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Old 02-25-2015, 10:15 AM   #21
BrianSmith
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City: Wherever Smartini is
Vessel Name: Smartini
Vessel Model: 2002 Kristen 52' Flybridge Trawler
Join Date: Mar 2014
Posts: 487
Pencil zincs with steel threads?

The zincs on our Gulfstar 43 (Perkins 6.354's) when we bought it had steel threads, so that when the rest of the zinc corroded away, you could easily screw them out with a pair of pliers. But I'll be danged if I can find replacement zincs with the steel threads. Anyone know where to get these?

Alternatively, I do like the idea of using muratic acid to eat away the remainder of the zinc threads - is it really that easy? (Not as fond of using heat, although that seems viable, too.)

I just hate having to buy the new brass base every time I need to replace the zincs.

BTW - on our engines (1974 vintage), we have to cut the 2" zincs down by 1/4", or they hit something inside the HE and break off. Took me several zincs and lots of head scratching to figure that one out!
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