1987 Mk II Lower Shroud U-Bolt Failure

[jonelli]

Had a different failure first... Mainsheet traveller block snapped in heavy winds during a small jibe and the boom went flying starboard and smacked the lower shroud and broke the U-Bolt. It was clearly corroded to begin with, and I know I should check them all.

Lower Shroud Chainplate Upgrade C-30

Catalina Direct, publishers of the Catalina 22 and Catalina 25 Owner's Handbooks and the largest supplier of parts and Lewmar winches for Catalina Yachts in the country

www.catalinadirect.com

My question though: Does anyone know off the top of their heads what size and make these are? Or a specific model number?
I found the upgrade kit on CD, which I don't need because I already have the originals as per 1987 Catalina Yachts, and the very friendly Warren in tech support couldn't tell me for sure what the make/model/size is but is guessing it was a Gerhauer part.

I also found this on CD, but not sure if it's the exact same one either. I will call CD and see if they know, but if not, I'll have to go measure mine. I'm trying to order one to replace this one before I pull it out.

Deck Tie-Down U-Bolt Kit C-34, C-36, C-38; Chainplate U-Bolt Replacement Kit C-30 '84->

Catalina Direct, publishers of the Catalina 22 and Catalina 25 Owner's Handbooks and the largest supplier of parts and Lewmar winches for Catalina Yachts in the country

www.catalinadirect.com

 

[Stu Jackson]

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This comes from this sbo thread by weekendrken:

1992 Catalina 30

Also: www.catalina30.com

 

[jonelli]

You might receive more boat-specific answers here:

Catalina 30 Groups Link

Thanks Stu, got some responses, but nothing useful. CD finally answered and they say they're sending me the right one. it sounds like whatever they use in their upgrade kit they think is also the OE part. We'll see. Thanks.

 

[jonelli]

CD sent me the non-web-listed replacement bolt that is part of their upgrade kit. other than being slightly longer it appears correct.
It's the part used in this kit:

Lower Shroud Chainplate Upgrade C-30

Catalina Direct, publishers of the Catalina 22 and Catalina 25 Owner's Handbooks and the largest supplier of parts and Lewmar winches for Catalina Yachts in the country

www.catalinadirect.com

I also noticed that they sell a stand alone bolt kit for something else that is almost half of what they charged me and it too appears to be the same thing.

Deck Tie-Down U-Bolt Kit C-34, C-36, C-38; Chainplate U-Bolt Replacement Kit C-30 '84->

Catalina Direct, publishers of the Catalina 22 and Catalina 25 Owner's Handbooks and the largest supplier of parts and Lewmar winches for Catalina Yachts in the country

www.catalinadirect.com

Last thing I noticed is that all my rigging is bedded with Silicone. I think I'm going to pull everything up after I replace this one and check it, and then rebed them with 4200 unless someone has another suggestion.

 

[dmax]

Rebed with butyl (buy "Bed-It" from MarineHowTo.com) - great stuff, many others will agree.

 

[jonelli]

Rebed with butyl (buy "Bed-It" from MarineHowTo.com) - great stuff, many others will agree.

https://shop.marinehowto.com/t/bed-it-tape

Not available.
4200 then?

 

[jonelli]

 

[dmax]

There are other sources for butyl but Rod spec'ed his stuff specifically for boats - I don't know of another brand to recommend. 4200 would also be a fine choice.

 

[jssailem]

Rod was selling the Bed-It Butyl Tape through a marine supply I think in Maine. He told me the outfit, but I did not need it immediately and just waited til he returned from a holiday.
Can not find the store.
I did find a Canadian outlet...

Butyl Tape - Marine Outfitters - Ontario Canada

Discover the best Butyl Tape at Marine Outfitters at competitive prices

www.marineoutfitters.ca