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2011 GTX cracked engine?

jlbost3

New Member
Today I purchased a 2011 Seadoo GTX. I knew that it did not run but it did turn over with a jump pack. Brought it home, hooked it up to the garden hose and tried to crank it. It would not turn over. Removed the spark plugs and found lots of water in the cylinders. Engine would spin freely and ejected lots of water. Put the spark plugs back in and tried to crank with hose running. It filled up with water again. Removed plugs and vacuumed water out. Tried to crank again with plugs installed and no water running. Would not turn over. Is there any way that the engine is not cracked somewhere?
 
Never run the water without the engine running. It backflows through the enhaust if it is not running. You can get owner's manual for free on BRPs website for some basic info.

Normal sequence. Start engine. Turn on water. Never run for more than 2-3 minutes (I personally never exceed 1 minute) as the carbon seal will cook if it is not in the water. Turn water off, turn engine off.
 
Thank you for the help. I cleared the cylinders of any water, injected some Marvel Mystery oil into the cylinders to prevent rusting. I replaced the spark plugs and cranked the motor. It is still ingesting water. Where would this water be coming from and what is the proper method for removing it? I was thinking of removing the intake manifold. What would you do? And yes I know I need to change the oil a few times after all the water has been cleared because it seeped past the piston rings.
 
There is a section in the service manual on water flooded engines. And yes intake manifold and exhaust system including the muffler need to be removed and drained.
 
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Ok I drained everything out, got it running, put it on the lake and did 5 oil changes. Oil looks pretty good now. I did notice a good amount of smoke coming out of the exhaust. I expected some smoke because I put Marvel Mystery Oil in the cylinders to prevent rust. But I ran it for about an hour and 20 minutes total and it's still smoking. Never got it up to full revs because I found out the wear ring is bad in it so I gotta replace that. Do you guys think that this smoke will go away or do you think that amount of time should have cleared it up and I probably have another problem?
 
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