what is this part called? can't find it anywhere. Mechanical Idle Solenoid? Valve?
#1
what is this part called? can't find it anywhere. Mechanical Idle Solenoid? Valve?
idle%20sol_zpskcpqddk0.jpg
So my internet sleuthing, and 2 Haynes manuals, has lead me nowhere looking for what to call this part. It is starting to bind up, so most of the time my curb idle screw doesn't make contact with the plate. I can only find "idle adjustment solenoids" for sale. and they all have electrical connections. I can't find anything that looks similar for sale. I would like to replace it if I can. I assume its job is to make the transition from open throttle to idle softer? can I just remove it and forget it ever existed? I just want to get this sorted before I finish tuning the carb. thanks!!!
So my internet sleuthing, and 2 Haynes manuals, has lead me nowhere looking for what to call this part. It is starting to bind up, so most of the time my curb idle screw doesn't make contact with the plate. I can only find "idle adjustment solenoids" for sale. and they all have electrical connections. I can't find anything that looks similar for sale. I would like to replace it if I can. I assume its job is to make the transition from open throttle to idle softer? can I just remove it and forget it ever existed? I just want to get this sorted before I finish tuning the carb. thanks!!!
#3
Look again. An idle stop solenoid is electrically operated. The item in the photo is a dashpot. It's simply a spring-loaded damper (think shock absorber) that prevents the throttle arm from slamming shut if you lift off the gas quickly. Exact replacements are available, but are not cheap.
#4
awesome. Thanks! I would have never figured out what to search. and damn...you are not kidding. these are expensive. I think I'm going to attempt different adjustments with it and see if I can get it to work ok before I drop $70 on a new one. thanks for the info!
#6
To my knowledge, these dashpots are no longer being manufactured and only a few people have the old stock available. That's why they are so expensive. Not many used ones around because they have been tossed away.
#8
The plunger slides in a plastic sleeve. The rust on the plunger shaft is why it is binding. Petroleum-based lubricants will eventually attack the plastic sleeve. If you want to try to save this dashpot, carefully remove the rust from the plunger and only use silicone-based lubricants. Keep in mind that in the dirty underhood environment, any lubricant will attract and retain grit, compounding the problem.
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