Last weekend, I was making my way down my canal to go out for a quick ride. While doing around 900 RPM's or so, my warning horn started blaring a solid tone (Overheat)I looked at the water preasure gauge and it showed only about 2 psi. Luckily for me, I was right near my ramp. This is the start of the third season with my current water pump impellar, so I figured that was going to be it. I got the boat home, dropped the lower unit and took apart the pump. Much to my surprise, the impellar and stainless steel housing looked near new !!! There is a good chance I picked up some crap in my slip when I started the engine as it is a very shallow slip. But if the pump was running dry, wouldnt it look burnt and obviously bad? When I ran the engine a few weeks ago with a garden hose hooked up to the flush port, it ran well. Preasure gauge then was about 15-20 lbs, depending on rpm. Bottom line is this: Could my pump be totally shot and "look" O.K.? I was expecting much worse than what I saw. And did I do any further damage to the engine for the short time it ran "dry"? Anyone may respond to Jimmri@aol.com. or here.
