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Bent prop shaft and no water flow... related? (solved)
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<blockquote data-quote="turbotodd" data-source="post: 358140" data-attributes="member: 7376"><p>The bent prop shaft probably isn't going to cause lack of cooling water flow. That said, when you've got the foot off for servicing of the pump/impeller, I'd have a good close look at the splines. Look for twisting, specifically. It's pretty tough to twist a splined shaft, but it does happen sometimes. Prop shafts included. </p><p></p><p>Last Merc 25 I was into, seems like it would pee a real weak stream at first but as the t-stat opened, it would be hot and heavy. Then once the powerhead cooled and the t-stat closed, back to cold and weak. Repeat over and over until I ran the thing across the lake full throttle for a while and then it stayed hot and heavy.</p><p></p><p>Perhaps the impeller is showing signs of failing?</p><p></p><p>I hate that system. No/very little pee water (tell tale) with a closed t-stat. Have to sit at the ramp until the thing heats enough to tell you that the pump works. Seems like there outta be a way to 'fix' it to work like most all other motors?</p></blockquote><p></p>
[QUOTE="turbotodd, post: 358140, member: 7376"] The bent prop shaft probably isn't going to cause lack of cooling water flow. That said, when you've got the foot off for servicing of the pump/impeller, I'd have a good close look at the splines. Look for twisting, specifically. It's pretty tough to twist a splined shaft, but it does happen sometimes. Prop shafts included. Last Merc 25 I was into, seems like it would pee a real weak stream at first but as the t-stat opened, it would be hot and heavy. Then once the powerhead cooled and the t-stat closed, back to cold and weak. Repeat over and over until I ran the thing across the lake full throttle for a while and then it stayed hot and heavy. Perhaps the impeller is showing signs of failing? I hate that system. No/very little pee water (tell tale) with a closed t-stat. Have to sit at the ramp until the thing heats enough to tell you that the pump works. Seems like there outta be a way to 'fix' it to work like most all other motors? [/QUOTE]
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Bent prop shaft and no water flow... related? (solved)
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