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Conference unifix::sailing

Title:SAILING
Notice:Please read Note 2.* before participating in this conference
Moderator:UNIFIX::BERENS
Created:Wed Jul 01 1992
Last Modified:Mon Jun 02 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2299
Total number of notes:20724

2151.0. "Thru Hull Fitting Problem" by NAVY1::MEISSNER () Wed Aug 03 1994 15:22

    Problem:  A british boat in america...
      
       Thru Hull Fitting on Thames Marine 26 Snapdragon, 1971 vintage.
    
       Gate valve from cockpit drain, someone had a iron nipple
       going from gate valve to hose to cockpit drain.
    
    
       Threads approx 12/inch, 1 1/8 OD....Threads in gate valve 
       are clogged up with iron.. I would replace gate valve with
       a seacock but I am not sure what the threads are....
    
       If I plug the thru hull, remove the gate valve and try to replace I
       run the risk of: 1, breaking loose the thru hull which appears to
       have some glass surrounding it, or 2. Not finding a seacock with 
       threads that match the thru hull fitting.
    
       
       I csn't get the junk out of the threads to use a thread gage.
    
       The gate velve says "Jones"
    
       Do I need to buy a 1971 British Seacock with ???? threads?
    
       Do I need to replace the thru hull?
    
       Will a 1" NPS seacock do the trick?
    
       
       Any help will be appreciated
    
    
       Thanks
    
    
       Ken Meissner 
    
       DTN 341 3730
        
        
     
       

    
T.RTitleUserPersonal
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2151.1CONSLT::MCBRIDEFlick of my BIC Scarecrow?Wed Aug 03 1994 17:318
    What about twisting it off and taking it to a marine store to see if
    they have one that fits?  Our 1969 vintage Soctland built boat accepted
    whatever the stadard size was 1 1/8 (?).  No problems with a 1990
    vintage valve.  I doubt you will distrub the through hull unless it was
    not cinched down with a locking nut or glassed before the valve was
    installed.
    
    Brian
2151.2CAPNET::JSTONEThu Aug 04 1994 16:476
    re: .0,  Geeze, if you are who I think you are, I'd suggest sinking the
             d*$%#@ boat. ;^)   Seriously, I'd agree with Brian, if you can
             get it off.  If this is an opportunity to get rid of the gate
             valve, I'd take advantage of it.
    
             Joe
2151.3THreds?NAVY1::MEISSNERFri Aug 05 1994 11:5517
    
    I would remove the gate valve if I was sure to find a new one with the
    correct threads,,
    
    ,
    If I can't match up the threads I will need to change the Thru Hull
    fitting which are molded into the hull, 
    
    So I need to fine a valve that has 12 threads per inch and 1 1/8 OD
    approx.
    
    Or change the Thru Hull in the fall///
    
    thanks
    
    
    ken
2151.4CONSLT::MCBRIDEFlick of my BIC Scarecrow?Mon Aug 08 1994 18:375
    Are you trying to do this in the water?  I would not suggest changing
    the valve if the boat is in.  Your thread spcifications sound common
    enoungh but I would not risk sinking the boat to make the change now. 
    
    Brian