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I should have added this info at the start: Stock 260, original carb,
original points type ignition.
Things I've tried since my original message:
Tightened the nuts on the carb mounting studs, and the screws that hold the
top on, nothing was loose
All the electrical connections seem tight, no corrosion.
Let the car warm up again, and it started doing it a little.
The old carb cleaner trick: I sprayed carb cleaner all over anything that
might have a vacuum leak,carb base, hoses, and so on... nothing happened
With the timing light connected, I watched the advance as a couple dips
happened... no change, timing was right where I left it, and I could not
detect any missing flashes during the dip.
And, after a few minutes, it stopped doing it.
So that's it for today. Tomorrow is busy, Monday I'll take it for a drive
and see if it's any different, or if any more clues appear.
On Sat, Aug 31, 2024 at 4:54=E2=80=AFPM M Lafayette via Tigers <
tigers@autox.team.net> wrote:
> I had the same symptoms years ago. Leak in the vaccuum going to the PCV
> valve. I'm betting that's the issue. Or possibly a bad PCV valve, but I
> still think it's a bad line going to the valve.
> Mark L
>
> In a message dated 8/31/2024 3:49:03 PM Eastern Daylight Time,
> tigers@autox.team.net writes:
>
>
> I think a low float condition would not let it drive fine.
>
>
>
> Many conditions can contribute to idle surging so it starts with a proces=
s
> of elimination.
>
>
>
> Systems need to be checked =E2=80=93 air, fuel and spark =E2=80=93 loose =
wire connection,
> vacuum
>
>
>
> Ron Fraser
>
>
>
>
>
>
>
> *From:* Rob Hogan <robertdhogan@gmail.com>
> *Sent:* Saturday, August 31, 2024 3:18 PM
> *To:* Ron Fraser <rfraser@bluefrog.com>
> *Cc:* Stu <sabre2tgr@gmail.com>; Tiger Net <Tigers@autox.team.net>
> *Subject:* Re: [Tigers] The latest problem: Surging
>
>
>
> Isn't idle surging typically from a carburetor low float setting?
>
>
>
> On Sat, Aug 31, 2024 at 11:45=E2=80=AFAM Ron Fraser <rfraser@bluefrog.com=
> wrote:
>
> Stu
>
>
>
> Always difficult to troubleshoot remotely.
>
>
>
> You may have to do standard checks on all systems =E2=80=93 air, fuel and=
spark
>
> Alcohol in the fuel can tear up hoses and gaskets
>
> Check to make sure fuel filter is OK
>
> Check for vacuum leaks
>
>
>
> My 1st thought =E2=80=93 the fuel level is high
>
> Check the float level and check for any debris in the float bowl
>
>
>
> Remove the air filter and idle engine to see if it is an air flow problem=
.
>
>
>
> Hope this helps
>
> Ron Fraser
>
>
>
>
>
> *From:* Tigers <tigers-bounces@autox.team.net> *On Behalf Of *Stu
> *Sent:* Saturday, August 31, 2024 9:57 AM
> *To:* Tiger Net <Tigers@autox.team.net>
> *Subject:* [Tigers] The latest problem: Surging
>
>
>
> Ok, so I got the vacuum advance sorted and reset the timing, etc. But no=
w
> there's another issue.
>
>
>
> The car starts and warms up normally, choke opening, temperature gauge
> coming up to the thermostat temp, etc. But then it starts surging at idle=
.
> Accelerating, driving both seem fine. But when it goes back to idle,
> waiting at a stoplight or something, it starts having these little dips,
> which soon become larger dips, to the point where it stops. It restarts
> right away, then does it again. At a stoplight I have to left foot brake
> so that I can keep my foot on the throttle to keep it alive.
>
>
>
> Here's a video I shot in the garage as it started to do it after warming
> up. Anybody seen this before or... cured it?
