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Old 04-26-2007, 08:30 AM
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Default Pulley System for Dock???

This weekend I am supposed to put my boat in the water for the season. I am docking it at a new marina for me (Raritan Bay Marina) At my old marina we tied big fat lines (usually 1/2 inch or 5/8 inch) to all of the rings on the polls.

I was told at the new place they don't do this. Instaled they used pulleys. I was told to buy two of the following
- 50 feet of black/orange 3/8 inch rope (form home depot)
- plastic pulley
- S hooks
- Eye hooks
- Brick

Does anyone know how to set this up? Are they any places on the internet where I can find some sort of description and/or diagram?

Thanks,

Peter
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Old 04-26-2007, 08:37 AM
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Default Re: Pulley System for Dock???

Sounds cockamamie to me, but what do I know. I tend to like 3 strand cordage, bowlines, eye splices, thimbles, chafing gear and cleats. And big fenders.
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Old 04-26-2007, 08:53 AM
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Default RE: Pulley System for Dock???

I've seen setups like you described but never for vessels over about 25 feet.

2 lines for the bow, 2 for the stern.

The line is attached to the cleat on the boat. It runs out and thru the pulley and down to the water. Weights (bricks?)are attached to the line and this keeps constant tension on the line for the rise and fall of the tide.

The system should also keep the boat centered in the slip. This is not always the case on windy days.



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Old 04-26-2007, 08:58 AM
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Default Re: Pulley System for Dock???

Not as crazy as one may think. I've tied up many a boat up here in jersey that way. Guess your new marina doesn't have floating docks. First off don't use plastic pulley, I don't trust them, get a heavier metal pulley from home depot. Screw a big eye screw as high up on the piling you can, and put the pulley on it, what I like to do is run a line through the pulley with a loop on the outside of the pulley, this way the line will stop at the loop, tie the other end to a cider block, Tie your bow line to the loop and cleat it to your bow, drop the cider block into the water. Do the same on the other side. The weight of the blocks will keep the transom away from the dock as the tide goes up and down, so a springer line is not really needed. At the marina I'm at now we use tires around the piling, that slide up and down the piling. Some marinas don't like that, they think the tires will pull the piling up, if the tire should get hung up.
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Old 04-26-2007, 09:04 AM
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Default RE: Pulley System for Dock???


Peter, I have used a pulley system many times for docking boats, and my kids 15' Whaler is currently berthed this way. A pulley system is great for protected areas, but not the best system if the boat will be subject to high winds or strong current.
You will need to visit a local NJ Shore hardware store, or marine supply store for:

-4 large galvanized pulleys with swivel eyes on the end, and pulley wheels capable of holding 1/2" dia. rope
-4 threaded J hooks at least 1/2" dia. to drive into each piling for holding the pulleys. The hooks are threaded on one end to drive into the piling, (assuming they are wood), and open ended on the other to slip the pulley eye onto. Drive the J hooks into the piling, usually near the top to allow for flood tide. Best bet is to take a look at the other boats in your marina for the height required.
-4 heavy sash weights. This is a the tricky part. The weights need to be heavy enough to hold the boat steady in a storm, but not so heavy that it pulls your cleats out Some buy actual sash weights from a marine supply. I've also seen home-made one from large Sam's Club pretzel plastic tubs filled with cement, and a galvanized eye hook imbedded in the cement.
-4 lengths of 3 strand dock line, 1/2" dia. with a spliced end. You will need to allow enough line for the boat and sash weights to go up and down with the tide. However, be careful not to make the ropes too long and have them resting on the bottom in a high tide. Tie the unspliced end to the weights, the spliced end to the cleats on the boat.
-you may need to buy an additional line for a spring line.

I would highly recommend you go to the dock first to see what you are dealing with, and also look at how others have tied up. Once you get the lines set, you should remain in the area and watch the boat fun through a full high/low tide cycle, adjusting the lines as necessary. Again, this is not the ideal set up for rough water areas. Good luck.
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Old 04-26-2007, 09:11 AM
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Default Re: Pulley System for Dock???

Like Cobraarvey said, depending on the size of your boat, you can make your own weight, anything from a coffee can to a 5 gallon bucket. Get a long eye bolt and some big washers, fill the container with cement, put in the eye bolt and let is set up. Weight is good to go.
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Old 04-26-2007, 09:43 AM
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Default RE: Pulley System for Dock???

Thanks for the great responses.

One of the reasons why I moved to the marina is that it seems to be very well prtected from the elements. The guy who runs the marina is the one who told me that they use the pulley system.

I was just trying to piece it together before I drive down again.

Thanks

Peter
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Old 04-26-2007, 10:53 AM
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Default Re: Pulley System for Dock???

You will be fine docking that way. It is a common thing in NJ. Just use the homemade cement weights as mentioned above and you will be fine. Also don't skimp with the plastic rollers get all heavy duty gear.
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Old 04-26-2007, 11:07 AM
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Default Re: Pulley System for Dock???

Do what Cobra says.... Not what your bud said (he had to be kidding), use sash weights not concrete. Works better and one is just the right weight for most small boats that would use that method.
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Old 04-26-2007, 03:13 PM
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Default Re: Pulley System for Dock???

The boat in question is an old 23' SeaCraft with twin engines and a flotation bracket. It weighs about 5,000 fully loaded.



Will one sash weight cut it?
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Old 04-26-2007, 08:22 PM
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Default Re: Pulley System for Dock???

Peb 3
I am also in Raritan Bay Marina. I put my boat in on Sun. (24 Rampage) slip 21. I set the boat up with a pulley on each pole. there should already be a screw eye in the poles. There are cinder blocks at the marina you could use for weight. I ran the lines through the pulley tied to cinder block and dropped it in the water. then tied the other end to the rear pole on the bulkhead. at this point I tied a loop in the line just ahead of the stern cleats,the looped a 8' 3/8 dock line through the loop and cleated them off. done. the pilings being amidship keeps the boat from swinging, and the lines keep you from banging into the bulkhead or go forward. Just pull the lines tight when your cleating them off. If you have outboards your going to want to nose in though,so you'll be using the bow and/or mid cleats. Not a bad setup, makes it simple to tie up. see ya down there.

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Old 04-29-2007, 03:54 PM
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Default Re: Pulley System for Dock???

Arthur,

Great meeting you down there today. Let's plan on going bassing soon.

FYI, my email address is peter_boyle@hotmail.com.

Peter
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