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Go Back   SailNet Community > On Board > Gear & Maintenance > Bow Eye?
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Thread: Bow Eye? Reply to Thread
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Topic Review (Newest First)
07-29-2012 06:55 PM
WDS123
Re: Bow Eye?

A 3 page thread on how to mount a Boweye on a Lightning ?
07-29-2012 03:32 PM
bandaidmd
Re: Bow Eye?

More than likely where the threaded part of your bow eye is going to protrude into the boat will be in the "vee" formed by the stem. Unless you cut some blocking to flatten out and reinforce a spot your nut and washer won't have anywhere to sit but on thier edges. Spend a little extra time now to mount it correctly and you'll never have to worry about it ,or someday when the tides low and you have to really work to drag her back on the trailer and the whole bow eve flys back at you hooked to the cable you will wish you did.
07-29-2012 02:09 PM
JeffTT
Re: Bow Eye?

Hmmm. Yeah im kinda thinking it might be a bit much to block and glass something like a bow eye. The hull seems sturdy to me. I just dont want to have to redo the bow eye, or damage the hull by not doing this right. If the glass doesnt add any sgrength, then what is the point. Just put the eye in, and caulk it? No glass needed? Btw, is there an optimal distance from the water line to put the bow eye?
07-27-2012 03:28 AM
chrisncate
Re: Bow Eye?

U bolt, backing plate, bed with butyl. Anything above the waterline that will flex even a little ought to be bedded with butyl.

What's the problem again exactly?
07-27-2012 01:25 AM
MedSailor
Re: Bow Eye?

Quote:
Originally Posted by JeffTT View Post
Ok. So im going to use life caulk for the bow eye. A friend at work suggested that I also put a block of marine plywood behind the u bolt and glass the whole thing. Is this necessary, has anyone heard of the u bolt pulling out or cracking a fiberglass hull? It just seems like overkill to me, but then I am new and don't have alot of experience working with boats.
Overkill!!!!! Not necessary!

If your fibgerglass is really really flimsy you could consider the plywood block option but why on earth would you glass it in place? The glass wouldn't help it keep from pulling out. The glass might keep it from rotting over time, but in that case you're better off with a piece of aluminum as a backing plate. You can cut fairly thick aluminum with a jigsaw.

Back to the not necessary part.... What forces do you expect the bow eye to endure? You're going to use it to slide (float) the boat up the wet skids of a trailer. That's not much force.

Use the bolt, life-caulk, and be done with it. One tip for working with the life-caulk 4200, 5200 or other caulk is to have a fingerbowl of soapy water nearby. Apply lots of caulk, let it sqeeze out as you tighten the U'bolts and then wipe it off with your soaped up finger. The caulk won't stick to your finger and you can get a really professional looking bead that way just by running your finger along the edge.

MedSailor
07-26-2012 09:11 PM
JeffTT
Re: Bow Eye?

Awesome. I will not use wood then. I dont care about pretty in this case. Definitely concerned with functionality though. Ill probably get the gear in a week or two and post some pics of how it turns out. (Weather pending). Thanks for all the info.
07-26-2012 10:41 AM
Stumble
Re: Bow Eye?

I don't like adding wood as a structual member where it can be avoided. If it is done perfectly it can be fine, but if not, the wood rots, and holds water against the stainless.

I would use either G10 board, or as Riz suggested metal strapping. as a backing plate.
07-26-2012 09:49 AM
captainrizzo
Re: Bow Eye?

Quote:
Originally Posted by JeffTT View Post
Ok. So im going to use life caulk for the bow eye. A friend at work suggested that I also put a block of marine plywood behind the u bolt and glass the whole thing. Is this necessary, has anyone heard of the u bolt pulling out or cracking a fiberglass hull? It just seems like overkill to me, but then I am new and don't have alot of experience working with boats.
I would suggest that you use some sort of backing. Marine grade plywood will work, but you may have a difficult time as the inside of the hull at the bow will form a V. Tough to get plywood to be flush with the V. When I replaced my bow eye on a previous boat (because it broke), I used stainless straps and bent them to the shape of the V (Stainless straps are like a band of metal with holes every half inch or so). Then I glassed over it with fiberglass cloth. It was ugly, but strong as hell.
07-26-2012 08:34 AM
SchwarckT
Re: Bow Eye?

It does happen. The PO of my O-Day Mariner did it, so I had to replace it.
07-26-2012 07:13 AM
JeffTT
Re: Bow Eye?

Ok. So im going to use life caulk for the bow eye. A friend at work suggested that I also put a block of marine plywood behind the u bolt and glass the whole thing. Is this necessary, has anyone heard of the u bolt pulling out or cracking a fiberglass hull? It just seems like overkill to me, but then I am new and don't have alot of experience working with boats.
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