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When the cold advance cuts off

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Old Sep 19, 2021 | 11:03 AM
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When the cold advance cuts off

Just checking to see if this is normal:

When my engine hits the magic temp for the cold advance to shut off, I'm usually driving 55. Its like I instantaneously backed off the throttle to the point of a noticeable slowdown/lurch. Not sure if it should be this pronounced. Hopefully, a simple question.
 
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Old Sep 19, 2021 | 01:57 PM
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That's odd. I usually don't notice it at all as long as I'm not driving without giving it any throttle and it's just idling along at the high idle setting. I almost always try to let it do its thing before taking off though so I'm sure it's sufficiently warmed up for engine longevity. What are your RPMs when this happens?
 
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Old Sep 20, 2021 | 04:17 PM
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the cold idle advance is hooked up with timing advance in injector pump. the timing may be off and when the high idle turns off it retards the timing enough to feel it.
 
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Old Sep 20, 2021 | 09:10 PM
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Would you think, then, that the pump is too advanced or retarded (static)?

Or maybe the pump is just nearing the end of its life?
 
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Old Sep 21, 2021 | 07:40 AM
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Yes .could be any of those
 
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Old Sep 21, 2021 | 09:34 AM
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Originally Posted by tjc transport
Yes .could be any of those
Short. Honest. Brutal. Take my like.
 
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Old Sep 21, 2021 | 11:23 AM
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Wow, that is the most politest way anyone has ever called me an askwhole!
 
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