1968 Quadrajet Dashpot?

[Robski]

Greetings

I have a factory 1968 Quadrajet set up and the metal dashpot mounted on the throttle cable linkage side of the carb is broken. Are they still available? I have not had much success in finding it on the net.

Are they necessary?

Regards
Rob

[Twilight Fenrir]

I had a problem with that on my '66... The piston was stuck, and after torching it for a long time, I managed to get it out, but the rubber that held it together had melted. I cut a new one out of a flat rubber washer, and it seems to work...

That rubber piece is what Holds the piston on, if that is the nature of its broken-ness, that would be a way to repair it. If metal is actually broken, you'll need a donor car to takr the parts from, or a new carb.

The var will still run without the dashpot, just not very well... It helps regulate the fuel when the secondaries open. If it is sealed off, I think it will prevent fuel flow to the secondaries, and if it is stuck open, it will run rich... If I recall correctly... What I know about it was learned durring my above problem... I am far from an expert on the subject. I am sure if you asked Sparky, he could tell you all you ever wanted to know about it.

[Eightballz]

I had a problem with that on my '66... The piston was stuck, and after torching it for a long time, I managed to get it out, but the rubber that held it together had melted. I cut a new one out of a flat rubber washer, and it seems to work...

That rubber piece is what Holds the piston on, if that is the nature of its broken-ness, that would be a way to repair it. If metal is actually broken, you'll need a donor car to takr the parts from, or a new carb.

The var will still run without the dashpot, just not very well... It helps regulate the fuel when the secondaries open. If it is sealed off, I think it will prevent fuel flow to the secondaries, and if it is stuck open, it will run rich... If I recall correctly... What I know about it was learned durring my above problem... I am far from an expert on the subject. I am sure if you asked Sparky, he could tell you all you ever wanted to know about it.

do u really mean the dash pot? as far as i know..that dashpot is needed when u jump off the throttle to keep the engine from stalling

[Twilight Fenrir]

I had a problem with that on my '66... The piston was stuck, and after torching it for a long time, I managed to get it out, but the rubber that held it together had melted. I cut a new one out of a flat rubber washer, and it seems to work...

That rubber piece is what Holds the piston on, if that is the nature of its broken-ness, that would be a way to repair it. If metal is actually broken, you'll need a donor car to takr the parts from, or a new carb.

The var will still run without the dashpot, just not very well... It helps regulate the fuel when the secondaries open. If it is sealed off, I think it will prevent fuel flow to the secondaries, and if it is stuck open, it will run rich... If I recall correctly... What I know about it was learned durring my above problem... I am far from an expert on the subject. I am sure if you asked Sparky, he could tell you all you ever wanted to know about it.

do u really mean the dash pot? as far as i know..that dashpot is needed when u jump off the throttle to keep the engine from stalling

Right. It is a piston that is on the end of a small rod on the '66 carb... when you step on the throttle, it lifts up the piston and seals off the hole in it, forcing the fuel to go a slightly different route, and when you step off the gas, the fuel goes through a hole in the middle of it that is opened by the rod dropping the rubber seal attatched to it away from the piston.

It has been awhile since I really sat and looked at it, I'm speaking completely from what I remember... and I don't necessarily have the best of memories

If the piston is gone however, the fuel will just pour right through it, and would cause all kinds of problems I suspect. If the piston is stuck, or blocked off, depending on where it is, it would not send fuel the correct way...

[Robski]

Yes, that is what I meant. The Dash Pot that looks similar to a metal Choke pull off but with no vac line etc. It is supposed to keep the throttle from slamming shut like you said.

Are they available new or do I need to find a used one? The metal part is just fine but the part that contacts the throttle linkage is missing.

Thanks
Rob

[Twilight Fenrir]

Yes, that is what I meant. The Dash Pot that looks similar to a metal Choke pull off but with no vac line etc. It is supposed to keep the throttle from slamming shut like you said.

Are they available new or do I need to find a used one? The metal part is just fine but the part that contacts the throttle linkage is missing.

Thanks
Rob

The part that goes over the throttleplate? Or the rod between the piston, and the part that goes over the throttleplate? Either way... I suspect you're going to be stuck finding someone who has a spare.... Aside from rebuild kits, tuning stuff, and choke pulloffs... I don't think you can really buy parts for these carbs...

[Toronado66]

A TOA member has recently had great luck using a dashpot purchased on ebay ($9) from competitioncarburetors (vendor name). Search for "Carburetor Dash Pot Idle Stop Dashpot assembly" on ebay to find them.

His application was a '67 Eldorado...but it's basically a highly generic part that is being sold. This one is a wee short on the stem...but works well in many applications. I don't know the particulars on a '68 Toro, but this one might do the trick.

Darwin Falk
TOA#7

[Robski]

Found the exact Dash-Pot at Pick and Pull on a 70 Buick Wildcat 455. Paid 2 bucks and installed it. Works perfectly.

Thanks to all for the help.

Best Regards
Rob

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