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? frankrUS Member - 1 Year (includes $3 online payment fee)Replies: 6715Topics: 51 June 8, 2018 at 10:56 pm #77682 There is a carbon seal under the spring and washer. Simply lift it out. There is an o-ring inside it, so it will have some resistance to sliding up the shaft. Careful, it is fragile. Maybe already broken (causing the leak).