Fast Idle Stop Solenoids

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eschroeder1

eschroeder1

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Tech question....Did 71 Demon 340's equipt with a 4 bbl thermoquad have fast idle stop solenoids mounted on the intake?
 
'64 Cuda said:
If he doesn't want it I might be interested in it.
Click to expand...
Yes Me three, i've had adds on this and several other site looking for a original one with the DR #'s, heres a pic. BTW they are readily available if you don't mind the repop without the #.
 

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Where do you buy the repops? I haven't really been looking. Just want to get something because I anticipate some problems with the gas we have these days & high temps during the summer. I could make just about anything work. If somebody needs this because it's number matching or something they're welcome to step ahead of me in line.
 
Even though these are commonly known as an "idle solenoid", they are correctly referred to as an "anti dieseling solenoid" or "idle stop solenoid". Their purpose is not to raise the idle, but to close the carburetor throttle completely when the key is released and prevent engine run on. The reason they came into being is from all of the emmisions equipment, heavy loads like A/C compressors, high output alternators that all require a higher idle speed to stay running. That idle was so high that something was needed to allow the carburetor's butterflies to close completely thereby eliminating engine run on. They were never designed to push the carburetor open on their own. Only to hold it in place until the key was turned off.

http://www.allinfoaboutautorepairs.com/index.php?page=2409
 
Very well explained StrokerScamp! This one works just like new............

100_1870.jpg
 
StrokerScamp said:
Even though these are commonly known as an "idle solenoid", they are correctly referred to as an "anti dieseling solenoid" or "idle stop solenoid". Their purpose is not to raise the idle, but to close the carburetor throttle completely when the key is released and prevent engine run on. The reason they came into being is from all of the emmisions equipment, heavy loads like A/C compressors, high output alternators that all require a higher idle speed to stay running. That idle was so high that something was needed to allow the carburetor's butterflies to close completely thereby eliminating engine run on. They were never designed to push the carburetor open on their own. Only to hold it in place until the key was turned off.

http://www.allinfoaboutautorepairs.com/index.php?page=2409
Click to expand...

That's exactly what I was wanting one for. Hoping to use it (if necessary) to prevent run-on with crap fuel. Of course, the simple thing would be to pop the clutch in gear. :-D
 
dmoore said:
Very well explained StrokerScamp! This one works just like new............

100_1870.jpg
Click to expand...
I had one of the 72 style like in the pic and was going to use it, but since its not completely correct for a 71 and theres a stunning just finished petty blue 1972 demon 340 in Canada that needed one its no longer in my collection.
 
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