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Half-Full Bilge Q |
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JHadji 
Groupie 
Joined: August-18-2006 Location: Pittsburgh, PA Status: Offline Points: 77 |
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 Topic: Half-Full Bilge QPosted: September-03-2024 at 3:14pm |
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I have a question for the gallery of experts. I took my father-in-law for a tour of Pittsburgh from the water over the wknd. No skiing, tubing, footing or anything, just a cruise.
When I pulled her out, the bilge was kinda full. Yet, I see no leaks when I run her stationary in the driveway. Qs: Does water infiltrate through cracks and microcracks in the hull? What's normal at the shaft seals for the rudder and prop? Does this change if just floating vs. under power? We're usually in and out w dripping lifejackets, skis, w-boards and tubes, so I never gave it a thought. This was surprising. I'm curious to others' experience. Thanks for any ideas!
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1988SkiNautique2001
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MrMcD
Grand Poobah 
Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3750 |
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Posted: September-03-2024 at 6:04pm |
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I would first check the shaft log seal to see if it is dry or pouring water. Boat has to be in the water to inspect it. Normal would be something like 6-10 drips of water per minute with it idling in gear. Put it in neutral and you should have zero drips per minute. IF your hull goes into the water dry and on inspection you see water running down from the stern into the bilge the leak is back there. Maybe the rudder seal but you have to look and see to find these things but I think these would be the first places to check.
Second thought, look at every hose in the cooling system and make sure they are not leaking while you operate. Check from the inlet at the bottom of the boat to the filter, tranny cooler on to the engine. With a simple cruise like you did the boat should be dry or very minimal water inside. ( maybe a cupful or less )
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Jonny Quest
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Joined: August-20-2013 Location: Utah--via Texas Status: Offline Points: 2981 |
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Posted: September-03-2024 at 6:56pm |
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McD is on target. Water intrusion spots:
Drive Shaft Seal Rudder Shaft Seal Raw Water Pump Leak Water Circulation Pump Leak Hose / Connections Leak Mufler Leak If you have a shower and/or heater, these hoses can leak. I had a leak in the hot water hose for the shower and it was surprising how much water was pumping into the bilge. JQ
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2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum |
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Morfoot
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Joined: February-06-2004 Location: South Lanier Status: Offline Points: 5320 |
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Posted: September-04-2024 at 5:44am |
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Add Bow eyelet to the mix. If you did a lot of fast idling and the bow eye isn't sealed up properly, you'll get water intrusion there. I had lifejackets and beach bags with towels in them soaked and couldn't figure out why. I finally crawled in the bow while my wife was driving at idle speed and water was trickling in pretty heavy at idle. Pulled the bow eye out, reinstalled gooped up with sealant and tightened it back up. Leak check OK. Fixed the issue.
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"Morfoot; He can ski. He can wakeboard.He can cook chicken.He can create his own self-named beverage, & can also apparently fly. A man of many talents."72 Mustang "Kermit",88 SN Miss Scarlett, 99 SN "Sherman"
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