Leaking Moen Bathtub valve

Discussion in 'Shower & Bathtub Forum & Blog' started by b2001, Mar 30, 2008.

  1. b2001

    b2001 New Member

    Mar 30, 2008
    I've had a lot of experience in changing valves or replacing the washers or o-rings on traditional bathtub faucets where there are separate hot and cold valves.

    I've got Moen combination hot/cold valve where you rotate the valve. Water is leaking out of the faucet into the tub, which tells me that I've got an internal leak due to a bad washer or o-ring.

    I've taken apart the outer components, and cannot figure out how to proceed. I'm hoping the the entire does not have to be unsoldered, but that appears to be the case.

    Here is a picture:


    Any suggestions on what must be done? Thanks ...


    I found this on your site - I assume its the solution. The brass u clip is missing in my picture as I had pulled it out. So it sounds like I pull on the stem outward real hard with pliers ... I assume I tap back in with a rubber mallet ...

    Last edited: Mar 30, 2008
  2. jimbo

    jimbo Plumber

    Aug 31, 2004
    San Diego, CA
    Here is a diagram of a Moen positemp. Your trim might be different, but the valve body will be the same.>http://www.moen.com/shared/pdf/L2353pt.pdf>

    You need to turn off the main water before removing the clip. The cartridge will come out with a little coaxing, and NO MALLET is necessary to reinstall! It just slips in!
  3. Sponsor

    Sponsor Paid Advertisement

  4. b2001

    b2001 New Member

    Mar 30, 2008

    Thanks for the response. Problem is solved. I bought a replacement valve and a cartridge repair kit. I decided to use the replacement valve to save time (I've been jacking with this much of the day) - I'll use the repair kit on the next one.

    The key for me was this forum and the plastic tool that came with the kits that helps rotate the valve 45 degrees - it was easy to extract the valve after that. Sure enough, the rear o-ring on the original valve was worn out.

    Thanks for your help ...
Similar Threads: Leaking Moen
Forum Title Date
Shower & Bathtub Forum & Blog Help trying to replace leaking O-ring in Moen Traditional kitchen faucet Dec 13, 2015
Shower & Bathtub Forum & Blog Leaking Moen Roman tub faucet - can't ID brand - HELP! Feb 22, 2015
Shower & Bathtub Forum & Blog Replace non-leaking Moen Posi-Temp shower valve or cartridge? Sep 4, 2013
Shower & Bathtub Forum & Blog Moen shower/tub valve leaking from stem when water is on Mar 16, 2013
Shower & Bathtub Forum & Blog MOEN Bathtub faucet is leaking....not sure what to do Mar 9, 2012

Share This Page