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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

rough cold starts

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Old Aug 28, 2005 | 10:46 PM
  #1  
dorkpunch's Avatar
dorkpunch
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rough cold starts

any suggestions? starting her up if shes been sittin awhile is a challange, takes three or four tries of pumping/cranking/feathering the pedal and having her die before she will finally catch. Choke (manual) doesnt seem to make a difference if it is on or off. '70 360 f-250 cs. Thanks all!
 
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Old Aug 28, 2005 | 10:47 PM
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set the fast idle to about 1,500 rpm
 
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Old Aug 28, 2005 | 11:07 PM
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Mine did the same thing but rebuilding the carb and advancing the timing helped a lot.
 
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Old Aug 28, 2005 | 11:14 PM
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I rebuilt the carb and that helped some- still have the rough cold start and once its warm and sits for an hour it tends to flood- hold the pedaly down and crank for 10 secs and she fires right up. havent played with the timing yet though....
 
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Old Aug 29, 2005 | 07:51 AM
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youve got fuel leaking from the carb somewhere. recheck alll your bolts on the carb, you probably have a loose one or two . especially check the accellerator pump bolts.
 
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Old Aug 29, 2005 | 09:03 AM
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When you rebuilt your carburator, did you soak the carb parts in a cleaner for a few hours?

Replace the carburator.
 
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Old Sep 10, 2005 | 02:59 PM
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ahh never mind... I re read the post more carefully/ i think its leaking out of the floatbowl, possibly a combination of that and/or mechanical fuel pump maybe starting to go?
you probably have it fixed already...
 

Last edited by Franken-ford; Sep 10, 2005 at 03:04 PM. Reason: mis read the post / gave wrong idea
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