Posted by Dean on August 07, 2013 at 20:54:22 from (152.216.3.5):
In Reply to: 4 bbl quadrajet posted by DCM on August 07, 2013 at 19:40:50:
Skip nailed it.
Once the throttle shaft bores in the aluminum throttle casting become worn, you will not be able to reduce engine speed to specified idle due to air leakage between the shaft and the aluminum casting.
There are no bushings in the throttle casting. Years ago, it was possible to buy bushings and bore the plate to install bushings but I doubt that the folks that once sold the kits are still around.
I expect that you can still buy a new throttle casting but they were over $100 25 years ago.
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Today's Featured Article - Harvestin Hay: The Early Years (Part 2) - by Pat Browning. The summer of 1950 was the start of a new era in farming for our family. I was thirteen, and Kathy (my oldest sister) was seven. At this age, I believed tractor farming was the only way, hot stuff -- and given a chance I probably would have used the tractor, Dad's first, a 1936 Model "A" John Deere, to go bring in the cows! And I think Dad was ready for some automation too. And so it was that we acquired a good, used J. I. Case, wire tie hay baler. In addition to a person to drive th
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