- This topic has 8 replies, 3 voices, and was last updated 3 years, 7 months ago by
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What year / model do you have? There were different designs for the 7.5 B-O-M. Early ones had a curved leg with the pumps up high. Later ones had a straight leg with the pumps down low. And then there were the low profile motors that I avoid like… well… Covid.
IIRC, in all cases the cooling pump had a small bleeder hole in it that led to the bailer impeller to keep the bailer wet during use. But you should probably keep the inlet capped with the rubber cap when not in use. You don’t have to submerge the bailer when starting.
Most Scotts from the ’50’s used WICO ignition. The condensers, if they have the fiber insulator, are notorious for leakage current. At a minimum, test them.
T
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That is the old notorious high-mount pump. Make sure it is as deep in the water as practical before starting to reduce the time it runs before wetting the pump. Better yet run some water from a hose into the bailer inlet to wet the pump, but who does that?
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If I had to guess, I’d start with condensers. I’ve never found a WICO brass one with the screw on top and the fiber insulator to pass any leakage test.
Tom
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