Hopefully I will soon have the ring situation sorted, the crank had some sideways movement so I knew I had to have a look and I knew what I was going to find. The bottom main bearing shell stayed in the housing and it took some careful persuasion to get it out and some grinding and chiseling to remove the inner off the crank. The lower main bearing was in two bits and didn't have an outer lip on one side to retain the inner race

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The bearings have been replaced before

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I will have to find another lower case, not done by me
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