cavitation issue?

[Slowx2]

This past weekend my ski slowly started having a cavitation. I just rebuilt the motor this winter with a stroker crank and everything in the pump was new last summer. I havent had to deal with this before and was curious what things I should be looking at that cause this? I checked the impeller and it still looks new and nothing was stuck in the pump. I know it could be caused by a bad pump seal but not sure what else to look at when I start to dig into the ski.
Thanks

 

[bored&stroked]

Too much stroker power for the prop to handle? That's what I'd tell people.

 

[Slowx2]

Too much stroker power for the prop to handle? That's what I'd tell people.

I was thinking that too but it didnt start doing this until the third or fourth tank of gas.

 

[Slowx2]

So I went to go replace my pump seal, hoping that was the issue and found out that 3 of the 4 pump bolts had come out. They came out because the threaded inserts in the pump had come out. Anyone ever heard of this happening and have a suggestion for fixing it?

 

[Harbor]

That's odd... Can you post a pick, I'd like to see these inserts ? Thanks

 

[Slowx2]

That's odd... Can you post a pick, I'd like to see these inserts ? Thanks

Threaded inserts might have been the wrong term but threads where coming out and I was able to pull them right out. I'll try and get a picture later tonight.

 

[Slowx2]

Looks like it was previously heli coiled.

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[BruceSki]

Someone used a couch wear ring and added helicoils to it to make it work on a superjet.


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[Slowx2]

Someone used a couch wear ring and added helicoils to it to make it work on a superjet.


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Weird thing is I thought I bought it new but I could be wrong.