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Old 07-02-2016, 17:42   #1
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Anchor chain inspection

Pulled the anchor chain and rode out of the locker on a boat we purchased recently. This boat has sat for about 18 months so there are some spots that look worse that others. How much rust is too much?
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Old 07-02-2016, 17:55   #2
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Re: Anchor chain inspection

Well it's hard to tell with that picture what the whole chain is like, but I would cut off that link and redo the splice at a minimum. Rust like that can quickly abrade the rope splice.
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Old 07-02-2016, 18:21   #3
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Re: Anchor chain inspection

This is too much in my book - it will make the locker a mess. Chop off, re-splice. Done. 5 minutes job.

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Old 07-02-2016, 20:45   #4
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Re: Anchor chain inspection

Agreed, consider this one done. I seem to be challenged in I am not able to post more than one pic. I have about 10 links within 200' feet of chain that look like the attached picture. I think they will be fine but wouldn't mind everyone weighing in.

On another note, does anyone coat the chain with anything like WD40 or similar. I was also thinking of placing a grating for the chain to lay on and maybe get some air circulation.
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Old 07-02-2016, 21:20   #5
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Re: Anchor chain inspection

If you take the chain to a galvanizing shop, they will clean up the chain before dipping it, and you will be amazed at how little actual metal loss has occurred. IMO, those links are quite salvageable...

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Old 07-02-2016, 21:26   #6
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Re: Anchor chain inspection

You can fresh water rinse. If you pull it all out, you may find the other end like new. End-for-end it. As the others have noted, get rid of the rusty link if its the only one. I would also use a galvanized rope thimble.


If you have a windlass, be aware that the wildcat and chain are mates. Replace a chain in kind or replace the wildcat as well.


Chains can be blasted clean and re-plated. Ours, 320 feet of G4 cost $75 to sand blast and abut $150 to plate. We used AGCO to apply armor galvanize.
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Re-plating is usually not cost effective for light chain but the economics get better on heavy chain. Pricing varies locally a lot.
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Old 07-02-2016, 21:44   #7
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Re: Anchor chain inspection

The rope to chain splice must be done carefully as the strain on all the strands need to be distributef equally. I had one fail in a hurricane and barely got another anchor set before hitting the shore. I changed to a galvanized thimble which required enlarging the hawse pipe but the peace of mind wasworth it
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Old 13-02-2016, 21:19   #8
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Re: Anchor chain inspection

Thanks for all the replies. I cut through a link and found the link to be in great shape and the rust was mostly superficial. I did cut the splice apart and will be redoing that with a proper anchor to chain splice. Rinsing with fresh water seems to be the solution most commonly given. I have about 200' of 3/8" chain and 400' of 3/4" nylon rode. That should hold me in Puget Sound until we head south. PO was using the windlass to hold the boat at anchor. I am putting a chain gripper plate together with a bridal of 3/4" nylon secured to the bow cleats so I can take the pressure off my windlass. Thanks again for all the replies.


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Old 14-02-2016, 06:33   #9
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Re: Anchor chain inspection

I agree that a galvanizing company will remove all the rust you will be surprised how good the links look after that rust comes off. Not much material is lost.

However, after you remove a couple of the chain links you feel most concerned with, contact a local manufacturer or company that routinely has its products hot dipped galvanized. See if you can add to their galvanizing order. Most galvanizing companies have a minimum weight (large amount) requirement for reduced pricing. By adding additional weight, both you and the local manufacturer can benefit and save money. Consider adding your anchor to be galvanized if it needs it.

I offer that service for folks who can get their anchor and/or chain to me and combine with my regular galvanizing orders.
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Old 14-02-2016, 07:19   #10
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Re: Anchor chain inspection

Quote:
Originally Posted by Jim Cate View Post
If you take the chain to a galvanizing shop, they will clean up the chain before dipping it, and you will be amazed at how little actual metal loss has occurred. IMO, those links are quite salvageable...

Jim
Good advice from Jim.

It's a good time to get that chain regalvanized (could have been done earlier to better effect). It's very cheap for what you get back.

I agree with Steve above too - get the anchor(s) regalvanized as well.
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Old 14-02-2016, 09:11   #11
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Re: Anchor chain inspection

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Originally Posted by Steve Bedford View Post
I agree that a galvanizing company will remove all the rust you will be surprised how good the links look after that rust comes off. Not much material is lost.

However, after you remove a couple of the chain links you feel most concerned with, contact a local manufacturer or company that routinely has its products hot dipped galvanized. See if you can add to their galvanizing order. Most galvanizing companies have a minimum weight (large amount) requirement for reduced pricing. By adding additional weight, both you and the local manufacturer can benefit and save money. Consider adding your anchor to be galvanized if it needs it.

I offer that service for folks who can get their anchor and/or chain to me and combine with my regular galvanizing orders.

Steve that is a great offer. I've been searching for a while to get my chain regalvanized but all the prices I've found so far are close to what new chain would cost. Can you give me a ball park figure for 250ft of 3/8" chain?
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Old 14-02-2016, 11:06   #12
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Re: Anchor chain inspection

That is a good idea. I will search the Seattle area and let everyone know what I find.


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Old 14-02-2016, 21:57   #13
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Anchor chain inspection

Update - I cut a section out of the offending link. Surface rust only. Had not even begun to penetrate the link itself. I did cut the rope section off and have begun practicing my splicing techniques. First one was not so bad but I need to get it much tighter if I expect it to transfer thought the windless. Any tips on how I can improve? This is 3/4 Nylon 3 strand. Click image for larger version

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Old 14-02-2016, 22:17   #14
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Re: Anchor chain inspection

Reduce the diameter of the strands after you've made your first several tucks to end up with a neat transition. Apply a little heat so it looks presentable after you have rolled the splice under your foot. I do a splice with a total length of about a foot for my 1/2"and 3/4" 3 strand nylon sections of my anchor rodes. The chain I use on both is 5/16 BBB.
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Old 14-02-2016, 22:49   #15
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Anchor chain inspection

Thanks Jim,

I will give that a try on my next practice session. The strands came apart and made the afternoon quite interesting. As you reduce how do you keep them all together?

I have 3/8" chain. Not sure what style.


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