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Old 04-18-2014, 11:38 AM
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Edelbrock carb not returning to idle?

Have a 600 com Edelbrock 1405 carb I am having some issues with. Any time I gradually bring up the rpms and then take my foot off of the gas pedal, it stays at whatever rpm it was at before taking my foot off the gas. I can then tap the gas pedal and the motor returns to idle. It is manual choke(which I have disabled and wired the linkage to keep the butterfly open). My question is what would cause this to happen, something internal? The only other thing I can think is that my return spring(spring that pulls the throttle against the idle adjusting screw when you take your foot off the gas) is not strong enough. Any ideas?
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Old 04-20-2014, 10:48 AM
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incorrect alignment of throttle cable , on the pass side there is a clearance of .040 on the throttle shaft tang , my last idea would be slop in the throttle shaft . Good luck
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Old 04-29-2014, 02:48 PM
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Could be a weak spring or the throttle plates could be hanging on some kind of build-up on the throttlebody plate. it could also be what hotstuff said above.
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Old 05-15-2014, 06:54 PM
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Thanks guys, putting on a stronger idle return spring fixed it.
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Old 05-15-2014, 06:54 PM
 
 
 
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