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throttle stick??

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Old Mar 8, 2010 | 10:57 AM
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Default throttle stick??

I narrowed it down to the new spring i have on the carb throttle return plate ( possible cause) ....when I touch it the idle comes down. I have a Holley 2818 carb and notice the plate the spring hooks to has 2 separate hole locations, wonder if this could change it a bit or should I remove the spring and pre- expand it a couple of times?


thanks
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Old Mar 8, 2010 | 11:10 AM
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Default Spring Woes

Took project L36 out for a test drive Friday and she stuck at 3500 RPMs with the stock spring. "Scary Man" Made a B-line to my FLAPS got a HELP spring and cut it to lengtrh. Work like a charm now!

Good Luck
Earl
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Old Mar 8, 2010 | 11:14 AM
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Safety if first on this. Experiment with different springs (hardware stores have good selections) and see what change occures. Double check for binding or catching on some other object. Don't forget about the amount of tension required to hold a steady speed. It could become uncomfortable to drive for any long period of time. Dennis
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Old Mar 8, 2010 | 11:56 AM
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Blame it on your floor mat
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Old Mar 8, 2010 | 12:31 PM
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lol...floor mat is a non issue since i signed the Toyota waiver!!...

It is pretty scary when your expecting one thing and something else occurs...lucky I was quick on the clutch or else i was going to slam into my house!

I'll try some different springs to see how it changes the rate of return..

thanks guys!
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Old Mar 8, 2010 | 01:37 PM
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Not the floor mats or pedal assembly. Probably corrosion or a glitch in the "software." I'll bet it didn't even set any engine codes, did it?

Personally, I've seen my PC do too many weird things..., so why should a car be any different? The computer in the car should be even worst with the environmental issues and vibration it is exposed to. No way I would trust my life to one. None of my cars are "drive-by-wire." Can the drive-by-wire Vettes be far behind?
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Old Mar 8, 2010 | 03:05 PM
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Originally Posted by toddalin
Can the drive-by-wire Vettes be far behind?
No, they're out there already.
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Old Mar 8, 2010 | 05:23 PM
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Originally Posted by JohnZ
No, they're out there already.
Actually, I meant, problems with the drive-by-wire Vettes.
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Old Mar 9, 2010 | 01:28 PM
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Default return spring on carb

On my 63 swc I have 2 springs on the plate with 2 holes. They are balanced to give proper tension. Try switching various springs. good luck Abe G
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Old Mar 9, 2010 | 03:20 PM
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A few other things to check:
Throttle shaft loose in carb
Warped base plate (too much torque on the nuts)
Secondary linkage.
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Old Mar 9, 2010 | 05:56 PM
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I've seen throttle stick because of the oil pressure copper line interfering with the linkage. One area to double check to ensure there's enough clearance during the full travel of the linkage.
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Old Mar 9, 2010 | 07:00 PM
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2 springs? That would certainly would add some tension...I'll add that to some trials.

Sticking has happened pretty much at 1800 rpm or so............just wounder if this has much to do with the spring not completing its full contraction...I'll have to get out to it on the weekend...another toyota prius went bonkers today...maybe I'll make the news too and get GM to recall all 64's...

thanks for the info!
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Old Mar 9, 2010 | 07:46 PM
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Originally Posted by count
2 springs? That would certainly would add some tension...I'll add that to some trials.

...

thanks for the info!


Two springs is pretty standard whether they be at the carb and/or along the linkage and required by NHRA rules.
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