2019 Yamaha 190 FSH Sport - leaks

[WhatMeHurry]

I have 5 hours on the new boat. I was sitting still in calm water and the bilge pump kicks in and pumps out a lot of water. My first inclination is that water is getting in the anchor locker thru hull. I'm thinking it would be better just to seal that hull opening. I'll never have a wet rope in the locker. I think it's a well meant design that ended stupid. Thoughts?

 

[twentiesforever]

That would be weird if that much water is getting in via the anchor locker and I thought it drained well. My SX240's anchor locker doesnt drain into the bilge. Is this different?

 

[Gym]

Mine doesn't drain into the bilge either. I'd put your boat on the trailer put 5 gallons of water in the bilge with pump off. View the boat from the stern to see if anything, like the scupper or gardboard is leaking. It's also possible you have a leaking cooling line due to a broken clamp.

 

[Elliott]

Although water can enter through the anchor locker drain, if there is gap (should be filled) with the hull, this water should only come in when going through waves. The anchor locker drain sits well above the water line. However, many of the Yamaha and other manufacturer boats will accumulate water in the bilge when exposed to rain in storage. There are lots of little places for rain water to drain down into the hull/bilge. Was you boat stored uncovered during several or a prolonged rain?

My FSH is stored at the marina in the stack without a cover; there is a roof (no walls) over the boat. If we have heavy or prolonged rains especially with wind, some (not much) water will accumulate in the bilge. However, it mostly drains off during its ride on the forklift. I do not believe that my bilge pump has ever activated. If it has not rained as described, my bilge is dry.

You might want to inspect your drain plugs and their seals.

 

[Dixie Highway]

I’ll agree with the feeling you are getting water from somewhere else. I have a 210 FSH, I did an experiment to verify the bilge pump was working by leveling the boat on the trailer and filling it with water from a garden hose. Took me at least 5 minutes of running the hose full blast (3 ish gpm) before I even got the pump to kick on. The anchor locker drain leaks I’ve seen were relatively minor, but I sealed up around the drain with some 5200 just to be safe. When my boat was new I’d get 1-2 gal of water out the drain plug after a few hours in the water, once I started lubing the o-ring with glycerin before installing it I get a few drips.

 

[JDinfla]

Probably water coming in your clean out tube. You'll have to check. Check that the drain plugs are sealed.

 

[Grover70]

I have 5 hours on the new boat. I was sitting still in calm water and the bilge pump kicks in and pumps out a lot of water. My first inclination is that water is getting in the anchor locker thru hull. I'm thinking it would be better just to seal that hull opening. I'll never have a wet rope in the locker. I think it's a well meant design that ended stupid. Thoughts?

There's a huge amount of information (too much of it posted by me!) on the leaky 190 FSH on the 190/210 forum. If you were just sitting there and water wasn't in direct contact with the anchor locker plug (which leaks too), it was likely a poor, or no seal, on the drain plugs. When I found water coming in through the drain plugs INTO the changing room from the bilge, because they were only screwed in, I thought it was likely the two stern drain plugs were also just screwed in. Well, much to my chagrin, they were both barely sealed and let in plenty of water. After sealing the stern drain plugs, the anchor drain, and the hatch in the wet locker, I have a completely dry bilge. I almost forget it's there! Also, water can get into the changing room from the two forward hatches when you wash down the boat. It drains to a port-side opening just above where your trolling motor batteries would be.

 

[WhatMeHurry]

Probably water coming in your clean out tube. You'll have to check. Check that the drain plugs are sealed.

I plan to check the drain plugs for debris an a good seal. I don't know what the clean out tube is though.

 

[WhatMeHurry]

The service manager suggested plugging the anchor locker thru hull as a test. He said they will check drain plugs etc. at my 10 hr service

 

[Grover70]

I plan to check the drain plugs for debris an a good seal. I don't know what the clean out tube is though.

I think JDinfla is referring to the tube your clean out plug sits inside. In the wet locker there's the clean out tube, the tray that lifts up, and the drain. I found there was hardly any silicon around the edges of the tray that are held down by screws. I unscrewed that out and sealed it. Then I put a strip of marine weather seal (similar to the stuff you have on the edge of your front door at home) around the outside and up against the tray that lifts out so you can access the interior of the stern from above. This stopped water from going down into the bilge from two places. It's typical for water to fill the clean out tube, flood the wet locker, then drip into the bilge around the tray edges when they're not sealed.

 

[WhatMeHurry]

I think JDinfla is referring to the tube your clean out plug sits inside. In the wet locker there's the clean out tube, the tray that lifts up, and the drain. I found there was hardly any silicon around the edges of the tray that are held down by screws. I unscrewed that out and sealed it. Then I put a strip of marine weather seal (similar to the stuff you have on the edge of your front door at home) around the outside and up against the tray that lifts out so you can access the interior of the stern from above. This stopped water from going down into the bilge from two places. It's typical for water to fill the clean out tube, flood the wet locker, then drip into the bilge around the tray edges when they're not sealed.

I'll give this a try too!