Greetings all,Just picked up this motor...trying to revitalize it for my Grandad and his buddy to use fishin'. Light-weight is good when yer pushin' 92 years.Anyway, it's a 1972 Ted Williams/Sears 7.0 hp, model #217-58870. Now, after popping about online I've found that much out, and that's it (I'm an Evinrude guy, and so are all my manuals).Considering the vast knowledge base to be found here, I figured it was the place to ask about the mysteries of the Ted Williams...1) plug # and gap?2) fuel/oil mix ratio, and should it get TCW-3 marine or something like pennzoil air-cooled, or stihl oil, etc.?3) Hi-vis for the lower-lube, or something else. How much?4) and finally....since this is (I guess) an air-cooled tecumseh powerhead, when Grandad and his fishin' bud fire it off out of the water to "see how it's running," nothing is going to get damaged (like my 'rude impellers do, etc.), correct?Thanks in advance, the advice is greatly appreciated.
The engine is an ESKA as far as I know. If this is the case, then plug gap should be .35 gap. I will check more when I get home and tell you if my manual covers this model as well, if so I will copy it and email you if you like.Oil mix is 50:1I was told TCW-3, but again, let me check when I get home to the manuals.And do not fire up 'Out Of Water.' They are Air-cooled engines with water cooled exhast plate. There is an impeller in the foot. Sears still sells the impeller or the entire water part kit.I have a High Tech test tank at home to fire mine up in. (Tall Kitchen can sitting on a spare tire.)
Thanks Kevin,Yup, just went to the sears website and found the exploded view and saw the impeller. At least I would guess that water-cooled exhaust means that it's not as critical to be as 100% operationally efficient as water-cooling of the whole engine would require.Any additional info would, again, be greatly appreciated.Thanks,Bob