Help with S Blade weights

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dirtracer4
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Help with S Blade weights

Post by dirtracer4 »

I have a vibration so I weighed my super wides on a paint mixing scale and this is what they weighed in grams.
3556.4
3478.2
3469.7
I understand this is static weight, but how concerned should I be? I plan on sending them in for balancing when I return from a trip next week. Can the static be off this much and the dynamic balance be close? I hope I'm relaying this right. Motor and reduction are smooth without blades attached.
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nomad41
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Re: Help with S Blade weights

Post by nomad41 »

I would call Sensenich in the morning. Ask for Steve, Darin or Don and ask them. They would know better then anybody.
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Prototype
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Re: Help with S Blade weights

Post by Prototype »

Yea it's time to send them in. I have a bit of vibration on mine and almost none with the clutch engaged, but Sensenich can fix you up. Are those numbers from a matched set of new s blades?

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dirtracer4
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Re: Help with S Blade weights

Post by dirtracer4 »

I will be calling tomorrow and although not new I would think it is a matched set, all three have the same tip weight numbers marked on the tag.
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swamper2
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Re: Help with S Blade weights

Post by swamper2 »

Image[img][/http://www.southernairboat.com/photopos ... 041.jpgimg]
I had a vibe I couldn't stand so I did not want to send the new r blades back to fl so I made my own moment balancer
smooth runner now
16ft alumitech/406sbc/2.38w/3-80in.R's

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dirtracer4
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Re: Help with S Blade weights

Post by dirtracer4 »

I don't even know what to say....I shouldn't envy, but I do. My dad was a machinist not me.
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dirtracer4
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Re: Help with S Blade weights

Post by dirtracer4 »

Where do you add or remove weight?
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swamper2
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Re: Help with S Blade weights

Post by swamper2 »

dirtracer4 wrote:Where do you add or remove weight?
what the process was , find the lightest blade balance and then bring the other ones in to the same setting by grinding off of the tip. In my case I had 2 that were close and one dropped modestly hard.
Believe me I was very apprehensive about grinding my blade ,but it was heavy.
I never brought it up to the other 2 because I was getting worried that my process was not right so I stopped when it just started to lighten up. It improved considerably. The next time I have the blades off I will revisit the balance.
16ft alumitech/406sbc/2.38w/3-80in.R's

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dirtracer4
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Re: Help with S Blade weights

Post by dirtracer4 »

In my case 90g (36 pennies) is a lot of weight to remove. I didn't get a chance to call Sensenich today, but I thought they balanced by adding epoxy or something to the inside of the blade.
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ptr34
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Re: Help with S Blade weights

Post by ptr34 »

That tip weight is the moment. Not total weight. I would send them in. May need to add in blade and shank. And grinding on end changes the lengths of blades and can hurt balance.best thing to have sensenich redo them
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swamper2
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Re: Help with S Blade weights

Post by swamper2 »

I also would send them in. I didn't remove that much but tip weight and total weight are different.
16ft alumitech/406sbc/2.38w/3-80in.R's

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