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Jon and V Boat Conversions & Modifications
Another Jet Ski John Boat (New pics and video 01-18-2012)
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<blockquote data-quote="PSG-1" data-source="post: 234541" data-attributes="member: 6937"><p>Yes, a water strainer is a very good idea. It's much easier to clean a screen than to try unclogging the cooling passages of an engine.</p><p></p><p>One other thing I would suggest would be to buy an outboard motor water pressure gauge, and mount that in your console. A pitot tube, similar to a speedometer tube, is connected to the back of the gauge. Get a "T" fitting, and plumb it in AFTER the water strainer in the cooling loop, and connect the pitot tube. Don't put the T fitting before the strainer, because you will continue to get a pressure reading even if the strainer is completely clogged.</p><p></p><p>Once you have your gauge properly installed, you no longer need to take your eyes off the water to look for indicator streams, etc. You simply glance at the water pressure gauge to know that your engine is getting water. If the strainer clogs, you will instantly see a drop in water pressure.</p><p></p><p>To me, this makes a lot more sense than a temp gauge, as with a temp gauge, by the time you realize something is wrong, the engine has already run hot. </p><p></p><p>With the pressure gauge, you instantly detect a drop in pressure, shut down the engine BEFORE it ever has a chance to run hot, not after, then, clear the obstruction, and you're good to go.</p><p></p><p>This is the setup I'm running with my jetboat, and it works exactly like I described. Typical water pressure readings are about 6-7 PSI at about 6K RPM, and at WOT, it approaches the 15 PSI mark. Your results may vary. This is one of the best ideas I've implemented on my boat, I should have done it a long time ago.</p><p></p><p> In fact, I think it's such a good idea, I went ahead and bought one to install on my other boat, so I don't have to look back at my outboard to see if it's peeing, I can glance at a gauge and know if there's a problem. just got it yesterday, I'll be installing it sometime today.</p></blockquote><p></p>
[QUOTE="PSG-1, post: 234541, member: 6937"] Yes, a water strainer is a very good idea. It's much easier to clean a screen than to try unclogging the cooling passages of an engine. One other thing I would suggest would be to buy an outboard motor water pressure gauge, and mount that in your console. A pitot tube, similar to a speedometer tube, is connected to the back of the gauge. Get a "T" fitting, and plumb it in AFTER the water strainer in the cooling loop, and connect the pitot tube. Don't put the T fitting before the strainer, because you will continue to get a pressure reading even if the strainer is completely clogged. Once you have your gauge properly installed, you no longer need to take your eyes off the water to look for indicator streams, etc. You simply glance at the water pressure gauge to know that your engine is getting water. If the strainer clogs, you will instantly see a drop in water pressure. To me, this makes a lot more sense than a temp gauge, as with a temp gauge, by the time you realize something is wrong, the engine has already run hot. With the pressure gauge, you instantly detect a drop in pressure, shut down the engine BEFORE it ever has a chance to run hot, not after, then, clear the obstruction, and you're good to go. This is the setup I'm running with my jetboat, and it works exactly like I described. Typical water pressure readings are about 6-7 PSI at about 6K RPM, and at WOT, it approaches the 15 PSI mark. Your results may vary. This is one of the best ideas I've implemented on my boat, I should have done it a long time ago. In fact, I think it's such a good idea, I went ahead and bought one to install on my other boat, so I don't have to look back at my outboard to see if it's peeing, I can glance at a gauge and know if there's a problem. just got it yesterday, I'll be installing it sometime today. [/QUOTE]
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Jon and V Boat Conversions & Modifications
Another Jet Ski John Boat (New pics and video 01-18-2012)
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