Anti Stall Dashpot

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What are they, what do they do, anyone know? Looking in my manual cause im rebuilding a Carter YF carb and see that the diagram has a picture of one on their :?: .


wes
 
I'm not sure on what the dashpot does but I assume that it just holds a small reserve of gas if there is a hickup in the carb. I'm not terribly sure on that though.

I mostly just wanted to offer you a copy of the rebuild pages out of my manual.. I'm not sure what you're working out of but i have one of 1980 shop manuals with that carb in it. It's like 10 and a half pages. if you want it i'll scan and upload it.
 
The dashpot works if the motor stumbles at idle. The sudden extra "suck" of a nearly-stalling motor, operates the dashpot. It, in turn, tweaks the throttle a bit - causing the speed to increase.
 
I say leave it off, I have never had a carb on my car with one, like to keep it a simple as possible :wink:
 
Its purpose is say if you have power steering and you turn the wheel all the way one direction it will put a load on the motor and slow it down a little well the dashpot has a diaphram in it that when a pressure of the motor lugging down pushes it out in turn pushing on the throttle a little bit keeping the motor from dieing. The way it works on the power steering is there is a little tube on the pressure side of the hydrolic system and a bypass valve. When you crank the wheel to the full lock it opens the bypass valve and forces some fluid into that dashpot thus keeping the motor running and steering easy. if you have no power components then there will be no sudden lugs on the motor you should not need one
 
If this is the part I think it is, it also keep the throttle cracked open a little when you let off the gas, until it is close to idle speed.
It keeps the carb from sucking a lot of gas when you don´t want it to.
 
on mine when i had a YF, it was intended to make the throttle close slowly, as rust collector was saying, but in my experience it would hold the throttle open enough that it idled at 1500rpm, so i took it off. mine was the model without a vac connection.
grantD is mistaken, the dashpot is entirely external and only actuates the throttle from outside.
if you want one, (its implied you dont have one), im sure i could ship it (or the whole carb, which has flooding problems) to you. if yes, PM or email me
--josh
 
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