HOW TO FIX LEAK ON AMER. STANDART SINGLE CONTROL KITCHEN FAUCET? LEAK IS AROUD THE UPPER PART OF SPOUT BY CARTRIDGE

You have to lube the seals. New seals will be much firmer than leaking ones...but clean and lube is necessary.

Here's a link to show you how to get the spout off using "strap wrenches" The allow you to get the nut off at the base of the faucet spout without harming the chrome finish.

http://blog.trebacz.com/2012/12/how-to-fix-leaking-moen-kitchen-faucet.html


There is also a video at the bottom of the blog post showing how I did it.

Moen has a diverter built in that will need to be replaced.

use the same steps as when you replaced the cartridge, but this time you will need to remove the spout, there is a small diverter, you will see it when spout is removed.

take this part with you to the hardware store, along with the O Rings from the spout, as they will need to be replaced also

use a non silicone faucet lubricant when putting back together

did you replace the spout, -o- ring's. they would cause a leak to show up there as well.no need to pull cartridge again,just handle,and then pull up spout and that is it. there should be a small packet of lube w/ -o- ring kit,lube up around shaft and new -o- ring's.available at any good hrd ware store

This might mean that the diverter in that controls the sprayer needs replacing. It is located behind the valve body underneath the tub spout sleeving

if it is dripping from the spout then there is a cartridge that needs replaced...1225 for the single handle type and 1224 for the 2 handle type. Moen does not use O-rings in their valves. If it leaking around the base of the spout there is an oring kit that you will need and you will have to pull the spout off to access them. Most Moen faucets use a 117 kit for the spout but there are some different ones.

You need to remove handle and cartridge and spout should come off to replace the rest very common leak

cartridge does not stop that type of leak. If it is leaking from around the base of the spout it is o-rings that are the problem that are onthe valve after you pull the spout all the way off.

1. If it's "leaking" from the body then, the O-Rings between the body of the faucet got gunked up with minerals from your water. This interferes with the seal.
The answer is to take some grit cloth/very fine sandpaper and clean the inside of the spout body. Wipe clean. I would also suggest replacing the O-Rings on the faucet body, but at the very least wipe the O-rings and faucet body clean.
THEN: lubricate the inside of the spout body AND the O-Rings with silicone grease. It's translucent and readily available and the only thing I would ever use for a faucet repair. NOT plumber's grease, NOT WD-40.
Reassemble and enjoy.

2. If it's dripping, the you need a new cartridge. You can get them for FREE from the hardware store if you have the old cartridge to trade them. The problem is that Moen cartridges are water-sealed into place and you need a special tool to break that water seal. The special tool (just a tiny piece of specifically shaped plastic, really) comes, you guessed it - with the new cartridge.
Two possible solutions: a) bite the bullet and just buy the cartridge (~$25) or buy a Moen cartridge puller, usually available from the hardware store as well for about the same price. Ask, they might even lend you one.
The point of whichever tool you end up with is to rotate the cartridge itself inside the faucet body to break the water seal so that you can pull it out with a set of pliers. There will be a retaining clip to pull out as well.

www.plumbingpartsdepot.com/moen7300.gif
http://img2.timeinc.net/toh/i/a/plumbing/faucets-toilets-07.jpg
Good Luck.

base leak is from bad o ring or loose spout very easy fix you can get a washer kit at lowes all you need is a allen wrench(sometimes comes in kit) a pair of channel lock pliers