Thanks for the detailed description here!! I'm planning on building a jet boat but don't know much about these jet drives, thanks for the thorough description of the rebuild process.
Hey thanks for the detailed description. Lots of detailed work to get it right. Just had to rebuild mine but other than the inducer I just went with a stock set up. Its a 20 foot sled and have been happy with performance. Im really not sure you are in any more danger with the tighter tolerance set up. Years ago my friend had our joint boat out and it ended up locked up tight. I pulled it apart and the bowl was full of rocks. About a half a coffee can full. One small rock had got between the impeller and wear ring, hauled up some aluminum from the impeller and locked it up tight. He never would tell me what happened! So in my mind, it may not matter that much how tight the tolerance is, get the wrong or "right". sized piece in there and your in trouble. I just take very good care of where my intake is! Really curious to see how it runs with all your improvements! Remember, there's no substitute for cubic inches!!!
Bryan, for sure. I certainly opened Pandora’s box once I had this pump apart. But that’s just how it goes sometimes. We share similar trains of thought on the rocks and tolerances. I am not terribly worried about it. A little caution and common sense on where your running the boat will go a long ways. Sounds like you buddy needed a minor recalibration after borrowing your boat. 😉 ~ Nick
@@AutoTechNick He got it! Long story but he at least he didnt leave me overnight to freeze! Do you have any performance data prior to all the work you've done?
Putting a chamfer or radius onto the shoulder even though the other items don't have it would have been OK. You are removing material not adding any. Meaning to say that the impeller is not going to sit any deeper or shallower because of chamfer on the impeller. And the same can be said about the shaft shoulder the impeller would not sit deeper or shallower because of the shoulder because material was removed from the impeller not added. Both items are spaced off their flat faces so by removing anything from the shoulder of either doesn't change that. By adding the under cut just made the shaft weaker from a reduced diameter.
Thanks for the detailed description here!! I'm planning on building a jet boat but don't know much about these jet drives, thanks for the thorough description of the rebuild process.
Previous owner was on the right track with that one 😂😂
Awesome video. I used it multiple times to set up my pump. Thanks again, keep the good videos rollin!
Thanks, will do!
~ Nick
Good video! Thanks for taking the time to make/explain it.
Hey thanks for the detailed description. Lots of detailed work to get it right. Just had to rebuild mine but other than the inducer I just went with a stock set up. Its a 20 foot sled and have been happy with performance. Im really not sure you are in any more danger with the tighter tolerance set up. Years ago my friend had our joint boat out and it ended up locked up tight. I pulled it apart and the bowl was full of rocks. About a half a coffee can full. One small rock had got between the impeller and wear ring, hauled up some aluminum from the impeller and locked it up tight. He never would tell me what happened! So in my mind, it may not matter that much how tight the tolerance is, get the wrong or "right". sized piece in there and your in trouble. I just take very good care of where my intake is! Really curious to see how it runs with all your improvements! Remember, there's no substitute for cubic inches!!!
Bryan, for sure. I certainly opened Pandora’s box once I had this pump apart. But that’s just how it goes sometimes.
We share similar trains of thought on the rocks and tolerances. I am not terribly worried about it. A little caution and common sense on where your running the boat will go a long ways.
Sounds like you buddy needed a minor recalibration after borrowing your boat. 😉
~ Nick
@@AutoTechNick He got it! Long story but he at least he didnt leave me overnight to freeze! Do you have any performance data prior to all the work you've done?
Unfortunately I don't have any good data from before...
Great video!
Putting a chamfer or radius onto the shoulder even though the other items don't have it would have been OK. You are removing material not adding any. Meaning to say that the impeller is not going to sit any deeper or shallower because of chamfer on the impeller. And the same can be said about the shaft shoulder the impeller would not sit deeper or shallower because of the shoulder because material was removed from the impeller not added. Both items are spaced off their flat faces so by removing anything from the shoulder of either doesn't change that. By adding the under cut just made the shaft weaker from a reduced diameter.
Basically your drawing shows a lip not a chamfer, take that lip and invert it 180 degrees and that shows a chamfer.
Too many commercials