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Old 10-13-2017, 02:54 PM   #21
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I have an aftermarket thru hull uptake and the drive uptake has been capped off.
This is a Bravo III. They are known to slowly corrode and crush the intake hose where it passes through the transom assembly. The resolution is to replace the transom assembly. What some folks do as a work around is to cap off the intake through the outdrive, then install a through hull, with a seacock and a sea strainer like a full inboard.

The water intake through the drive also cools the drive, so if a through-hull intake is installed, then an external drive shower also needs to be installed on the drive.

Do you have an drive shower?

Those manifolds and risers look like they were ready for replacement LAST season.
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Old 10-14-2017, 07:31 AM   #22
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Do you have an drive shower?

Those manifolds and risers look like they were ready for replacement LAST season.
I don't know about the drive shower. Where would I see it?

According to the mechanic it should have been changed three seasons ago. I reduced the price accordingly, but hopefully no surprises lurking in there. Going to get it done ASAP.
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Old 10-14-2017, 04:17 PM   #23
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I don't know about the drive shower. Where would I see it?

According to the mechanic it should have been changed three seasons ago. I reduced the price accordingly, but hopefully no surprises lurking in there. Going to get it done ASAP.

The shower is a bolt on to the upper drive, would be SS tubing that has a lower scup pickup and a head to spray the water on the drives top.
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Old 10-14-2017, 11:38 PM   #24
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I don't know about the drive shower. Where would I see it?

According to the mechanic it should have been changed three seasons ago. I reduced the price accordingly, but hopefully no surprises lurking in there. Going to get it done ASAP.
there are 2 types of showers... here are pic's
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File Type: jpg its-cool-main.jpg (166.5 KB, 3 views)
File Type: jpg 1.jpg (92.1 KB, 3 views)
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Old 10-15-2017, 04:10 AM   #25
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There is no reason a well maintained B III should ever need a shower.
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Old 10-15-2017, 04:14 AM   #26
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There is no reason a well maintained B III should ever need a shower.
Now that I've seen the pics, I know I don't have one. That said, the aftermarket uptake isn't recent and the engine has 766 hours on it with no apparent drive issues. Maybe this is an issue in hotter climates?

I would think immersion of the lower end of the drive would provide plenty of cooling.
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Old 10-15-2017, 04:31 AM   #27
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Typically when one does the modification you have the block off plate is on the inside water passage and the outside hose is cut which allows water pressure to push water through the lower intake then through the drive and out the cut hose.
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Old 10-15-2017, 07:13 PM   #28
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The transmission is not submerged when under way.
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Old 10-16-2017, 01:55 PM   #29
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Yes, the drive ABSOLUTELY needs a drive shower if the drive intake is blocked off. Yes, it is because once up on plane the drive is out of the water from the anti-ventilation plate up. The water being drawn through the drive cools the outdrive. absent water there is no cooling of the drive on the upper half of the outdrive.

So someone did a hack job to solve a blocked intake problem. The proper solution would have been to either replace the transom assembly, or do what was done on your boat AND add a transom shower. This sounds like a shadetree mechanic had his hands on this boat.
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