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Discussion Starter · #1 ·
Yes, I used an orbital grinder and went at our ugly looking prop. Now the prop looks shiny with a few small copper circles, where the zinc must have come off.

I did one blade at a time, and I got better at doing it as I went, so by the 3rd blade I was able to get to the shiny brass while taking much less of the metal. Part of it was learning how deep the copper circles went and being less aggressive on later blades and not go ing after them as much.

I'm thinking, yikes! Did I just put my prop out of balance? And if so, do I have to send it somewhere to get balanced, or does it not matter?
 

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Discussion Starter · #8 · (Edited)
Correction, I used a sander (an orbital sander) on the prop, not a grinder. I was amazed at how easily it took off the metal.

It's a 3-bladed, fixed prop.
 

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Discussion Starter · #12 ·
How much work is it to remove the prop? If you can take it off you can quite easily see if it is seriously unbalanced - stick it on a metal or even a wooden pole and spin it a couple of times, marking the bottom blade to find the heaviest point. If you get the same point 10 times out of 10 and if you then put that blade at 90 degrees and it rotates back down to the bottom then you have a serious imbalance.
Nice method. Could it be this easy? I know there's dynamic and static balancing. Without going there (because I really can't), that's a good method. Now to find a big enough wrench....
 

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Discussion Starter · #13 ·
Funny conversation just now on the phone with my next door neighbors. She answered the phone and was calling out to her husband that I had a 2 inch nut and needed to borrow a big wrench. Great people, funny game of telephone.
 
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