• Welcome to Jetboaters.net!

    We are delighted you have found your way to the best Jet Boaters Forum on the internet! Please consider Signing Up so that you can enjoy all the features and offers on the forum. We have members with boats from all the major manufacturers including Yamaha, Seadoo, Scarab and Chaparral. We don't email you SPAM, and the site is totally non-commercial. So what's to lose? IT IS FREE!

    Membership allows you to ask questions (no matter how mundane), meet up with other jet boaters, see full images (not just thumbnails), browse the member map and qualifies you for members only discounts offered by vendors who run specials for our members only! (It also gets rid of this banner!)

    free hit counter

2004 Yamaha sx230 Water In oIl

I saw someone else had a boat that started itself, I would recommend searching the threads pretty hard to find it. I really can't remember the fix, but I do clearly remember someone having the same issue.

Glad you found your water ingestion issue!!
 
Brad_Ct said:
How badly corroded are the sealing surfaces on the exhaust? Ours were really bad and I had to replace the elbow and pipe also.
Click to expand...
It is not to bad I am going to clean it up aswell as use a little sealant when I re install just lot of surface corrosion no deep pitting.
 
dgfreeze said:
I saw someone else had a boat that started itself, I would recommend searching the threads pretty hard to find it. I really can't remember the fix, but I do clearly remember someone having the same issue.

Glad you found your water ingestion issue!!
Click to expand...
I am pre sure its the ignition switch also have some other electrical issues with my tachs if I start 1 engine tac will work for like 60s then stop if I bump the key for the other engine the tac works again? whatever engine is off if I bump the key it will work again hard to explain but that's for another post/day ahah
 
Does this boat have water separators or fuel filters anywhere like the jet skis do? I don't see any would expect at least water separator no?
 
It does not appear to have an oil separator. Not sure if that is what you are referring to.
 
jws123 said:
Does this boat have water separators or fuel filters anywhere like the jet skis do? I don't see any would expect at least water separator no?
Click to expand...
The only fuel filters that I know of are in the inlet of the fuel pumps.
 
WREKS said:
It does not appear to have an oil separator. Not sure if that is what you are referring to.
Click to expand...

was talking about Fuel/water separator not oil most boats have them Kind of surprised this doesn't wonder if its possible to add one.
 
You can very easily add a fuel water sep to about any boat. Both yamaha and mercury make the kit. Just goes inline and mounts to a bulkhead
 
Just got it all back together new seal and boot pressure tested it still leaks something is not sitting right going to tear it apart 1 more time and try to fix again before I sell the fking thing or buy a whole exhaust off someone.
 
Your posted compression readings seemed low. Also, the time to do leakdown test is when engine is out and exhaust manifolds are removed.
 
WREKS said:
Your posted compression readings seemed low. Also, the time to do leakdown test is when engine is out and exhaust manifolds are removed.
Click to expand...

I am certain at this point it is a exhaust issue from my tests I am this close to just pulling the motor again its so hard to work on it in the boat and to be fair when I did compression check the engine never really ran much with the new rings will do another one now that it has ran a bit. And it still shoots air out cylinders when I pressurize system maybe I didnt click the pipe back in all the way when I replaced the seal at least i hope its this simple.
 
Last edited:
Pulling motor makes exhaust work much easier. In fact it was the only way I could work on my 2007 SX 230.
 
Yep it didnt seal i made sure the big gasket sealed and with some gasket maker engines coming out to see wtf whatever it is its a HUGE leak in the exhaust somewhere has to be a hole or something or maybe wrong exhaust gasket somewhere.
 
jws123 said:
I am certain at this point it is a exhaust issue from my tests I am this close to just pulling the motor again its so hard to work on it in the boat and to be fair when I did compression check the engine never really ran much with the new rings will do another one now that it has ran a bit. And it still shoots air out cylinders when I pressurize system maybe I didnt click the pipe back in all the way when I replaced the seal at least i hope its this simple.
Click to expand...
Is your water box still connected to the exhaust? If it is disconnect it at the rubber boot in the engine compartment then do the pressure test on the exhaust.
 
Brad_Ct said:
Is your water box still connected to the exhaust? If it is disconnect it at the rubber boot in the engine compartment then do the pressure test on the exhaust.
Click to expand...

It is I will try this but as it is now i pressurize the system and re connect the line to the big boot air comes out my cylinders threw the exhaust ports on whatever valve is open at the time. at what point does exhaust and water mix in the pipes?
 
Edit: Not at big boot but before it enters water box at #14 in diagram. Six holes in pipe flange, 3 to bolt it to exhaust and three for water passage into hot exhaust.
 

Attachments

  • Where water and exhaust combine.png
    Where water and exhaust combine.png
    181.5 KB · Views: 15
WREKS said:
Edit: Not at big boot but before it enters water box at #14 in diagram. Six holes in pipe flange, 3 to bolt it to exhaust and three for water passage into hot exhaust.
Click to expand...
Oh ok thanks.
 
You must log in or register to reply here.
Back
Top