American Standard two handle tub valve

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by jm66208, Oct 15, 2013.

  1. jm66208

    jm66208 Member

    Joined:
    Aug 17, 2011
    Location:
    Kansas City
    American Standard two handle re-nu tub valve

    Anyone familiar with these? I believ it is a re-nu. Stem leaks at front seal where marked with red arrow only when water is running. Gasket at that point doesn't seem to be compressing when I tighten the cartridge. Seat on the body looks good. Another plumber told me the body was most likely cracked, so I removed it. I can't see anything wrong.
     

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    Last edited: Oct 15, 2013
  2. jm66208

    jm66208 Member

    Joined:
    Aug 17, 2011
    Location:
    Kansas City
    stem.jpg Here is a pic of the cartridge assembly. The barrel (back end) of the stem seems to be seating because the tub spigot doesn't drip water when shut off. It's almost like the assembly is "too long". If I remove the brass washer between the barrel & the stem portion, it seems to tighten up just fine, but I'm not sure that removing the washer is OK.
     
    Last edited: Oct 15, 2013
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  4. hj

    hj Moderator & Master Plumber Staff Member

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    Removing the washer would be one reason why it would leak there. Is there a washer between the two pieces?
     
  5. jm66208

    jm66208 Member

    Joined:
    Aug 17, 2011
    Location:
    Kansas City
    Yes, the brass washer is there. (blue arrow. That's the washer I'm talking about removing). there is also a rubber washer where the red arrow points to, but with everything tightened down, it is barely compressed. Like I said, it's like the stem assembly is just a bit too long.
     
    Last edited: Oct 15, 2013
  6. jm66208

    jm66208 Member

    Joined:
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    Location:
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    So I removed the brass washer, which basically makes the cartridge about 3/32" shorter & everything works just fine. Just not sure why. Anyone have any idea who I could call for advice on this?
     
  7. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    As long as it works, nobody. Your "Re-Nu" barrel has the "O" ring on the end so it does not need as much pressure to seal it to the valve body as the old "all brass" ones did. Yours also has the newer "straight" sides, rather than the "necked down" end of the older sleeves, which your valve probably had originally, and might also make a difference.
     
    Last edited: Oct 16, 2013
  8. jm66208

    jm66208 Member

    Joined:
    Aug 17, 2011
    Location:
    Kansas City
    Thanks. I cleaned it up, and reinstalled it and am just thrilled that after 80 years, it works, and looks like it could go another 80 years.
     
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