Did I Blow it or What?

[fabriccarolina]

Just got finished putting black fuels lines on my 96 GTI's as well as new fuel floats in the baffle. I couldn't have done it without the great help from this site and its members. I headed to the lake on Friday for a test on the water. One of my doo's was hesitant and didn't run smoothly. I just thought it was cold and might need to warm up. After 15 minutes of slight sputtering I gunned it and it shut down almost like it had no fuel. The starter would not turn the motor at all. I pulled the plugs on the water and couldn't get the flywheel on the rear of the engine to turn by hand. Oil level was 50% in the tank. I can see oil in the lines. So...could this have anything to do with a missed step I left out when I changed the fuel lines? Or just bad timing on a motor that might have needed a rebuild. It ran like a champ last year. Where 2 from here?

 

[All Things Custom]

Sounds like bad timing.... did you clean the internal carb filters after changing the lines?

try to turn it now that it has cooled, you may have gotten lucky and had a mild lean seize. meaning the motor was running super lean, heated up enough to freeze the pistons (aluminum pistons expand in the cylinders when they get hot) if this is all that happened you will need to inspect the pistons and repair just the top end.

Also make sure there isnt anything in the pump or impeller... if you had a rope or a freezing pump it would act just the same. I suggest removing the pump as a first step and try to turn the motor over again... let us know.

 

[fabriccarolina]

Carb Filters

Carb Filters were cleaned. Funny thing also, as soon as it did this I pulled the seat to feel the top of the motor and it was comfortable enough to leave my hand on it. I would have thought after 15 minutes it would have burned me or at least been uncomfortable to the touch.

 

[timmyboy76]

think you got bigger isssues, than a clogged fuel filter...

 

[fabriccarolina]

Affirmative

think you got bigger isssues, than a clogged fuel filter...

Affirmative.

 

[All Things Custom]

did you pull the pump like I said and check the impeller?

 

[fabriccarolina]

Rain

did you pull the pump like I said and check the impeller?

Not yet. Rain Rain go away. I will let you know.

 

[fabriccarolina]

Pull The Pump

I've got the manuals, but was wondering what is the best/simplest way to "pull the pump" from the motor?

 

[All Things Custom]

Just pull tyhe steering and VTS (if you have it) 10 mm bolts... then the 4 pump bolts.

disconnect the 3 lines in the hull connected to the pump and pull the pump streight back. it will be tough as it is probably siliconed to the hull but will come.

then turn the pto to see if its just the motor.

 

[fabriccarolina]

In The Motor

Just pull tyhe steering and VTS (if you have it) 10 mm bolts... then the 4 pump bolts.

disconnect the 3 lines in the hull connected to the pump and pull the pump streight back. it will be tough as it is probably siliconed to the hull but will come.

then turn the pto to see if its just the motor.

Pulled off the pump tonight and the pto wheel is still tight as ever. So I guess I need to start my pulling the head off and digging into the motor. Is there any certain steps from here?. I think I could handle a top-end rebuild...maybe...

Any thoughts welcome.

 

[fabriccarolina]

Top End Front Piston Problem

Hi,
I've dug in and at least found part of my problems. The front piston is trashed. I know we need a top end rebuild kit, who knows whats underneath. Can anyone tell from the picture's any "symptoms" that may have caused this? The rear piston appears black and not torn up yet. While the front is shiny and torn to pieces. Also the head got mangled a bit (2nd Pic). I'm not sure of the age of the motor from a rebuilt standpoint...possibly never. I broke 3 of the bolts off on the front cylinder as well. I guess I'll keep unbolting.

 

[fabriccarolina]

Maybe More? Worse.

It just got worse. I can only turn the crank about an inch. And there are a ton of metal shavings off to the side of the piston. I wonder how many of these are in the bottom of the motor? ALSO...the rear piston is up high enough and I can see a clear liquid floating in the bottom of the motor. H2O? I'm not very good at this, but that ain't good. Here's a picture attempting to show the metal shavings on the front side of the motor.

Where in the world should I go from here.

 

[Richard Naugle]

hi bud sorry to hear about your trouble
although i don't have much experience with seadoo's i can say that what you have here is very much the same as the damage i repaired on my 60hp johnson last year.
my trouble was a scored and burnt piston and cylinder and broken rings caused by a lean run which in turn was caused by a buddy running automotive carb cleaner..not a good idea on a 2 stroke ..anyhow we only replaced one piston and a set of rings lightly honed the cylinder wall and dressed the head by hand with emery cloth.from what i can tell yours is no worse than mine was last year and i ended up with 120 psi on the rebuilt cylinder.. good luck