View topic - Timing question, '23 Touring

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PostPosted: Wed Sep 05, 2018 11:07 pm 
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Joined: Wed Dec 28, 2016 2:11 pm
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A modestly pesky problem I've had on pleasure drives has been that about 3-4 times now, after I'm at full operating temp (but not overheating) my idle will drop so low it nearly dies. I don't wait for it to die, I'll hand throttle it up - but the status is a noticably slower idle vs when the car first starts, and in the earlier part of the drive. And I'd say this doesn't happen on every drive, hmmm.
So I checked - for the first time - my point gap. It was .24. Book O' Info sez .20 so I carefully reset it. What result would a too-wide point gap create? Relevant to a slow idle?
Texas Jim

PS my engine has a happy op temp, and a happy oil pressure.


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PostPosted: Thu Sep 06, 2018 1:05 am 
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Joined: Wed Dec 28, 2011 8:08 pm
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Jim, it will probably make no difference to your idle. It is actually normal for the idle to get lower when it warms up. If it is TOO low raise it up a little. All adjustments to carb should be done with a warm engine.


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PostPosted: Thu Sep 06, 2018 11:20 pm 
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Thanks Doug, I tend to worry too much !


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PostPosted: Mon Sep 10, 2018 2:02 am 
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Joined: Thu Dec 29, 2011 7:07 pm
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As your vacuum fuel pump empties and fills it will change idle due to open and closed vacuum, just like a vacuum leak will speed idle up, then plug it causes it to slow down.

Dave


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