"I noticed a small milky oil d
"I noticed a small milky oil drip from what appears to be a small air bleed pinhole (1/16 inch or so) just above and in front of the 3 water intake ports on the starboard side of my 89 OMC Cobra lower stern drive. There is a similar pinhole just below and behind the water intake ports. On draining the stern drive oil, it appeared milky (evidence of water getting in). A couple questions.
1. I assumed the pinhole leaking oil must have had a plug that came out, so I put in a very short sheetmetal screw with a rubber washer to seal it. Right thing to do?
2. I assumed the water got in through the pinhole while using the boat, then milky oil dripped back out on land. Should I be looking for another possible water leak? If so, are there obvious things to check, or is it teardown/rebuild time?
3. Would it be possible to check for a water leak with the oil drained out, by closing the oil drain plugs and blowing air into the oil dipstick hole to see if it holds pressure? Or should I just put in new oil, run it a while, and see if it's still getting water?"
"I noticed a small milky oil drip from what appears to be a small air bleed pinhole (1/16 inch or so) just above and in front of the 3 water intake ports on the starboard side of my 89 OMC Cobra lower stern drive. There is a similar pinhole just below and behind the water intake ports. On draining the stern drive oil, it appeared milky (evidence of water getting in). A couple questions.
1. I assumed the pinhole leaking oil must have had a plug that came out, so I put in a very short sheetmetal screw with a rubber washer to seal it. Right thing to do?
2. I assumed the water got in through the pinhole while using the boat, then milky oil dripped back out on land. Should I be looking for another possible water leak? If so, are there obvious things to check, or is it teardown/rebuild time?
3. Would it be possible to check for a water leak with the oil drained out, by closing the oil drain plugs and blowing air into the oil dipstick hole to see if it holds pressure? Or should I just put in new oil, run it a while, and see if it's still getting water?"