Take a pipe nipple that fits the block where the sending unit is screwed in. Braze the end shut that goes in the block put a coupling on the nipple and tighten it in as though permanent. Mark the nipple for top (high point toward the sky) and remove it and drill a 1/8" hole on the side with the mark (off center to assure air gets out). Turn it back in (with sealer) and put the coolant back in till it fills the coupling. Then install the dending unit (again letting air out till only coolant is leaking before tightening. This should isolate the unit from swings in temp and air bubbles. Cheap and easy!! Jim
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Today's Featured Article - A Cautionary Tale - by Ian Minshull. In the early 1950s my father bought an Allis Chalmers B and I used it for all the row crop work with the mangolds and potatoes, rolling and the haymaking on our farm. The farm and the Allis were sold and I have spent a lifetime working on farms throughout the country. I promised myself that one day I would own an Allis. That time event
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