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View Full Version : "Stern eyes" / U-bolts



cutwater
06-07-2007, 03:36 PM
I am mounting some 3/8" U-bolts on the Minx transom for stern trailer tie-downs since all it has right now is the rear lifting ring (I will also probably use these to pull a tube every once in a while as well). I'm thinking this should be no problem???

They come with some very minimal steel backing plates. Am I going to need to beef up the plates, or do these look sufficient? Do any Donzi models come with these from the factory?

MOP
06-07-2007, 03:54 PM
The transom is about 3/8" outboard, I would put 1/2" plywood backers about 4" square that will be more then enough.

Phi

gcarter
06-07-2007, 03:58 PM
The transom is about 3/8" outboard, I would put 1/2" plywood backers about 4" square that will be more then enough.

Phi
This is what Donzi put on from the factory.

cutwater
06-07-2007, 04:57 PM
Perfect. Thanks for the help.

cutwater
06-21-2007, 04:40 PM
I'm finally getting around to putting these stern eyes on this weekend, and I've read some great past threads about drilling fiberglass. Two questions:

- The Dewalt #DW1956 pilot point bit set only comes with the 3/8 bit then jumps to 1/2. Will I not need slightly more clearance than 3/8 will give me since they are 3/8 bolts and I will also have to account for the thickness of the epoxy when I seal the core? If so, I have to use a regular bit which defeats the purpose of the pilot points???

- Do I really need 5200 on the topside of the transom, or could I use 4200 or a silicone sealant? I don't anticipate having to take these off anytime soon, but they are above the water line and I'd like to leave my options open...

Thanks.
John

gcarter
06-21-2007, 05:33 PM
A countersink in your drill will very effectively cut the gel w/o chipping it. Do that first on your 3/8" hole, then drill to 7/16".
Use a very minimal amount of 5200 around the studs and that will be fine.
BTW, when I replaced these on my Minx, I made the backing boards out of Starboard.

MOP
06-21-2007, 05:44 PM
I use silicone on things that may need removal down the road, 5200 is a pain!

gcarter
06-21-2007, 06:51 PM
I use silicone on things that may need removal down the road, 5200 is a pain!
On second thought, I second that motion.

Pismo
06-21-2007, 08:06 PM
No 5200.

Barry Eller
06-21-2007, 09:17 PM
I use silicone on things that may need removal down the road, 5200 is a pain!
"SILICONE" YES!:smileybo::smileybo::smileybo::smileybo:

MOP
06-21-2007, 09:35 PM
:smileybo::anchor: