Hello, I removed my prop to clean and grease the shaft and after removing the thrust bushing {part# 0334590** there sat a severely worn very thin plastic o-ring of some sort. Sat directly behind the thrust bushing. Would anyone know if this sits inside the groove in the actual thrust bushing, or is there a separate part that is in fact supposed to sit directly behind the bushing? Was more like 3/4 of an o-ring it was so deteriorated. 1994 Evinrude 9.9 E10ELERB. Looked in the schematics but did not see anything similar.
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