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| prop question https://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=6&t=13583 |
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| Author: | harleyx2 [ Sat Nov 06, 2010 6:23 pm ] |
| Post subject: | prop question |
I have a 20 hp Vanguard Longtail on a 1542 Alumacraft and a new Mudbuddy 9x5 prop. I am turning 3900 RPMS out of water and only 3100 when moving. Is this to big of a prop? Also this brand new prop has a bad vibration my old prop didnt have. I have a new shaft and all new bearings and seals and cant figure out this vibration thing from the new prop. Thanks |
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| Author: | go-devil15 [ Sat Nov 06, 2010 7:07 pm ] |
| Post subject: | Re: prop question |
well it shouldnt be to big of a prop, also you will lose som rpms because when your prop is in the water, it is having a harder time turning because of the water.as for the vibrations, i dont think it could be coming from the prop, but it can be a possibilty, is your shaft centered and everything? |
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| Author: | harleyx2 [ Sun Nov 07, 2010 7:02 am ] |
| Post subject: | Re: prop question |
Brand new shaft and it didnt vibrate with the old prop on the same shaft. |
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| Author: | go-devil15 [ Mon Nov 08, 2010 5:39 pm ] |
| Post subject: | Re: prop question |
if the prop is not balanced correctly ,then it can cause extermely bad vibrations. |
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| Author: | jrp267 [ Tue Nov 09, 2010 7:27 pm ] |
| Post subject: | Re: prop question |
You probably have the u joint bound up at the top. Shaft is probably in or out to far. |
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| Author: | harleyx2 [ Tue Nov 09, 2010 7:41 pm ] |
| Post subject: | Re: prop question |
| Author: | cb5331 [ Tue Nov 09, 2010 7:43 pm ] |
| Post subject: | Re: prop question |
If it did not vibrate with the old prop, then as others have stated, the new prop is probably out of balance... |
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