Seen Your Mamba
Join Date: Aug 2007
Location: Niagara Region
Thanked 0 Times in 0 Posts
Rep Power: 10
I removed one of these typical early Catalina volcano thruhulls from my C22 last year. I used a sawzall to cut the volcano horizontally near-flush at its base and then used the grinder to finish up. See footnote * below before proceeding.
Less grinding/mess that way.
I probably have a snapshot of the first cut somewhere if you're interested. I think I used a metal cutting blade in the sawzall.
* I can pretty much guarantee there's no flange either. Grasp the valve with a large crescent wrench and turn it - it will surprise you easily it turns free and you can then pull it up and out, valve, tube, and all. That's what I did based on the concerns I'd read about how dangerous that particular installation method was (prone to failure).
Last edited by AboardIndigo; 04-04-2011 at 06:03 PM.