Wet carpet issue

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   Hi folks this is my first posting. Hoping to get an easy solution to this odd situation. 

Have a 1995 SN with a GT 40 643 hrs. Owned it since 2000 with 40hrs. 
The carpet just to the left of where my feet sit while driving is wet (like pouring a 16oz cup of water kind of wet). I have emptied a small bit of water from the battery compartment and checked the cooler as well. 

All I can come up with at this point would be maybe a leaking heater hose running under the floorboards to the front heater core? Seems pretty far fetched but… I also placed a towel down and soaked it up while the boat was docked. Stayed dry until the next morning after a pull. No rain and no one putting a wet vest or towel in the area. Sorry for the long description. 
Any help would be appreciated. 

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MZiggy Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: June-13-2023 Location: Washington Status: Offline Points: 4	Post Options Post Reply Quote MZiggy Report Post Thanks(0) Quote Reply Topic: Wet carpet issue Posted: July-15-2023 at 2:26pm
	Hi folks this is my first posting. Hoping to get an easy solution to this odd situation. Have a 1995 SN with a GT 40 643 hrs. Owned it since 2000 with 40hrs. The carpet just to the left of where my feet sit while driving is wet (like pouring a 16oz cup of water kind of wet). I have emptied a small bit of water from the battery compartment and checked the cooler as well. All I can come up with at this point would be maybe a leaking heater hose running under the floorboards to the front heater core? Seems pretty far fetched but… I also placed a towel down and soaked it up while the boat was docked. Stayed dry until the next morning after a pull. No rain and no one putting a wet vest or towel in the area. Sorry for the long description. Any help would be appreciated.

gun-driver Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: July-18-2008 Location: Pittsburgh, Pa Status: Offline Points: 4127	Post Options Post Reply Quote gun-driver Report Post Thanks(0) Quote Reply Posted: July-15-2023 at 4:25pm
	If it’s not dripping from the dash area that rules out a leaking speedo, so my bet would be the heater core.

KENO Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 11162	Post Options Post Reply Quote KENO Report Post Thanks(0) Quote Reply Posted: July-15-2023 at 5:35pm
	Since you suspect the heater and hot water from the engine goes to the heater, is the water you're getting on the carpet kinda warm?

Ziggy Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: July-28-2022 Location: Washington Status: Offline Points: 4	Post Options Post Reply Quote Ziggy Report Post Thanks(0) Quote Reply Posted: July-16-2023 at 1:35am
	Did not think about the speedos. I’ll check them. Also the water has been cool never warm. Thanks

KENO Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 11162	Post Options Post Reply Quote KENO Report Post Thanks(0) Quote Reply Posted: July-16-2023 at 7:56am
	Maybe that'll be the easy solution you were looking for. For a quick check, flip your pitot tubes up and you won't get any pressure in the tubing or speedometers and see if the leak goes away

Ziggy Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: July-28-2022 Location: Washington Status: Offline Points: 4	Post Options Post Reply Quote Ziggy Report Post Thanks(0) Quote Reply Posted: July-16-2023 at 12:00pm
	Will do that next time it’s in the water. Thanks

Ziggy Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: July-28-2022 Location: Washington Status: Offline Points: 4	Post Options Post Reply Quote Ziggy Report Post Thanks(0) Quote Reply Posted: July-16-2023 at 2:58pm
	Got home from our trip so checking for a leaky Speedo was a challenge but think we gave it a pretty good shot. Opened up the dash pod to view the back side. Took off the pick up tubes at the stern and shot a steady stream of water in them. Enough to get the boat to go 35 mph sitting on the trailer😉. No leaks. Kinda bummed out as I really wanted this to be the issue. Especially since the idea of chasing a leak in the heater core hoses does not sound like fun.

KENO Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: June-06-2004 Location: United States Status: Offline Points: 11162	Post Options Post Reply Quote KENO Report Post Thanks(0) Quote Reply Posted: July-16-2023 at 6:47pm
	Since you haven't given up on the heater, find the 2 hoses that connect to the engine. The supply is most likely on top of the intake manifold probably with an isolation valve to stop flow. The return will probably go to a wye type connection that hooks to the engine in the vicinity of the water pump. If you disconnect both ends and plug the holes with appropriate fittings that you can get at a hardware store/ home Depot etc, then you can run the engine without the heater hoses having any flow or while it's on the trailer you can hook a garden hose to the heater supply and flow some water thru it and see if your floor gets wet. Get a look at the heater core itself, probably not far from your feet If that doesn't get you some wetness, then you're into bigger, tougher issues

Ziggy Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: July-28-2022 Location: Washington Status: Offline Points: 4	Post Options Post Reply Quote Ziggy Report Post Thanks(0) Quote Reply Posted: July-16-2023 at 8:20pm
	Thanks for the suggestion. That’s the next step on my list but I do like the bypass idea. Also thought about disconnecting both ends and pressurizing the loop of hose to and from the heater to say, 10 psi and see it it bleeds down, indicating a leak.

Wet carpet issue

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