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Old 10-09-2021, 12:31 AM
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503Kento 503Kento is offline
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Boat: Prostar 190 LTR, 2001
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New Vibrations (not the good kind)

I have a 2001 ProStar 190 that I acquired January of 2021 and it has run smooth as butter. The other day, I clipped a submerged log with the prop. Made a fair amount of noise and saw some chunks of wood in the prop wash. Figured I dinged my propeller as I seemed to notice some increased vibration but the water was a little rough so not really sure. When I got home, I inspected the prop strut, rudder and found no damage. Skied again a couple days later and could not say for sure there if it was vibrating pulling my buddy at 28 MPH, he wanted to try 34 MPH just for kicks which is where I really noticed increased vibration in smooth water.

I figured my shaft was bent but after reading another thread here where the strut was bent but the shaft not, Im not sure of my diagnosis.

So, what would the trouble shooting steps be to determine where the vibration is coming from?

Thanks for your help,

Kent
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Old 10-09-2021, 12:51 AM
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You can have a slightly bent prop blade without actually being able to see physical damage. Props are more likely to give before anything else. If you have a spare prop, I'd throw that on first. Easiest thing to check (if you have a spare around - which, and I know this might be 20/20 hindsight, is a really good idea).

Last edited by Jeffer; 10-09-2021 at 12:52 AM. Reason: typo
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Old 10-09-2021, 02:42 PM
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waterlogged882 waterlogged882 is offline
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Quote:
Originally Posted by Jeffer View Post
You can have a slightly bent prop blade without actually being able to see physical damage. Props are more likely to give before anything else. If you have a spare prop, I'd throw that on first. Easiest thing to check (if you have a spare around - which, and I know this might be 20/20 hindsight, is a really good idea).
^ ^ ^ this

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Old 10-10-2021, 08:53 AM
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503Kento 503Kento is offline
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Thanks guys, I’ll give that a try and report back. I guess I’ve never had a damaged prop that didn’t look damaged.
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Old 10-12-2021, 10:28 AM
curver900 curver900 is offline
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i did the same thing this year.. new prop and strut.. i bet your strut is bent too.. take a pick of it straight on from the back...
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Old 10-12-2021, 09:55 PM
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503Kento 503Kento is offline
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Tried a different prop and the vibration is gone! ��

I’ll take the original the the prop shop and see if they can fix it.

Kent
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Old 10-14-2021, 08:52 PM
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Awesome! Even though that was the easiest thing to try, seems the easiest thing usually isn't THE thing. At least not in my world (but I'm always hopeful).

So glad that was the case for you for sure! Sure saved a lot of time, headache, and money.
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Old 10-14-2021, 09:19 PM
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waterlogged882 waterlogged882 is offline
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Quote:
Originally Posted by Jeffer View Post
Awesome! Even though that was the easiest thing to try, seems the easiest thing usually isn't THE thing. At least not in my world (but I'm always hopeful).

So glad that was the case for you for sure! Sure saved a lot of time, headache, and money.
+1 ^ ^ ^

For those following, this is a good point and case, where an evidently and seemingly unscathed prop can throw a vibration. Takes very little for this scenario to creep in for unsuspecting issues.

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  #9  
Old 10-20-2021, 03:57 PM
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503Kento 503Kento is offline
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Just to polish off the thread, got my original prop back from the shop and did a test outing to confirm the repair. Running smooth just like before, Perfect Pass recalibrated and ready to ski tomorrow!

Thanks again for pointing me in the right direction.

Kent
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  #10  
Old 10-21-2021, 12:35 AM
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Very glad you dodged a bullet there on repair - easiest exit without having to dump out your wallet. BUT, I will say, I'm in Southern California and my boat is in the mountains and I took it out for the last time last week. You are a trooper skiing in the Pac NW now! Enjoy. Be safe, stay warm. Post a pic up here from being on the water!
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