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Re: Motorcraft Four barrel carb Idle Speed Adj... Help!


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Posted by The tractor vet on July 07, 2017 at 09:45:35 from (104.179.81.68):

In Reply to: Re: Motorcraft Four barrel carb Idle Speed Adj... Help! posted by Janicholson on July 06, 2017 at 17:53:23:

When setting one of them up first you unhook it and set the base ideal of the carb and make all adjustments to the carb , also engine curb timing is set with the vac. lines unhooked as some dist come with a dual vac. system , one side of the vac. dia. retards base line timing while the other gives advance timing . The whole system was a pain in the drain . But once you had the base lines all set then ya hooked up all the vac . lines and plugged in the SMOOG ideal and set the ideal RPM's , this usually would bring the engine RPM's up around 150-200 RPM's higher . Then once you turned the key off the solenoid would allow the carb lingage to drop back to base line to reduce dieseling . I use to work at a Ford dealership back then . BUT when nobody was looking we would set them to RUN and forget about EPA . Little tricks like a BEE BEE in the retard line change the curve inside the dist. Add a few more degrees to the base timing , jet changes in the carbs , power valve changes .


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