A friend has a 1976 merc 65hp and he says he boogered up the slot in the fill screw, because it is plastic. Did they use plastic screws back then?<br /><br /><br />thnx<br />mark
If he actually got hold of a plastic screw on the side, it may have been the flushing screw. I imagine you could confuse the two, but as noted, both the fill screw at the bottom of the gearcase, and the vent screw on the side, are made of stainless.
