Gents, You may be interested in seeing a few photos showing how I made an oil scraper ring for a 3/1. Start at this photo -
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and theres 19 more.1" of 100mm cast iron and about 5 hours later, I have a ring! I need to make a set of 40thou oversize rings and another scraper ring for my 3/1. I have found the previous owner of my 3/1 has fitted a standard set to a 40thou piston, this leaves a gap of 0.140" instead of
12 - 16thou. The bit of iron will only do 3 rings so it'll have to do, putting the 3 correct size ones to the top. regards, Simon
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