>
>
>
>
> https://www.dropbox.com/scl/fo/0613ys0iegdndjhnjt5a8/AIcza8ouXqEsp57qLWSl=
ZOY?rlkey=3Ds9h2q3sal042y9z3t5oav2uwt&dl=3D0
>
> _______________________________________________
>
> tigers@autox.team.net
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/tigers
> http://autox.team.net/archive
>
> Unsubscribe:
> http://autox.team.net/mailman/options/tigers/robertdhogan@gmail.com
>
> _______________________________________________
>
> tigers@autox.team.net
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/tigers
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>
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>
>
> _______________________________________________
>
> tigers@autox.team.net
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/tigers
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>
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>
>
>
--00000000000064cac60621022a86
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-size:small">I s=
hould have added this info at the start:=C2=A0 Stock 260, original carb, or=
iginal points type ignition.</div><div class=3D"gmail_default" style=3D"fon=
t-size:small"><br></div><div class=3D"gmail_default" style=3D"font-size:sma=
ll">Things I've tried since my original message:</div><div class=3D"gma=
il_default" style=3D"font-size:small"><br></div><div class=3D"gmail_default=
" style=3D"font-size:small">Tightened the nuts on the carb mounting studs, =
and the screws that hold the top on, nothing was loose</div><div class=3D"g=
mail_default" style=3D"font-size:small"><br></div><div class=3D"gmail_defau=
lt" style=3D"font-size:small">All the electrical connections seem tight, no=
corrosion.</div><div class=3D"gmail_default" style=3D"font-size:small"><br=
></div><div class=3D"gmail_default" style=3D"font-size:small">Let the car w=
arm up again, and it started doing it a little.</div><div class=3D"gmail_de=
fault" style=3D"font-size:small"><br></div><div class=3D"gmail_default" sty=
le=3D"font-size:small">The old carb cleaner trick:=C2=A0 I sprayed carb cle=
aner all over anything that might have a vacuum leak,carb base, hoses, and =
so on...=C2=A0 nothing happened</div><div class=3D"gmail_default" style=3D"=
font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-size:=
small">With the timing light connected, I watched the advance as a couple d=
ips happened... no change, timing was right where I left it, and I could no=
t detect any missing flashes during the dip.</div><div class=3D"gmail_defau=
lt" style=3D"font-size:small"><br></div><div class=3D"gmail_default" style=
=3D"font-size:small">And, after a few minutes, it stopped doing it.</div><d=
iv class=3D"gmail_default" style=3D"font-size:small"><br></div><div class=
=3D"gmail_default" style=3D"font-size:small">So that's it for today.=C2=
=A0 Tomorrow is busy, Monday I'll take it for a drive and see if it'=
;s any different, or if any more clues appear.</div></div><br><div class=3D=
"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, Aug 31, 2024 at=
4:54=E2=80=AFPM M Lafayette via Tigers <<a href=3D"mailto:tigers@autox.=
team.net" target=3D"_blank">tigers@autox.team.net</a>> wrote:<br></div><=
blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-l=
eft:1px solid rgb(204,204,204);padding-left:1ex"><div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:14pt;color:r=
gb(0,0,0)"><span style=3D"color:rgb(0,0,0);font-style:normal;font-weight:bo=
ld">I had the same symptoms years ago.=C2=A0 Leak in the vaccuum going to t=
he PCV valve.=C2=A0 I'm betting that's the issue.=C2=A0 Or possibly=
a bad PCV valve, but I still think it's=C2=A0 a bad line going to the =
valve.=C2=A0<br></span></div>
<div style=3D"font-family:arial,helvetica,sans-serif;font-size:14pt;color:r=
gb(0,0,0)"><span style=3D"color:rgb(0,0,0);font-style:normal;font-weight:bo=
ld">Mark L</span></div>
<br>In a message dated 8/31/2024 3:49:03 PM Eastern Daylight Time, <a href=
=3D"mailto:tigers@autox.team.net"; target=3D"_blank">tigers@autox.team.net</=
a> writes:
<div>=C2=A0</div>
<div>
<blockquote style=3D"padding-left:5px;margin-left:5px;border-left:2px solid=
blue">
<div id=3D"m_8009456528955968275m_8685979321128247961yiv8325011580">
<div>
<div>
<p>I think a low float condition would not let it drive fine.</p>
<p>=C2=A0</p>
<p>Many conditions can contribute to idle surging so it starts with a proce=
ss of elimination.</p>
<p>=C2=A0</p>
<p>Systems need to be checked =E2=80=93 air, fuel and spark =E2=80=93 loose=
wire connection, vacuum</p>
