked]

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