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Author Topic:   Cold idle issue

Posts: 1443
From: San Lorenzo, CA, USA
Registered: Aug 2001

posted 12-11-2002 04:25 PM     Click Here to See the Profile for rockafellz   Click Here to Email rockafellz     Edit/Delete Message   Reply w/Quote
Hey Guys,

This has been an slight issue since we've put the motor in. When starting the engine cold for the day, I have to hold the rpms to 1300-1500rpm for at least 2 minutes. Then I can gradually remove my foot from idle. When warm it idles at 1000-1200rpm in park. I am not utlizing the manual choke at this time.

Is there reason for concern here? Or is this how a medium/wild motor operates? I've taken a propane tank with an open valve to the entire intake and carb areas and no idle spikes. It's timed at 34* @ 3000rpm. No vacuum advance.

Thanks in advance.


1966 Ford Mustang 2+2
Mine - Restomod in Progress

1966 Ford Mustang Coupe
Dad's - Original Unrestored

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Scott (69Mach)

Posts: 787
From: Walnut Creek, CA USA
Registered: Jun 99

posted 12-11-2002 05:58 PM     Click Here to See the Profile for Scott (69Mach)   Click Here to Email Scott (69Mach)     Edit/Delete Message   Reply w/Quote
Got the same thing going on. It's worse in colder weather.

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Posts: 9489
From: Sonoma,CA,USA
Registered: Mar 2000

posted 12-11-2002 10:43 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
You guys can richen your idle a little for the wintertime. Another 1/2 turn CCW should help and raise you idle speed just a touch too. You shouldn't need a choke in our climate. Just pump the gas to prime it and run.


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