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1972 johnson 20 hp missing and no power
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<blockquote data-quote="SumDumGuy" data-source="post: 358989" data-attributes="member: 12459"><p>Y_J's got it right on the oil (80-90W marine)</p><p></p><p>I use the stuff from walmart: Quicksilver Premium Gear Lube.</p><p></p><p>As far as where it is leaking it could be any number of seals. Take a look at the parts diagram (<a href="https://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1972&hp=20&model=20R72R&manufacturer=Johnson&section=Gearcase" target="_blank">https://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1972&hp=20&model=20R72R&manufacturer=Johnson&section=Gearcase</a>) and start with the easiest to replace first. I would do the case seal and the plug seals and put it in a tub of water (no oil) and see if it gets any water inside. If it does not then you could oil it up and run it. Check the case for water. No water - good2go. Water - one of the inner seals is possibly leaking.</p></blockquote><p></p>
[QUOTE="SumDumGuy, post: 358989, member: 12459"] Y_J's got it right on the oil (80-90W marine) I use the stuff from walmart: Quicksilver Premium Gear Lube. As far as where it is leaking it could be any number of seals. Take a look at the parts diagram ([url]https://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1972&hp=20&model=20R72R&manufacturer=Johnson§ion=Gearcase[/url]) and start with the easiest to replace first. I would do the case seal and the plug seals and put it in a tub of water (no oil) and see if it gets any water inside. If it does not then you could oil it up and run it. Check the case for water. No water - good2go. Water - one of the inner seals is possibly leaking. [/QUOTE]
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1972 johnson 20 hp missing and no power
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