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I'm rebuilding my carburetor and inspecting/cleaning all the exterior parts having to do with choke and acceleration and all that good stuff. After researching about the dashpot for deceleration I'm curious if anyone has some info on here.
Wondering specifically about clearance from accelerator linkage. And also, I'm assuming that this is vacuum controlled, but I'm not finding anything to verify that. Where would the vacuum hose come from?
Looks something like this. The metal barb on the end looks like where the vacuum hose would go. Considering it should only work under acceleration, should this go to mani vac or ported?
1987 was the only year some of these trucks were still carbureted. Someone here might know the answer but you might want to also ask in the ‘80-86 forum.
If you have an automatic, no big deal. With a manual, they are a pain if the fanny. If you're loaded and need a quick, double clutched ****t to from 2nd tro 3rd w/o dropping to much speed they keep the engine revved a bit when you pull your foot off the gas. Emission device to burn the fuel that accumulates under the closed throttle blade with the high vaccuum of having the engine revved and no air. It just allows air to get in a burn rich mixture that otherwise would go out the tailpipe. Larry
If you have an automatic, no big deal. With a manual, they are a pain if the fanny. If you're loaded and need a quick, double clutched ****t to from 2nd tro 3rd w/o dropping to much speed they keep the engine revved a bit when you pull your foot off the gas. Emission device to burn the fuel that accumulates under the closed throttle blade with the high vaccuum of having the engine revved and no air. It just allows air to get in a burn rich mixture that otherwise would go out the tailpipe. Larry
Hmm...I have an automatic and was seeing that this part was only important on automatics.
I am having an issue with hesitation or stalling when I punch the gas and let off quickly, so I figured this may at least help with that issue some. Just trying to figure out where the vacuum for it comes from.
Figured it out for anyone that is curious or needs this info in the future. It's called the "throttle kickdown". Vacuum routing is on the vacuum diagram under the hood (who'd have thunk it )
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