Re: 55 RDE-17, 25 hp, Power Head O-rings, etc Home › Forum › Ask A Member › 55 RDE-17, 25 hp, Power Head O-rings, etc › Re: 55 RDE-17, 25 hp, Power Head O-rings, etc BuccaneerUS Member - 1 Year (includes $3 online payment fee)Replies: 7495Topics: 1072 July 13, 2018 at 12:43 pm #79481 quote Chris_P: Depends on seal orientation. More pressure can actually help a leaky seal hold. Okay, now I have my brain back on track, lol. Makes perfect sense now. Thanks. Prepare to be boarded!