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post #21 of 26 Old 01-14-2016
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Re: Folding Prop: How do I remove?

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Originally Posted by WoobaGooba View Post
Hey JC

Got any pics? Struggling with this exact situation. Shaft is out of the boat.
Didn't take any pics. I think my post describes things pretty well. Feel free to ask any questions you have. A proper puller will really help.
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post #22 of 26 Old 01-15-2016
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Re: Folding Prop: How do I remove?

Martec-
1. Remove the 2 cotter pins. Order new Monel ones from Martec.
2. Use 1/2" extension and ratchet to unscrew locking barrel nut.
3. Use block of wood and tap with hammer to remove barrel from prop shaft. A puller will work also if you have one. Soak prop with Blaster or Kroil if you are having trouble. Mine came off easily after removing nut which was really the hard part.

Trick for making sure Martec is closed. With boat out of the water hand rotate prop so that is stays in locked position. Mark prop shaft in boat, also rotate 180 degrees and mark that spot too.

In my experience the Martec will close to the right position if you turn off the engine then placing it immediately in gear at boat speeds of 5knots or more.
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post #23 of 26 Old 01-15-2016 Thread Starter
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Re: Folding Prop: How do I remove?

Here is a picture from when I did this five years ago. I had to combine two gear pullers to make it long enough. Look closely and you'll see that I used bailing wire to snug it to the prop. I ended up keeping the Martec and she still works great to this day. I also still have the pullers, collecting dust in my storage!
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post #24 of 26 Old 01-15-2016
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Re: Folding Prop: How do I remove?

Quote:
Originally Posted by Sanduskysailor View Post
Martec-
1. Remove the 2 cotter pins. Order new Monel ones from Martec.
2. Use 1/2" extension and ratchet to unscrew locking barrel nut.
3. Use block of wood and tap with hammer to remove barrel from prop shaft. A puller will work also if you have one. Soak prop with Blaster or Kroil if you are having trouble. Mine came off easily after removing nut which was really the hard part.

Trick for making sure Martec is closed. With boat out of the water hand rotate prop so that is stays in locked position. Mark prop shaft in boat, also rotate 180 degrees and mark that spot too.
BTW- all of the above is also quite easily done underwater by a properly equipped diver. FYI.
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post #25 of 26 Old 08-28-2018
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Re: Folding Prop: How do I remove?

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Originally Posted by rbrasi View Post
Got it!
I used a 1/2" socket wrench extender to unscrew the nut, and I had to take it out completely to put the bearing puller in there against the aft end of the shaft. It took some doing, but, it worked. The prop did not shoot off or anything. The hardest part was getting the cotter pins out and making the puller grab on. We had to grind the ends to sharpen them. BTW- Harbor Freight sells them for $18.
Thanks, as always to the vast knowledge data base that is SailNet!!!!!

PS- Does anyone want a Martec Folding Prop? I'm going to try a trade in for a fixed.
Not sure how recent your post is but I have a fixed prop off an Atomic 4 /Universal diesel engine with 3/4 shaft....I need a Martec 13 DX elliptical shaped prop..what is your Martec you are trying to replace?
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post #26 of 26 Old 08-28-2018 Thread Starter
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Re: Folding Prop: How do I remove?

Post #23 details how I ended up sticking with the Martec. I sold the fixed one and took a bath on that.

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