How to set up XPDI for surf ???

[Spike]

My first time in the Surf with the XPDI and water gets in. What do I need to do to keep the water out of the engine?

[Technical Support]

Re: How to set up XPDI for surf ???

Install a bilge pump.

[1fastski.com]

Re: How to set up XPDI for surf ???

for ALL XPLs go to homedepo ect and get some good weather striping , put it on the bottom of your hood or tray { what ever one dont have the seal on it } and for the ones that have the tubes in front make sure there pulled up 2 inches so they go up into the hood when its shut , that will keep most of the water out .

[Spike]

Re: How to set up XPDI for surf ???

No holes in the front, just the one where the cable goes through and its got a seal. There is a thin weatherstrip under the storage but I'll try some thicker stuff.

I already have a bilge

Wondering if I should remove the air box or relocate the intake somehow.

[yogibear49341]

Re: How to set up XPDI for surf ???

I have dual automatic bilge pumps in the back, blocked holes in the front, and some awesome whether stripping in the front, and so far, no water problems.

I have had water slam me in the face from a half submarine, so that should be enough protection.

[lbrider]

Re: How to set up XPDI for surf ???

I have dual automatic bilge pumps in the back, blocked holes in the front, and some awesome whether stripping in the front, and so far, no water problems.

I have had water slam me in the face from a half submarine, so that should be enough protection.

if your still around, where did you get the "awesome" weatherstripping? the HD stuff seems to lack a little. also, i have some blockoff plates i got from waterworx and i know everone says the nose vent holes are unnec, but i'm wondering if anyone had other views.

i realize that seadoo didn't put the holes on later xp's, but didn't they have extra vent holes back by the gas tank filler?

i think the other logic people were using was the those two holes were more like exit holes while the the two just aft of the compartment were the forced intake types... well, if those are forced intake, and there is no more exit (other than the carbs) wouldn't it make for a more stagnant engine compartment? you don't seem to have the "flow through" system anymore...

anybody have any ideas?

[lbrider]

Re: How to set up XPDI for surf ???

bill, you know sea doo better than most, do you have any opion on blocking these front vents off?

[dsolie]

Re: How to set up XPDI for surf ???

I have done it on my 99XPL. It does not seems to starve the engine at all. You still have the two holes located at the latch side of the hood too. I did make those bigger though.

[Bill O'Neal2]

Re: How to set up XPDI for surf ???

Opinion? SD should have never put them there in the first place. Block em' off.

[Spike]

Re: How to set up XPDI for surf ???

I put a better seal under the storage tray and relocated the large air inlet hoses. One of them was letting air in on top of the pto cover 2 1/2 in. away from the air box inlet. I replaced the tubes with longer ones and put them further away from the air box.


There must be someting else going on, I do not see much water in the engine compartment, but the thing keeps bogging in the surf only. After jumping a while the boat just does not want to run it will idle and go around 3000 rpm It takes a while to clear up, the rpms gradually increase but tossing it back and forth the problem comes back for a while. If I keep it on top of the water for 10-15 min at wot it clears up.

Could water be trapped in the air box? Anything else I need to do make the XP DI surf proof?

[Spike]

Re: How to set up XPDI for surf ???

Any more Ideas? air box or air pump? I really need to have this surf proof, please help if you can.

Thanks, Mike

[Technical Support]

Re: How to set up XPDI for surf ???

You will never make an XP surf-proof, it's just not the right design, you are fighting the whole ski. Flame arrestors with outerwears will help as far as ingestion, but if you use the XP for heavy surf, there is a huge chance of water damage.

[1fastski.com]

Re: How to set up XPDI for surf ???

as you can tell by my pic :-) when i ride i rind in the surf , the only problem ever with jumping and bogging was water splashing up into the carbs , block off the front vents weather strip the hood tray , HOT wire your bilge pump so it runs all the time , or insatll a extra one hot wired , just put a plug on it so its hot on the battery , it will com on every 20 sec if theres water it will get it out , it seems when there hooked to the MPEM for power they dont work as good .

[Spike]

Re: How to set up XPDI for surf ???

I dont understand, when i have the problem I have moved out and checked under the tray only to find that water was splashed on top of the engine but nothing measurable in the bilge. It takes a minute or so sometimes to get to where I can check it though maybey the electric pump moves it out before I can get to see it?

I did some testing in the driveway with a hose. The tray is sealed good. Starting with a dry engine compartment, I sprayed a good pressure stream along the seal on both sides and in the front stopping just before the seat. The enine was dry.

Then I sprayed the area around the gas fill and from behind the seat. The engine was wet. Water was getting in where the gas fill tube was loose so I tightened up and went back to the ocean. STILL bogs but it seemed to take longer.

Still trying Never say Never!

[Bill O'Neal2]

Re: How to set up XPDI for surf ???

Spike,
When you are sitting level in the water and looking into the engine compartment, the water is back under the gas tank and in the rear of the watercraft. When you ride the ski, the water splashes forward and hits whatever and splashes up and onto the motor.

Removing a pto cover and leaving it off will make it much worse, that is why SD puts them on there, not only to protect people from getting their hands and clothing caught, but the pto flywheel will sling water everywhere.

It does not take alot of water in the hull to splash around under accelleration, turning and deaccelleration.