Please Help.. Water pressure regulator leaking with replaced bellow

[Marc 123]

any help would be appreciated…

i just took my 1998 seadoo GSX limited with the 951 out and noticed that the rubber was melting/smoking that connects the exhaust to the water box…

I took it home and hooked it up to a hose and noticed it was dripping water at the top of the water box.

I replaced the bellow, the bottom rubber piece that is connected with a clamp, becuase it had a pen size hole in it and put it back together along with blowing all the water lines out becuase I did see a small rock inside of the water pressure regulator housing and noticed that only one pee hole (back of ski where tow hook is) was releasing water…

now that it is all back together, it is still dripping from the top of the water pressure regulator housing, similar to what is was doing prior to replacing the bellow, and water is only coming out of one pee hole.

Does anyone have a clue on what might be causing the water pressure regulator to leak? Is there a certain way the water pressure regulator needs to be installed? I screwed it back together all the way in and I have tried doing it 3.5 turns and It still leaks water…. Fast drip.

I have provided pictures of how it looks now that it is replaced and how the housing looks.

thank you everyone for reading!

 

[etemplet]

I use ultra gray RTV to secure that bushing inside the water control valve. Another member installs an O-ring to seal the outside diameter of the bushing. That might be the source of you water leak.

If your hose melted you're not getting cooling water down the exhaust pipe. All of those parts should be slighty warm with the engine running... not so hot that they MELT things.

 

[Marc 123]

I use ultra gray RTV to secure that bushing inside the water control valve. Another member installs an O-ring to seal the outside diameter of the bushing. That might be the source of you water leak.

If your hose melted you're not getting cooling water down the exhaust pipe. All of those parts should be slighty warm with the engine running... not so hot that they MELT things.

I’m going to try using the ultra gray RTV, where exactly should I apply it to secure the bushing inside the water control valve?

thank you for your reply!

 

[etemplet]

You just want to seal the perimeter of the bushing. Don't put too much but put enough. LOL

 

[Marc 123]

You just want to seal the perimeter of the bushing. Don't put too much but put enough. LOL

What exactly is the bushing? Lol sorry I’m not too familiar with the terminology on these things…

also, do I screw in that flat head screw all the way in?

i appreciate your help!

 

[etemplet]

This part should stay inside the valve. This is likely what is leaking.

 

[POPPS]

Did you run a thin piece of mechanics wire thru the fittindg into the water box to make sure it is clear? ,how in the world can you get a rock in there???

 

[etemplet]

I wish I understood how this valve works. All I do is make sure the hoses are hooked up correctly and there are no leaks. LOL

HERE is a thread where I had questions about i and it was discussed. Good info.

 

[Marc 123]

Did you run a thin piece of mechanics wire thru the fittindg into the water box to make sure it is clear? ,how in the world can you get a rock in there???

I pushed a thin 2 inch nail through it and it was clear and I have no idea lol

 

[Marc 123]

This part should stay inside the valve. This is likely what is leaking.

Thank you sir!

 

[etemplet]

@Marc 123 a leaking WCV will cause a loss of Max RPM. What I've read on the forum is about 400RPM from top speed which is a good bit. When working correctly they make a difference. I've used an O-Ring to secure the smaller diameter of the bellows close to the bushing. Just make sure it fits tight. They are dang proud of those springs and clamps. Yikes Here are some pictures I took of one of mine. I always check that spring size... you never know sometimes people put anything in there. LOL Good Luck !

 

[POPPS]

That valve serves 2 purposes,,,1, it always supplies water to the exhaust/waterbox to cool the exhaust and prevent the xhaust hose from. "Collapsing inside itself",,,and 2,,,it supplies water to the front pipe at low rpms to get the boat out of the hole quicker,,,as the boat goes faster, the water pressure blocks the orifice to the front pipe,,,thus allowing it rev out,,,the water spray at low rpms slows down the exhaust wave,,,changing the characteristics of the "tuned pipe,",,,it makes the pipe seem longer,,which helps low end,,,if the valve did not shut off at higher rpm/water pressure,,the boat would lose top end.

 

[etemplet]

Thanks Popps !! I'm a motorcycle guy, LOL this water stuff is a mystery to me. Ha ha.

 

[Marc 123]

Okay, so I got the water control valve to stop leaking while on the hose with the o-ring method!

But I’m l still seeing only one pee hole release water… is this normal?

If I remember correctly both would release water on the hose….

 

[etemplet]

I generally only see one hole spraying water out of the back of the skis. It's a tattle tale so I don't see a reason to have more than one. You never know what previous owners or mechanics did to thee skis.

 

[Marc 123]

I generally only see one hole spraying water out of the back of the skis. It's a tattle tale so I don't see a reason to have more than one. You never know what previous owners or mechanics did to thee skis.

Mine has two pee holes! Figured out why only one was releasing water— the dealer put the top water hoses on backwards!! Also contributing to the over heating!

 

[etemplet]

I'm gonna check the RFI.... only one is peeing. I had ZERO peeing but the hose was plugged. Might be the problem with the other one. Glad you fount it. You're right the pisser also acts to remove air from the system. It's all about temperature with these things. If you can't put your hand on it when it is running, something is wrong. Good Catch !

 

[Marc 123]

This diagram helped me find out that the two blue hoses were swapped. The one I’m pointing had no water traveling through it to the pisser and it was hot. After I swapped them back, both pissers work.

 

[mredfield]

I have a stock 96xp and am getting lots of water coming from under the waterbox regulator valve cap at high RPM's. I've already rebuilt it twice and it still leaks. I was able to fit an o-ring in the groove of the plastic bushing and pressed it into the housing. Hopefully this solves the problem as we are going to the river for a week and I don't want to be running the bulge pump continually

 

[Marc 123]

I have a stock 96xp and am getting lots of water coming from under the waterbox regulator valve cap at high RPM's. I've already rebuilt it twice and it still leaks. I was able to fit an o-ring in the groove of the plastic bushing and pressed it into the housing. Hopefully this solves the problem as we are going to the river for a week and I don't want to be running the bulge pump continually

The o ring resolved the problem for myself. Good luck!

 

[Venforcer]

The water that is being supplied to the expansion chamber from the valve can’t shut off completely at full throttle right. If it did you would burn up the hose that connects the tuned pipe to muffler. My understanding there should always be a small amount of water being injected into the front of the tuned pipe at full throttle.

 

[Stealth800]

Yes. My understanding is it reduces flow but still flows water.

 

[Venforcer]

That’s my understanding too. When the dealer winterised it last fall they reconnected the hoses going to the head in reverse order. When I rode it the first time this summer it cooked the rubber hose between the tuned pipe and the muffler. I will be winterising it myself this fall.