looking for a dash pot
May 22nd, 2008, 09:36 PM
#2
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Location: Austin, Texas
Posts: 3,151
Find a good used one on any number of salvage yard Olds motors and refinish it. Make sure and get the nut that serves as a jamb nut against the bracket. Do you still have the bracket that the dashpot mounts on?
May 23rd, 2008, 04:57 AM
#3
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Join Date: May 2008
Posts: 5
yes, the old one is still on the car. I have ried some local salvage yards with no success. I am also looking for the plastic vent that connects the 2 vent lines on the passenger side of the gas tank to the main vent line that runs to the engine....
thanks for your help
thanks for your help
June 3rd, 2008, 08:08 AM
#6
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Location: Plano, TX
Posts: 11,798
Okay, I finally have to ask this dumb (but related) question..
What is a dashpot??
I have one on my 72's 350. There is no vac line or electrical connection, nor are there provisions for them. It looks like an idle controller but is does nothing. It is more like a spring loaded plunger and my throttle linkage does not even touch it.
What is its "magic" function?
What is a dashpot??
I have one on my 72's 350. There is no vac line or electrical connection, nor are there provisions for them. It looks like an idle controller but is does nothing. It is more like a spring loaded plunger and my throttle linkage does not even touch it.
What is its "magic" function?
June 9th, 2008, 11:26 PM
#7
Just the facts...
Join Date: May 2008
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a dashpot's function is to slow the rate of throttle valve closing. it only functions near the fully closed throttle position. it was used to help prevent stalling when you hit the gas and let off right away, like in rush hour traffic when it's "gun the engine-hit the brake". with a moderately skilled driver-it's not needed.
bill
bill
July 28th, 2008, 04:35 PM
#8
is Fast Enough ...
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Location: dogtown
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If you adjust the idle for hot running, it will idle fastest at its hottest temp.
Which leads to partial open throttle run on when you shut the car off. The
dash pot should back off the idle setting as the vacuum disappears .
Which leads to partial open throttle run on when you shut the car off. The
dash pot should back off the idle setting as the vacuum disappears .
July 28th, 2008, 07:24 PM
#11
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then you need an "anti-diesel solenoid". it is electrically operated and is powered whenever the key is in the "run" position. the curb idle speed is set by the nut head on the end of the solenoid plunger. the carb. idle screw is set to a barely running speed(usually about 400 rpm).
bill
p.s. if you want to try to "fake it", set your curb idle speed 50-100 rpm below factory spec. the idle quality will likely be worse though, and you may suffer from a hesitation upon acceleration.
bill
p.s. if you want to try to "fake it", set your curb idle speed 50-100 rpm below factory spec. the idle quality will likely be worse though, and you may suffer from a hesitation upon acceleration.
Last edited by BILL DEMMER; July 28th, 2008 at 07:33 PM.
July 28th, 2008, 09:23 PM
#12
is Fast Enough ...
Join Date: Jul 2008
Location: dogtown
Posts: 1,308
then you need an "anti-diesel solenoid". it is electrically operated and is powered whenever the key is in the "run" position. the curb idle speed is set by the nut head on the end of the solenoid plunger. the carb. idle screw is set to a barely running speed(usually about 400 rpm).
bill
p.s. if you want to try to "fake it", set your curb idle speed 50-100 rpm below factory spec. the idle quality will likely be worse though, and you may suffer from a hesitation upon acceleration.
bill
p.s. if you want to try to "fake it", set your curb idle speed 50-100 rpm below factory spec. the idle quality will likely be worse though, and you may suffer from a hesitation upon acceleration.
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