My 2001 GTX RFI hull has been slowly filling with water when sitting without the engine running. The bilge can usually empty small amounts if I run it before putting it back on the lift. There are no performance issues or cavitation. I lowered it on the lift today and watched and listened. After about 2 minutes (engine was never started), I noticed the water start to drip behind the flywheel. I could put my hand under the flywheel and feel the dripping. I've poked around the forum and haven't really seen this exact condition explained. Thoughts? Could a carbon seal leak cause water to drip on the other side of the flywheel?
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2001 GTX RFI Water Leak
- Thread starter Levey
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No, the carbon seal only leaks at the seal and wear ring face. I had one leak and it nearly sank my ski!
Is it possible you have a crack/fracture in the hull causing water to squirts up into the bottom of the engine then run down to where the flywheel is?
I don't think it's possible for water to flow up from the jetpump, through the hoses and into the engine while it just sits there .
I'm not familiar with your ski but I have 2 GTI LE RFI'S and figure it would be a similar set up.
Is it possible you have a crack/fracture in the hull causing water to squirts up into the bottom of the engine then run down to where the flywheel is?
I don't think it's possible for water to flow up from the jetpump, through the hoses and into the engine while it just sits there .
I'm not familiar with your ski but I have 2 GTI LE RFI'S and figure it would be a similar set up.
So can you verify if it is leaking somewhere on the driveshaft? It could be the o-rings on the stainless hat that seals the driveshaft and not exactly the carbon seal.
If it is coming from under the engine it could be the case cooler that the injected skis use.
If it is coming from under the engine it could be the case cooler that the injected skis use.
DavesNotHereMan
Active Member
I have a similar problem with my 01 GTX RFI. I had a thread on this last year and can't find it right now (Tapatalk?). I tried everything to locate that leak. It also looked like it was coming from the flywheel area, and thought it was the drain hose located on the bottom of the engine on the starboard side, right near the PTO. Replaced that and used SS clamps instead of zip ties. Well, not it, but you may want to check that since it is the drain and low point of the cooling system. I take on about 1/2 gal of water per minute. Finally took it to my repair guy. They put it in the tank and found no leaks; sitting or running. I left it over the winter and they are testing it in the lake as we speak.
I am afraid that is, in fact, the water channel cover on the bottom of the motor.
I will report back when we find out what it is, as it might help you. I am supposed to call on Tuesday for a Thursday pickup.
I am afraid that is, in fact, the water channel cover on the bottom of the motor.
I will report back when we find out what it is, as it might help you. I am supposed to call on Tuesday for a Thursday pickup.
DavesNotHereMan
Active Member
wfo speedracer
Active Member
The case coolers on the bottom of the engine can leak, usually this is from the ski not being winterized properly, the water left in the cooler freezes and distorts the case cooler, water can enter through the cooler exit line while the boat is sitting in the water and leaks into the hull through the damaged cooler, I have replaced several of these over the years, the part is only about thirty bucks but you have to pull the engine to replace it.
Can I put in a large capacity bilge pump to keep up with the water,,, without further damage to the engine? Thanks
wfo speedracer
Active Member
Possibly but that's kinda like putting a bandaid on gunshot wound.
wfo speedracer
Active Member
It's really not that big of a deal, I think it took me maybe two hours in and out, as lon as you keep the shims in their respective locations no need to reshim the engine.
DavesNotHereMan
Active Member
I ran mine for the 10 - 15 mins it took to get to the ramp. Problem is water in the electronics. When the depth gets to the bottom of the PTO, the PTO picks it up like a waterwheel and it splashes into the shroud and puts a mist everywhere.
benjilafouine
Well-Known Member
I'd say that if it is taking on water, I would never let it sit in the water for too long. Even if you install another pump, you can never be sure when your battery will decide not to work (and then filling with water).
If it was mine, I would definitely have it fixed ASAP.
Benji.
If it was mine, I would definitely have it fixed ASAP.
Benji.
DavesNotHereMan
Active Member
Well, guys. I picked my 01 GTX RFI up today. Everything was tested one component at a time and no leaks were found. They removed the pump assy to check for O rings, the driveshaft to check for bumpers, pressurized the cooling system, checked the preload on the Carbon Ring, tested the siphons, replaced the O rings on the drain plugs, found an internal issue on the water regulator that affects performance ( I didn't see it, yet) but not the source of the 1/2 gal per minute leak that I saw earlier, filled the hull internally and checked the hull for leaks; A few slow drips from the sponsons, nothing thru the other thru-hulls. Put it back together and Somehow the problem is solved. Put it in the water today and all I have is maybe 1/4 inch of water to the bottom of the syphons. The only thing we can figure is that there had to be some kind of alignment issue when we rebuilt and reinstalled the pump last year. All bolts were torqued to spec on that reassembly, but the removal and replacement was all that was done.
Oh, sweet mystery of life. The source must be that same force of nature that causes 10mm wrenches to completely disappear.
Oh, sweet mystery of life. The source must be that same force of nature that causes 10mm wrenches to completely disappear.
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