Reply To: Should I use Viton or Buna-n o-ring for bottom crankshaft???

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February 5, 2021 at 6:11 pm #229609
frankr
Participant

    Common-garden o-rings used by OMC are Buna-N, 70 durometer. I bought them by the thousands every month when I worked at the hydraulics mfg plant. They were used to seal straight oil, ATF, Aircraft hydraulic fluid, anti-freeze and water in our applications, pressures 0 up to 2000 PSI..