2025 SD Jet Pump Disassembly Questions

[Julian]

So when I removed the pump a second time to apply sealant, I noticed scoring or poor machining on the transom plate. I initially thought it was from the impeller, but this is upstream from that. I assume this is “normal”?

Never noticed that before, but not sure that I would have...

 

[anmut]

My pump has light scoring, nothing that big though. I'd reassemble and test to see if you have any cavitation or speed issues.

 

[Madman]

My pump has light scoring, nothing that big though. I'd reassemble and test to see if you have any cavitation or speed issues.

I think it was machined (not very well) because the impellers are actually rearward of the marks. I bought an inspection scope and will stick it down through the clean out port the next time I go out.

 

[FSH 210 Sport]

It kinda looks to me like the stick / branch spun around in that area while it was attached to the impeller..

Go enjoy your boat!