Replacing Plastic Valves
I have a 1982 Newport 28' when I removed one of the 1" valves I found that the thru hull is straight thread how can a bronze Groco valve be fitted as it has a tapered thread? Is there a better way to this job?
Thru-hulls that are secured to the hull via a flanged nut and backing board (beneath the nut) can have a ball valve added to the threaded end of the thru-hull fitting. You will need to hold the thru-hull so it will not rotate from below, put plenty of PTFE thread compound on the threads of the thru-hull fitting and tighten it down as many turns as you can get before it binds. Use the biggest pipe wrench you can find/fit into the workspace. The thru-hull does not have tapered threads but the taper in the ball valve is enough to get a good seal.
All of the plastic ball valves that Capital Yachts used below the waterline should be replaced. Ideally all of them should be replaced with bronze or marelon; I prefer bronze. The thru-hulls themselves were heavy duty on my boat (a '79 N-41). The old fittings are twice the thickness of new ones and did not require replacement.
|All times are GMT -4. The time now is 12:38 PM.|
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012