Well Kelly First off when that tractor was made and used reg gas was between 93 and 95 anywhere ya went second that it is a high rpm engine and considered high comp. and third the owners manual tells ya that min. req. is for 93 and if ya use 89- or 87 she will have pre ing can swell pistons and score liners lock up under load . Now also think about this just how old that tractor is and you have no idea just how many times that head has had .010-.020 taken off and this has upped the comp.and will add to the need for the 93 socalled high test of today. Also the timing is vary important on them so one must keep a close eye on it when one changes the points , 24 degrees at rated high idle on a 263 and 18 and no more then 20 on a 291 .
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Today's Featured Article - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
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