Posted by k9mills on November 29, 2009 at 17:08:09 from (12.77.178.22):
In Reply to: farmall c carb posted by jim from az on November 29, 2009 at 09:00:52:
Evilbolwevl, In the same type carburetor in three different tractors in the last year, I have found leaking floats (sometimes called sunken floats). In two of the three, I removed the floats from the arm and soldered on good floats canabalized from old carbs to solve the problem. FOR SAFETY DO NOT USE AN OPEN FLAME SOURCE FOR THE PROJECT. I used a heavy duty electric soldering iron and rosin core electrical solder for the project with excellent results. Do not use acid core solder unless you want the same problem repeated next year. If this is the problem and you choose to replace the old floats. To unsolder the old float, find the vent hole used by the manufacturer to solder up the float, usually a small 1/8" circle of solder in the middle of one of the sides; drill a 1/16" or smaller hole in the center and heat the float lightly with the hole down to force out the old gasoline. You can't unsolder the old unit until all the gasoline is out of the float. When empty the old solder on the arm will melt easily for removal of the float. You don't have to vent the new floats when soldering them in place. If the problem is an open seam and you decide to try soldering it back, vent the float and remove all the gasoline; clean the seam as best you can with lacquer thinner and 000 steel wool. Apply a light coat of Oatey's #5 tinning solder to the seam, (a plumbing item from Lowes), with the electric soldering iron run a seam of rosin core solder along the joint making sure you get a bright complete seam. Using the same technique, solder up the vent hole. KM
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Today's Featured Article - Good As New - by Bill Goodwin. In the summer of 1995, my father, Russ Goodwin, and I acquired the 1945 Farmall B that my grandfather used as an overseer on a farm in Waynesboro, Georgia. After my grandfather’s death in 1955, J.P. Rollins, son of the landowner, used the tractor. In the winter 1985, while in his possession the engine block cracked and was unrepairable. He had told my father
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