[Tigers] The latest problem: Surging

[Rob Hogan]

Isn't idle surging typically from a carburetor low float setting?

On Sat, Aug 31, 2024 at 11:45 AM Ron Fraser <rfraser at bluefrog.com> wrote:

> Stu
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> Always difficult to troubleshoot remotely.
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> You may have to do standard checks on all systems – air, fuel and spark
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> Alcohol in the fuel can tear up hoses and gaskets
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> Check to make sure fuel filter is OK
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> Check for vacuum leaks
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> My 1st thought – the fuel level is high
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> Check the float level and check for any debris in the float bowl
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> Remove the air filter and idle engine to see if it is an air flow problem.
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> Hope this helps
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> Ron Fraser
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> *From:* Tigers <tigers-bounces at autox.team.net> *On Behalf Of *Stu
> *Sent:* Saturday, August 31, 2024 9:57 AM
> *To:* Tiger Net <Tigers at autox.team.net>
> *Subject:* [Tigers] The latest problem: Surging
>
>
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> Ok, so I got the vacuum advance sorted and reset the timing, etc.  But now
> there's another issue.
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> 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.
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> 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?
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> https://www.dropbox.com/scl/fo/0613ys0iegdndjhnjt5a8/AIcza8ouXqEsp57qLWSlZOY?rlkey=s9h2q3sal042y9z3t5oav2uwt&dl=0
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