November 8, 201015 yr Rebuilt the top end of my 159 engine this weekend but not happy with the fit of the Aluminium thrust washers with the small end. In my spares I have thrust washers with both a large recess and a smaller recess (flange). I assume this fits over the end of the small end bearing which is a single 20mm bearing. On the first couple of fits the gudgeon pin seemed to push the small-end bearing deeper into the thrust washer allowing one of them to fit loosely on the gudgeon pin with no contact on the small-end. Is my reasoning correct that the small end should fit the recess/flange on the washers and that they should both be tight with contact on the small end? This would also position the semi-circular cut-outs in the washers on the inside against the con rod/small end. As I said it all seems to have gone together in the end but I am a bit nervous that it isn
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