Reply To: 1956 Johnson RDE-18E

[Don]

Well, for now I am going to advise leaving it alone….Perhaps it is relatively clean because it was recently changed…Leaks can be caused by something as simple as missing drain screw washer/seals, or screws with two of them in place. Fairly common, would be a shame to pull this thing all apart just due to a leaky fill/drain screw gasket.
Once you have the gearcase removed and the water pump off, we will try to rig something up so you can pressure test it…This is the only good way to evaluate for leaky seals/orings. Pull the prop off now also, make sure there is no fishline/grass caught in the prop shaft seal…