Re: 1952 Johnson 25HP (RD-13) crank seal? Home › Forum › Ask A Member › 1952 Johnson 25HP (RD-13) crank seal? › Re: 1952 Johnson 25HP (RD-13) crank seal? jpatti75US Member - 2 YearsReplies: 296Topics: 49 June 9, 2018 at 3:23 am #77701 PM sent, David. Thank you very much!