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50MPI losing Final Drive oil

twox48

New member
"I'm fairly new to boating

"I'm fairly new to boating but somewhat mechanically inclined with puttering with classic cars over the years. I recently purchased my 2nd boat, a used 2003 Campion Chase 580i with 5.0 MPI Merc Alpha 1 drive. The final drive oil level inspection bottle was at the full line when I started. After approx 5 hours the level was at the bottom line. ???? I added to the full line and after the 2nd 4-6 hours it was down again.
No visible leaks. None in the bilge. No rainbows in the water.
Any hints? I'm about to have it winterized and want some opinions before I send it in so I can be somewhat informed beforehand. I intend on having the bellows replaced as there is a small crack in 1 that weeps water into the bilge. I didn't read anything on the bottle about it being that expensive "dissappearing" oil so I'm assuming that they'll find the oil then.
Thanks in advance."
 
"Ayuh,... Your drive is Leaki

"Ayuh,... Your drive is Leaking,.. Somewhere...
A Pressure/ Vacuum test usually will pinpoint the Problem..."
 
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