After a broken prop and a tangled prop, I decided I need a prop guard. But what kind?

briangcc

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Jul 10, 2012
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Way too quick for conditions. Way too shallow. Is the cavitation plate covered in mud? If so, you're pulling that into the engine for cooling and may very well clog those passages, causing it to overheat.

I'd go further to say....learn to read what the water is telling you. Granted, I'm not in your part of the world BUT anywhere around an island here is bound to have a shallow shoal or three. Approach with the appropriate respect and you may not find yourself replacing so many props.
 

chuser

Seaman Apprentice
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May 30, 2019
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I tried to edit my post to change, but it got double posted - now I can't see how to remove the duplicate. Oh well.

I was trying to say that I wasn't even going fast - almost at idle just pushing the boat through the water. I wasn't going full blast or even cruise speed. But then crunkle-crunk and the engine jumps.

Usually if there's shoals there are ripples or some such. This was in the wetlands area, there are probably a hundred islands, most of them bulkheaded. This one was bulkheaded. :(

Also can't rule out substandard materials on the prop. Wouldn't be surprised. It's aluminum? Maybe I should start ordering my own prop and installing it. It's just a cotter pin, right?
 

JimS123

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I would have to say that in the USA, the number of "boats" has increased by at least 50% in recent years. Everyone wants to be out in the water, and many want to go to remote places just like you describe. However, in our case, all the little water bugs are hand driven kayaks, and the people represent all facets of life, old and young.

In some cases the Kayakers just want to be nimble and free, while others don't have the money for a powered "boat".

I guess I would ask "how far do you want to travel?" Since your calamities are at low speed, maybe you don't need a motor at all.

When at anchor in our favorite cove, with the engine up, a fish pole in the water, and the beer cooler being accessed, the nicest people that ply the waters around us are Kayakers. Just sayin.
 

chuser

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Just got the third prop installed today. It's much smaller than the others. 7.5 inches as opposed to 10.5 inches. I was about to complain...but there was a silver lining. The new prop boosts the top speed (with just me and a full tank of gas in back) up to 20 knots! That's two more than the previous top speed. And if I didn't break the prop I'd still be stuck at 18 knots. See? All you naysayers...:abnormal:
 

jetboater

Petty Officer 2nd Class
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Jan 13, 2004
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122
Take a look at these and see if either would meet your needs....they’re both designed to protect the prop on small outboards.

do a search for—

mac’s prop saver river runner

and

rock hopper motor guards
 

chuser

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May 30, 2019
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Actually - I did order a river runner. We'll see if they ship it. And if they ship it, we'll see if it arrives here. Should be a couple of weeks.
 

Sea Rider

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If you're still breaking props with the new skeg guard protector installed, throw away current motor and install a portable swamp motor, the ones with huge fan blades, will work much better for your boating purposes..LOL!!

Happy Boating
 

QBhoy

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I’m beginning to think this is a late April fools...C’mon now. This can’t be real ?
 

chuser

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What, should I take a photo of my boat in front of a pagoda or something? :cold:

Yeah, I thought about an air boat or a jet drive lower unit...but both are either unavailable or way out of budget range or both. :lol:

I just realized that Mac's, along with the rest of America, is shut down right now so God knows when or if my skeg guard will arrive. Taking a couple of friends on the boat Monday into the inner city canals, let's see how long this prop lasts.
 

QBhoy

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What, should I take a photo of my boat in front of a pagoda or something? :cold:

Yeah, I thought about an air boat or a jet drive lower unit...but both are either unavailable or way out of budget range or both. :lol:

I just realized that Mac's, along with the rest of America, is shut down right now so God knows when or if my skeg guard will arrive. Taking a couple of friends on the boat Monday into the inner city canals, let's see how long this prop lasts.

Haha. I honestly think you’re kidding us all on. Good to see a little humour in times like this I suppose.
If you are being serious...there isn’t a skeg gaurd in the world that’s going to sort your predicament out ! Time to sell the outboard and get a good set of oars and rowlocks 👌
 

JimS123

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I have traveled in parts of the world and seen what looked like beautiful pristine waters, only to go up close and be thrown back by the odor and degree of pollution. What is the sanitary condition of these shallow canals in China?
 

