DavidW2009
Regular Contributor
Learn something new every day on these I/O's........
Apparently, some I/O owner/operators are installing external cooling systems to cool the upper gear drive while the boat is on a plane and above the water.
They claim it is a good thing to decrease gear case temps.
If there is a problem with temperature, why in the world do maufacturers of I/O's route the exhaust thru the outdrive?
By doing this, it would have to increase the gear case temps, unless the water temp is real low.
I have been thinking of converting my 2.3L OMC to a thru the hull exhaust (yes, the noise level would increase), and thought of that very thing of the exhaust overheating the outdrive. Now I find that this may be a real problem.
(And it seems to me, a thru-the-prop exhaust system further complicates the design and increases the cost of manufacturing an outdrive.)
How is it determined the outdrive temps are too high?
Apparently, some I/O owner/operators are installing external cooling systems to cool the upper gear drive while the boat is on a plane and above the water.
They claim it is a good thing to decrease gear case temps.
If there is a problem with temperature, why in the world do maufacturers of I/O's route the exhaust thru the outdrive?
By doing this, it would have to increase the gear case temps, unless the water temp is real low.
I have been thinking of converting my 2.3L OMC to a thru the hull exhaust (yes, the noise level would increase), and thought of that very thing of the exhaust overheating the outdrive. Now I find that this may be a real problem.
(And it seems to me, a thru-the-prop exhaust system further complicates the design and increases the cost of manufacturing an outdrive.)
How is it determined the outdrive temps are too high?
