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Step 1: Block the prop, so it doesn't spin as you apply pressure to the prop nut. Step 2: Straighten and remove the cotter pin, using a pair of pliers. (Some props will have a circular tab, instead of a cotter pin). Step 3: Remove the prop nut with a ratchet, or a prop-puller (a wrench designed just for prop nuts).
In respect to this, when should I replace my boat prop?
8 Clear Signs It's Time to Replace Your Boat Propeller
- It Has Too Much Pitch. When researching propeller sizes, you'll notice two numbers associated with each one.
- It Doesn't Have Enough Pitch.
- It's a Compromise Propeller.
- You Damaged It in the Water.
- It's Made of Aluminum.
- You Want to Go Faster.
- You're Losing Gas.
- It's Not the Right Diameter.
Similarly, it is asked, how tight should a boat prop be?
When you go to tighten the boat prop nut, you want to make it tight, but not crazy tight. A general rule of thumb is to tighten it by hand and add a 1/4 turn extra. You can find exactly how much torque to use by looking in your service manual for the engine you are tightening the prop nut on.
1 1/16" or 1 1/8", can't remember off hand as my rapid jack plate takes one and the prop takes the other. Take 'em both and you are covered. 1 1/16". You'll need a deep socket.