Vibration

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   I hit something submerged. Did not seem to be a very hard hit. After I noticed vibration. How do I narrow down what is causing the vibration? I noticed nothing wrong with shaft, prop, or brace. 

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Stev Members Profile Send Private Message Find Members Posts Add to Buddy List Guest	Post Options Post Reply Quote Stev Thanks(0) Quote Reply Topic: Vibration Posted: August-15-2005 at 4:34am
	I hit something submerged. Did not seem to be a very hard hit. After I noticed vibration. How do I narrow down what is causing the vibration? I noticed nothing wrong with shaft, prop, or brace.

skyhawkflyer Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: February-08-2005 Location: Zimbabwe Status: Offline Points: 275	Post Options Post Reply Quote skyhawkflyer Report Post Thanks(0) Quote Reply Posted: August-15-2005 at 11:06am
	Talking from experience, you may not be able to see anything wrong. I had a similar situation with my 87 S/N. I taped a pencil to a block of wood and secured it to my trailer cradle, using the pointed end of the pencil as a reference for my prop shaft(the end with the nut on it). As I rotated the prop I could see the very end of the shaft wobbling. The shaft has a tapered end so it's easy to bend the trailing end of it. The wobbling shaft set up a vibration that made my entire dash buzz. Good luck!

jameski Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: May-18-2004 Location: United States Status: Offline Points: 368	Post Options Post Reply Quote jameski Report Post Thanks(0) Quote Reply Posted: August-15-2005 at 11:39am
	If you hit something soft, but dense (like a rotten log) then you might not see a "ding" on your prop, but you might have a bent blade. You can use skyhawkflyer's procedure to check your blades too. Also, check your engine alignment.
	current boat 94 Sport Nautique previous boat 78 Martinique

Stev Members Profile Send Private Message Find Members Posts Add to Buddy List Guest	Post Options Post Reply Quote Stev Thanks(0) Quote Reply Posted: August-15-2005 at 3:35pm
	How do you check engine alignment?

jameski Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: May-18-2004 Location: United States Status: Offline Points: 368	Post Options Post Reply Quote jameski Report Post Thanks(0) Quote Reply Posted: August-15-2005 at 4:10pm
	Look in the "Reference" section of this site under "Engine/Transmission Manuals". The first manual is the "PCM 302 and 351 Engine Manual" Look on page number 2 - it has the engine alignment procedure.
	current boat 94 Sport Nautique previous boat 78 Martinique

Vibration

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