Wilcox critteden Seacocks

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6 years 11 months ago #2562 by George Myers
I'm getting ready to change out all my original W-C seacocks for Marelon ones. Anyone know just how the original bolts go? Are they thru hull with head on outside? Thanks, George

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6 years 11 months ago #2563 by Roy Belcher
George,
I replaced my two cockpit scuppers with new bronze seacocks - cost me $2,500! The old had to be cut out with a sawzall as the threaded, outer mushroom was frozen and could not be turned. Are the WC leaking?

Roy

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6 years 11 months ago #2564 by Michael Smolek
That is how mine are attached on my 12.8. They are large flat head, slotted bronze bolts.

I looked at changing out the big green WC seacocks, but was concerned that some are in tight spaces with difficult hose routing. I was concerned, maybe wrongly, that I wouldn't be able to reproduce some routing with different sized seacocks. In the end, I dismantled the WCs, mechanically cleaned off as much of the green as I could. Then cleaned with vinegar/water solution, and judicious use of muriatic acid, neutralized with baking powder. Then I clear-coated them in the hopes the green wouldn't come back (for at least a week). I replaced the rusty steel grease fitting with ss grease fittings and lapped the plugs using lapping compound.

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6 years 11 months ago #2565 by Robert Strickland
Yes, flat slotted bronze bolts. They are fared over, so you need to uncover them with a grinder. An impact wrench makes loosening the bolts easier, but not easy. A thru hull wrench with a large cresent wrench and extender to break the thru hull free of the seacocks. Sometimes the head of the thru hull can be ground off easier.
Dee. Allegria 199

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6 years 11 months ago #2566 by George Myers
Thanks everyone. Marelon website says they do not require bolts to be installed in their Seacocks flanges. I'm going to cut old ones off flush with inside hull.

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6 years 11 months ago #2567 by George Myers
OK OK ! D Day just 10 days away now . So there are many thru hull wrenches available but cant find any for old Wilcox thru hulls. I just want to unscrew them so the seacock can then be unbolted and removed. I don t want to remove the entire bolt and have to repair 27 holes thru the hull! Anyone know of a technique or wrench to fit into W-C thru hulls???

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