Reply To: 1957 Evinrude Big Twin 35 Skeg interferes with gears.

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January 24, 2022 at 8:28 am #253315
frankr
Participant

    The two thrust washers are different part numbers because they are different I.D. and O.D. diameters.  The larger O.D. goes in the case first, then the roller thrust bearing, then the smaller O.D. washer.  Why?  Because the one rotates with the pinion and the smaller O.D. allows it to rotate without rubbing the inside of the cavity.  Clear as mud????