Sea Rider

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Taking a couple of friends on the boat Monday into the inner city canals, let's see how long this prop lasts.

If breaking props one after the other, power the boat with the motor set to the Unlocked position, the lower leg will rise freely if hitting something compared to running motor at the usual Locked position. Don't forget to take along your snorkel gear to determine underwater what's breaking your props constantly LOL!!

Happy Boating
 

chuser

Seaman Apprentice
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May 30, 2019
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What, and be a quitter? Nah. Not gonna happen. :der: I'll buy stock in a prop company and get them wholesale. I thought about getting a rowboat when I started this rigamarole, but ultimately decided against it. It would have been a lot cheaper. Problem is, it takes forever to travel between points. A 20 minute run with the engine would be two hours with oars. Plus, how do you do donuts with a rowboat? :eyebrows:

The canal water is...canal water. Would you drink water from the canals near you? Yeah, so probably not here either. There are Asian silver carp that live in the waters and are fished by the locals. Here, they're a native species and not invasive (a shocker, I know). I wouldn't eat them, though. It's not like the water is filthy and stinks. There are constantly patrolling trash boats with one man driving and another standing in the front with a net to pull floating debris out, so it doesn't get that bad. Some waters can be stagnant, although the local government is pretty good about putting bubblers and sprinklers everywhere that happens so that the water doesn't get deoxygenated. People do throw junk in the rivers, though. Out of sight, out of mind.

I do have the motor unlocked, thanks for the advice. ;) It kicks up when it hits something. It also tries to come out of the water when I go in reverse. Oh well!

Took the boat out Monday. Ran into new and exciting obstructions!

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A canal lock. Fortunately it was open. Just as fortunately, I have a flat-bottomed boat with a low profile, so it fits through this narrow spot. Handy!

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Caissons blocking off the river due to construction being done further down. Had to turn around for this one.

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This bridge under construction, which had an extremely low iron bar across the water. It was a tight squeeze, even for my boat. We had to do the limbo and bend way down to get under it. But we got through!

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Beyond the low bridge was some kind of duckweed restricting access to a very narrow channel. Once again without a jonboat we would be turning back.

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Aaaaand just for good measure, a picture of a pagoda. The ensign in the corner is that of the Beiyang Fleet, a personal favorite of mine. An American, Philo McGiffin, captained the battleship Chen Yuen and is a historical character in China. But that's a naval story, not a boating story, so you can find it yourself if you like.

So I would have missed out on all that without going in to unknown waters! My buddies in the boat club all have big power boats and pontoon boats. But they can't fit into the tight spots I can and thus they miss out on all the fun. All they do is cruise back and forth around the big main waterways. Borr-ring! When I told them about my adventures in shallow water, they just laughed and said I should buy a jet ski. :crushed: But those only hold a single passenger and are three times the price of my little jonboat. I had three people out and we all had a blast. It's the beginning of a beautiful summer. :congratulatory:
 

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JimS123

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A barrage is a blockage intended to increase the water level, like a dam. We would call your obstruction a Boom.

Looks like interesting waters, just like some of the places I would go. However, my small outboard has a "shallow water drive". If I tip up the motor and engage it, the prop is just below the surface, and above the bottom if its a V-hull. It limits your speed to only a few miles an hour, so I only use it when I don't know what's ahead, but suspect something bad.
 

roffey

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very nice pictures …. I think your are a little tongue in cheek with this post but a little humour these days is appreciated, we need some
 

Old Ironmaker

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Your best prop gaurd is your brain and your sonar set to alarm at 2 feet. If you insist on going into uncharted waters because that's where the fun is well then buy a few extra props and have fun.

We used to have a hunt and fish camp on The Ottawa River in eastern Ontario. We ran the rapids to get to and from our fishing spots. In all the years we ran the fast water I never even dinged a prop. Set the 9.9 on tilt and ran so slow that we had to watch the shoreline to see if we were actually moving forward. The skegs took some dings but only 1 of us lost a prop because he was a rookie then and going too fast. For entertainment we would sit on the dock and bet which 200 plus HP Bass boat would loose a prop. One of the kids from the next camp to us earned all his school money by towing in boats with broken props at 25 bucks a tow. Then he would charge them more to drive them to get their trailers. I bet he is doing well today.
 
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