The iboats forum moderators are excited to announce that at this time it appears the iboats forums posting pictures function is working once again. Though we cannot promise for how long, we're hoping for indefinitely.
I frequently change the oil in my lower unit. Today I discovered it was contaminated with some water. It's a 25 hp Merc. that is only three years old. What might be the cause ?
bad seals<br /><br /><br />get a lower unit seal kit from your dealer. its pretty cheap.<br /><br />also, get a manual before you try replacing them.<br /><br />your dealer has these too
Since the motor is only 3 years old and assumming you have run it moderately or less and you have changed the oil previously it may well be as the last post reply - vent and/or fill plug. Last year when I changed my lower unit oil I inadvertantly forgot a teflon washer on one of the plugs. Luckily I checked my oil after my 1st outting after that. I flushed all out and redid the change with the teflon washers (gaskets) that time. Good luck.
Thanks for the advice. I found the proper washers at Boater's World and I've flushed and drained everything twice. I am putting it back together today and hopefully this will solve my problem. *I did discover that I had somehow not installed the teflon washer on the lower screw last time. Didn't know such a little oversight could cause such a big result!