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Re: carb woes
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Posted by Bus Driver on August 21, 2002 at 05:07:02 from (65.165.152.139):
In Reply to: carb woes posted by wvhogleg on August 20, 2002 at 06:29:21:
Just read the other posts and found a goodly amount of really bad information in some of them while others offered real help. The choke does not do anything to help fuel get TO the carburetor. If choking makes an engine run reasonably well, the fuel flow TO the carburetor is probably OK. A leaking float (from a pinhole in the float) will result in a flooded engine. The choke controls AIR FLOW, which when restricted at the choke location, indirectly causes fuel flow into the engine to increase. That flow is fuel that is already in the carburetor. Cub carburetors do not have to be disassembled to clean the main jet. Using a 3/8 hex or open end wrench, remove the brass "nut" in the side of the carburetor. Using SMOOTH wire, clean the tiny hole in the end near the threads. Do this several times and blow out with compressed air each time. Do not alter the size of the hole. Reinstall-careful with the gasket-the carburetor can leak here too. See if this 5 minute procedure helps.
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Oil Bath Air Filters - by Chris Pratt. Some of us grew up thinking that an air filter was a paper thing that allowed air to pass while trapping dirt particles of a particles of a certain size. What a surprise to open up your first old tractor's air filter case and find a can that appears to be filled with the scrap metal swept from around a machine shop metal lathe. To top that off, you have a cup with oil in it ("why would you want to lubricate your carburetor?"). On closer examination (and some reading in a AC D-14 service manual), I found out that this is a pretty ingenious method of cleaning the air in the tractor's intake tract.
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