water in gearcase oil

[Davoe1]

HI have a johnson 9.5 hp mq12a 1966 runs and starts like a dream but finding water mixed with oil in lower gearcase i changed fill and drain nylon seals no evidance of prorp seal fouling as all seems dry at prorp area can any body suggest any seals to be at fault

[boats.net]

The gearcase seal that holds the two halves together maybe leaking. It can only be purchased as a roll, part number: 0309044 There is also a seal and gasket below the water pump. p/n: 0313282 and p/n: 0303339

0309044 SEAL-50' ROLL $16.77
0313282 EVINRUDE/JOHNSON OIL RETAINER $9.77
0303339 EVINRUDE/JOHNSON GASKET $0.95

[Davoe1]

would this also be the cause to find very oily muck while flushing motor in fresh water tank and if so will these seals fix that problem also??????

[boats.net]

No two strokes will always leave oil in the water tank.