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Engine slows then dies at WOT- 1960 18hp Johnson Seahorse
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<blockquote data-quote="who pooted?" data-source="post: 274185" data-attributes="member: 940"><p>found one obvious problem. the choke will get stuck in full when engaged and the valve door will not open once choke is released. apparently there is a spring or metal arm missing (will fix that mcgyver style for now). I used a thick metal key ring that i straightened out. See pic</p><p>The plugs did appear to be somewhat fouled due to this issue, will put new plugs in.</p><p>tried to pull off flywheel to get a better look at coils, points etc., but apparently you need a special tool- flywheel puller? I looked through the inspection port and coils looked brand new absolutely no signs of wear. Everything else looked good too.</p><p>I did notice when i turned the flywheel there was some grinding/friction noise coming from the LU. I will change the oil in it and see if there are any pieces, if so then i will drop entire unit for further inspection. Oil looked fine, not exactly clear but doesn't appear too bad. I use Penzoil Marine Gear lube which has a slight green tint to it. See pic.</p><p>Compression test- upper cylinder at 107psi, lower at 105psi. So that looks fine. It did look like there was some moisture on the plugs and compression tester once removed from the cylinder. Is that possible or am i confusing little beads of moisture on the ends for oil?</p><p>Off to the lake I'll let you know what happens.</p><p>Thanks again everyone.</p></blockquote><p></p>
[QUOTE="who pooted?, post: 274185, member: 940"] found one obvious problem. the choke will get stuck in full when engaged and the valve door will not open once choke is released. apparently there is a spring or metal arm missing (will fix that mcgyver style for now). I used a thick metal key ring that i straightened out. See pic The plugs did appear to be somewhat fouled due to this issue, will put new plugs in. tried to pull off flywheel to get a better look at coils, points etc., but apparently you need a special tool- flywheel puller? I looked through the inspection port and coils looked brand new absolutely no signs of wear. Everything else looked good too. I did notice when i turned the flywheel there was some grinding/friction noise coming from the LU. I will change the oil in it and see if there are any pieces, if so then i will drop entire unit for further inspection. Oil looked fine, not exactly clear but doesn't appear too bad. I use Penzoil Marine Gear lube which has a slight green tint to it. See pic. Compression test- upper cylinder at 107psi, lower at 105psi. So that looks fine. It did look like there was some moisture on the plugs and compression tester once removed from the cylinder. Is that possible or am i confusing little beads of moisture on the ends for oil? Off to the lake I'll let you know what happens. Thanks again everyone. [/QUOTE]
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Engine slows then dies at WOT- 1960 18hp Johnson Seahorse
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