Larry, I think you’re getting the hole in the water tube confused with the hole in the impeller housing that does what you mention, that Frank R. so nicely explained recently. I can only remember one person on here saying he had to put a hole in the tube to cool a hot exhaust housing. There may have been a special situation that called for that out of the ordinary fix. Of all the motors of this era I’ve owned and worked on over 25-30 years, I’ve never had a need to do it. But if you saw some on ebay with the holes maybe it’s more common than I think.
