How to Straighten a Bronze Propeller
While you can straighten a bronze propeller to make the boat run correctly again, chances are that you won't be able to get it quite right. This is because many propellers are made to precision tolerances. If you have to straighten your bronze propeller on the water, you can usually fix it well enough to get back to the boat launch. You'll need the right tools aboard and some techniques to remember.
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Instructions
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Navigate the boat to the nearest shoreline if the boat is able to move on its own power. If not, use your emergency oars or paddles.
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Lift the engine out of the water, and then anchor or tie up the boat so that the transom is as near to shore as possible. This will give you at least some comfort while you work.
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Position the wooden block on the bottom side of the bronze propeller. You'll have to determine for yourself the best way to strike the propeller with the hammer to straighten it. The purpose of the wood is to help prevent the hammer from breaking the bent propeller blade.
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Strike the bent prop blade with gentle taps of the hammer until it has been returned to its position. If you strike it too hard, the bronze will break, so use care at this point. Inspect the shaft. If the shaft appears severely bent by impact, you may damage the engine by trying to run back to the launch. Seek a tow.
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Tips & Warnings
Bending of the bronze propeller has the same effect as continuously bending a paper clip. Eventually, the metal will weaken and the clip will break. For this reason, replace the propeller before you venture out in the boat again. Further bending the propeller blades could break them off, leaving you stranded.
Always carry a spare prop and emergency tools.
References
- Photo Credit Ablestock.com/AbleStock.com/Getty Images
