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Engine slows then dies at WOT- 1960 18hp Johnson Seahorse
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<blockquote data-quote="Pappy" data-source="post: 274464" data-attributes="member: 3278"><p>Nope, with the engine overheating I would suspect you are leaking water into the lower cylinder via the head gasket. Pull the head and check. Buy a new gasket first. Check the cylinder walls for vertical scuffing while the head is off. Put each piston at BDC and look at the circumference of each cylinder. Let me know what you find. </p><p>On the lower unit. At this point just fill it up. In order to properly find the leak it should be pressure checked. Lets see how the rest of the engine looks before you repair that issue.</p></blockquote><p></p>
[QUOTE="Pappy, post: 274464, member: 3278"] Nope, with the engine overheating I would suspect you are leaking water into the lower cylinder via the head gasket. Pull the head and check. Buy a new gasket first. Check the cylinder walls for vertical scuffing while the head is off. Put each piston at BDC and look at the circumference of each cylinder. Let me know what you find. On the lower unit. At this point just fill it up. In order to properly find the leak it should be pressure checked. Lets see how the rest of the engine looks before you repair that issue. [/QUOTE]
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Engine slows then dies at WOT- 1960 18hp Johnson Seahorse
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