-
This site contains eBay affiliate links for which Sea-Doo Forum may be compensated.
waterbox rave
- Thread starter wampaku
- Start date
- Status
It's clean but I question the body. From taking it apart according to the manual, there's a piece that comes off and I don't think it should. The clamp that needs to be loosened to remove the rubber piece from the body, that piece of the body comes out of it's hole. Is that piece supposed to be permanently on there or does it come off?
Try to describe it again...I'm not quite sure what you are saying.
Basically as long as it brittle, cracked, or a hole in it...its fine.
Basically as long as it brittle, cracked, or a hole in it...its fine.
n3k0de
Active Member
I think your talking about the Plastic Tube that the bellow clamps onto it goes into the larger plastic part and has a Hole were water would flow... I was thinking the same thing... It almost looks like its missing a o-ring to seal it down there. I dont think it runs off of pressure, but the force of water flowing.... I dunno. I think thats what your talkign about...
If you look at the part list.. I counted 12 parts and when I replaced the bellow I put back together 12 parts.
If you look at the part list.. I counted 12 parts and when I replaced the bellow I put back together 12 parts.
The Water Regulator adjustment knob (the red cap) should either be screwed all the way in or flush to the top of the black ring of the cap. This will only affect performance, as far as how it jumps out of the hole or how well it runs for extended periods at WOT.
Removal: You do not remove the exhaust to remove a rave valve on a 787. You just remove the cap and bailer wire, remove the diaphram retaining spring, unscrew the diaphram piston from the rave valve stem, then remove the diaphram, then the housing, then the rave valve from the clyinder. Takes 5 minutes.
The valve on the waterbox is not a RAVE VALVE , it is a water controller, it puts in more water at low rpms and shuts it off at higher rpms, it will affect performance, and if it is not operating properly, usually the wire clip that holds the bottom of the diaghpram rusts up and eats a hole through the diaghpram. making the unit inoperable. Heres a TIP:
On the rave valves you can take the black plastic cap off and using a hole saw, drill a hole in the cap, then with it on the trailer and running you can rev the engine and see if it is opening up or not.Black oily residue leaking around the rave valves usually means time for a rebuild. If the raves are not opening up you will usually only get around 5000 rpms and your top end speed will be down about 10mph or so. At around 4400 rpm give or take, the rave valves open. It is very normal to be able to feel it when they open. It will be a surge of power. Also you can feel it when they close if held exactly at the right rpm.
By adding or reducing spring pressure with the adjusters, you sligthly change when the valves activate and sometimes that is just enough to eliminate a bog in the midrange. At the same time, the water regulator valve is starting to move, reducing water going into the pipe. Those two things together both effect torque output of the motor. If it hits too early, it will be sluggish, not bad, but a bit sluggish. If too late, you are wasting time getting to max rpm. It is a balancing act to get them in the perfect place. As water is reduced and the raves retract, the power band is moved from more low end power to the upper areas of the power band where rpm and the horsepower from those extra rpm replaces torque. Hope this helps
Last edited by a moderator:
Nemrod811
New Member
i took my watebox rave apart also on my 96 xp,the bellow and the part that the bellow is clipped to just pops out real easy i found that odd so i took the one off my gsx and its in there real good i have to push it out from the bottom of the housing.seems like the washer thats at the bottom fits snug but the xps doesnt.which way is it supposed to be?
- Status