<p>=C2=A0</p>
<p>Ron Fraser</p>
<p>=C2=A0</p>
<p>=C2=A0</p>
<p>=C2=A0</p>
<div id=3D"m_8009456528955968275m_8685979321128247961yiv8325011580yqt08769"=
>
<p><strong>From:</strong> Rob Hogan <<a href=3D"mailto:robertdhogan@gmai=
l.com" target=3D"_blank">robertdhogan@gmail.com</a>> <br clear=3D"none">=
<strong>Sent:</strong> Saturday, August 31, 2024 3:18 PM<br clear=3D"none">=
<strong>To:</strong> Ron Fraser <<a href=3D"mailto:rfraser@bluefrog.com"=
target=3D"_blank">rfraser@bluefrog.com</a>><br clear=3D"none"><strong>C=
c:</strong> Stu <<a href=3D"mailto:sabre2tgr@gmail.com"; target=3D"_blank=
">sabre2tgr@gmail.com</a>>; Tiger Net <<a href=3D"mailto:Tigers@autox=
.team.net" target=3D"_blank">Tigers@autox.team.net</a>><br clear=3D"none=
"><strong>Subject:</strong> Re: [Tigers] The latest problem: Surging</p>
<p>=C2=A0</p>
<div>
<div>
<p><span style=3D"font-size:12pt;font-family:sans-serif">Isn't idle sur=
ging typically from a carburetor low float setting?</span></p>
</div>
</div>
<p>=C2=A0</p>
<div>
<div>
<p>On Sat, Aug 31, 2024 at 11:45=E2=80=AFAM Ron Fraser <<a href=3D"mailt=
o:rfraser@bluefrog.com" rel=3D"nofollow noopener noreferrer" shape=3D"rect"=
target=3D"_blank">rfraser@bluefrog.com</a>> wrote:</p>
</div>
<blockquote style=3D"border-top:none;border-right:none;border-bottom:none;b=
order-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin-left:4=
.8pt;margin-right:0in">
<div>
<div>
<div>
<p>Stu</p>
<p>=C2=A0</p>
<p>Always difficult to troubleshoot remotely.</p>
<p>=C2=A0</p>
<p>You may have to do standard checks on all systems =E2=80=93 air, fuel an=
d spark</p>
<p>Alcohol in the fuel can tear up hoses and gaskets</p>
<p>Check to make sure fuel filter is OK</p>
<p>Check for vacuum leaks</p>
<p>=C2=A0</p>
<p>My 1<sup>st</sup> thought =E2=80=93 the fuel level is high</p>
<p>Check the float level and check for any debris in the float bowl</p>
<p>=C2=A0</p>
<p>Remove the air filter and idle engine to see if it is an air flow proble=
m.</p>
<p>=C2=A0</p>
<p>Hope this helps</p>
<p>Ron Fraser</p>
<p>=C2=A0</p>
<p>=C2=A0</p>
<p><strong>From:</strong> Tigers <<a href=3D"mailto:tigers-bounces@autox=
.team.net" rel=3D"nofollow noopener noreferrer" shape=3D"rect" target=3D"_b=
lank">tigers-bounces@autox.team.net</a>> <strong>On Behalf Of </strong>S=
tu<br clear=3D"none"><strong>Sent:</strong> Saturday, August 31, 2024 9:57 =
AM<br clear=3D"none"><strong>To:</strong> Tiger Net <<a href=3D"mailto:T=
igers@autox.team.net" rel=3D"nofollow noopener noreferrer" shape=3D"rect" t=
arget=3D"_blank">Tigers@autox.team.net</a>><br clear=3D"none"><strong>Su=
bject:</strong> [Tigers] The latest problem: Surging</p>
<p>=C2=A0</p>
<div>
<div>
<div>
<p><span style=3D"font-size:12pt">Ok, so I got the vacuum advance sorted an=
d reset the timing, etc.=C2=A0 But now there's another issue.</span></p=
>
</div>
<div>
<p><span style=3D"font-size:12pt">=C2=A0</span></p>
</div>
<div>
<p><span style=3D"font-size:12pt">The car starts and warms up normally, cho=
ke opening, temperature gauge coming up to the thermostat temp, etc. But th=
en it starts surging at idle.=C2=A0 Accelerating, driving both seem fine.=
=C2=A0 But when it goes back to idle, waiting at a stoplight or something, =
it starts having these little dips, which soon become larger dips, to the p=
oint where it stops.=C2=A0 It restarts right away, then does it again.=C2=
=A0 At a stoplight I have to left foot brake so that I can keep my foot on =
the throttle to keep it alive.=C2=A0 =C2=A0</span></p>
</div>
<div>
<p><span style=3D"font-size:12pt">=C2=A0</span></p>
</div>
<div>
<p><span style=3D"font-size:12pt">Here's a video I shot in the garage a=
s it started to do it after warming up.=C2=A0 Anybody seen this before or..=
. cured it?</span></p>
</div>
<div>
<p><span style=3D"font-size:12pt">=C2=A0</span></p>
</div>
<div>
<p><a href=3D"https://www.dropbox.com/scl/fo/0613ys0iegdndjhnjt5a8/AIcza8ou=
XqEsp57qLWSlZOY?rlkey=3Ds9h2q3sal042y9z3t5oav2uwt&dl=3D0" rel=3D"nofoll=
ow noopener noreferrer" shape=3D"rect" target=3D"_blank">https://www.dropbo=
x.com/scl/fo/0613ys0iegdndjhnjt5a8/AIcza8ouXqEsp57qLWSlZOY?rlkey=3Ds9h2q3sa=
l042y9z3t5oav2uwt&dl=3D0</a></p>
</div>
</div>
</div>
</div>
</div>
<p style=3D"margin-bottom:12pt">___________________________________________=
____<br clear=3D"none"><br clear=3D"none"><a href=3D"mailto:tigers@autox.te=
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</div>
</blockquote>
</div>
</div>
</div>
</div>
</div>
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