Hi,<br /><br />I have a 1974 Thompson with a 120hp OMC stringer drive I/O in it. The engine runs like a top (MUCH less to be said for the dorky carburetor, though), the electric shift works everytime (now that I fixed that infamous and ALMOST ALWAYS misdiagnosed problem -- which can be fixed for less then $1 in about 2 min.) for those wondering, the shift problem is a weather aged connecter under the dash (square, black). I zip tied mine tightly together and the problem is gone.<br /><br /><br />ANYWAY, the problem i have now is, the upper unit whines when it is run on a hose in the drive way -- I dont recall hearing the whine on the water though.<br /><br />Also, the oil in the upper unit is ALWAYS milky. It doesn't seem to matter how often I change it. This tells me I have a water leak somewhere. My question is, HOW DO I FIND IT SO I CAN FIX IT -- BEFORE I wreck my upper drive?<br /><br />thanks for any help ya'll can provide. 
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