Reply To: Lower Seal 305098 Quad Ring issue Evinrude 18HP

[salnaes]

Hi frankr. Thank you very much for your reply. It’s very helpful for me now to make a decision. It also agrees with what I have succeeded in obtaining from various sources on the Internet. The only concern I have is wondering why marineengine and other providers still sell the O-ring as part for the Lower Seal for the 18 HP. They could easily have exchanged to the Quad Ring. They sure have both parts in stock.  I’m quoting from the Seloc manual: “Install the quadrant O-seal into the quadrant seal holder with the lip of the seal facing toward the bottom of the cylinder block.”  The quadrant seal holder or Bearing Seal which it’s labeled on marineengine, have both the same part number for the 40 HP and the 18 HP, namely Bearing Seal #302538. So I take it for granted that both the O-ring #302540 and the Quad Ring #305098 fits in the same Bearing Seal #302538. Right? So, very soon I will start assembling my Power Head with new pistons, rings, honed cylinders and new top and bottom seals.

I’m very happy to be here on this forum with so many knowledgeable and experienced users willing to share with less experienced guys like me. Thank you all.