How do i remove and replace a moen cartridge 4000

SOURCE: removing a moen cartridge

Remove the retaining clip and then take a pair of plier or channel locks to grab the stem and work that stem side to side gently as you pull up or out.

SOURCE: New MOEN 1222 cartridge leaks

remove it and carefully inspect it, you might have scuff'd up the rubber's on the cartridge when you inserted new one.clean out,look in hous'ing for any foriegn mat.etc .you may need another new cart.

raj somaiya

• 2272 Answers
• Posted on Jun 07, 2010

SOURCE: how remove the broken bathtub cartridge(Moen 1222)

The exact procedure to remove the old cartridge is with a plastic removal tool.With replacement cartridge you have to buy this plastic removal tool.Also there is same metal removal tool available.With the help of this tool you can easily remove the old cartridge.
Moen Cartridge Replacement Instructions

Moen shower faucet cartridge replacement is a project that will take some time to get done right. When is it time to replace a Moen cartridge? If you are like most people, you won't want to replace your old Moen cartridge until your old cartridge is starting to show its age.

Replacement is necessary, usually, once the old faucet starts to drip. Thankfully Moen faucet cartridge replacement is not difficult. However, if you are uncomfortable with doing the repair yourself, do not hesitate to call a professional plumber to do the job for you. This will guarantee that the job is done right.

If you follow these Moen faucet cartridge replacement instructions you will be able to replace your old cartridge by yourself. First of all, as with any plumbing repair, make sure that the water supply is turned off. Open the faucet to remove water pressure from the lines and let the remaining water drain from the pipes. You will then need to remove the faucet's handle by removing the decorative cover and removing the retaining screw. This will allow you to remove the handle.

Once the handle has been removed, work on releasing the splash plate from the wall. Generally there will be one or two screws to remove and the plate should release from the wall easily. From here the process begins to get a little trickier. Insert a shower stem socket onto the faucet valve's retaining nut and release the nut. Your Moen cartridge removal will be complete once you grab the cartridge with a pair of pliers and pull straight out to remove the old cartridge.

Clean any surfaces that you have access to and replace with the new cartridge. Follow all of the previous instructions in reverse order to re-assemble your shower faucet. Check to make sure that all the connections are tight before turning the water back on and testing the system out.
Now in your case the broken/cracked while removing the old cartridge so try this procedure carefully to get the stuck -up old cartridge out.
TAPPING the Threads into the Cartridge:
Carefully  hold one tab on the cartridge tight against the brass lip on the faucet body with needle nose and try  to drive the 1/2" tap into the smaller bore of the cartridge. It will take  about 15 minutes to slowly work the tap in all the way (maybe 3 turns?). Then  back out the tap... remove needle nose. [remember to turn the tap 1/4 turn back, for each 1/2 turn forward ... this clears the metal particles from the tap and makes the next 1/2 turn forward go smoother].

Next, assemble a 1/2" x 4" threaded rod, so it had threads all the way to the two jam nuts on one end)... If you use a bolt, get one with threads all the way up to the head. you may find it hard to find - so try a carriage bolt and spin a nut all the way up to the head .... continue: 

next on the bolt goes a 1/2 nut (this is the "jacking nut") and a flat washer so the jacking nut can spin easily against the next piece, a 1/2 drive socket (7/8" ) with the square hole toward the washer and jam nuts ( bolt head ).
The open end of the socket faces the brass body of faucet and rests on the round brass lip... having the same inside diameter. This allows a space for the cartridge to be pulled into ( a cavity). Thread the bolt into the tapped cartridge and snug it up so the 7/8" socket is aligned with and resting against the brass body. If the cartridge spins smooth, the threaded rod is GREAT. You can just work with the 1/2" rod and use needle nose (or similar) to stop the  cartridge from spinning, to get the rod threaded into the tapped threads in the cartridge... then, slip on the socket, washer and nuts.

Now snug it up tighter. Check socket alignment. Then begin turning the jacking nut ( the "extra" nut) until it contacts the flat washer and 7/8" socket. Now, as you continue to tighten the jacking nut, it will pull the 1/2 bolt (threaded rod) away from the faucet... and the cartridge will come along too. [You have to prevent the 1/2 rod from spinning while tightening the jacking nut. put a wrench on the bolt head.]
This procedure is bit lengthy and requires some appropriate tools,but this will release the stuck cartridge out.
Thanks. keep updated for any more query.you can rate this solution and show your appreciation.

SOURCE: replaced moen teo handle cartridge 1224 now faucet

the lines the cartage attaches to will have seals or teflon tap. if the seal has a small nick, it will leak. Or if the tape was applied in the incorrect dircection or was cut it could also creat a leak

SOURCE: I have a Moen single

Always lub up the o-rings with cooking oil so it would seat better.Some will damage easy and keep wearing when not placed in a lubed up hole. Hope this helps.