That would be the crankshaft pulley.
Lowest belt driven pulley on engine
It is fairly difficult to change a water pump on a Chrysler Cirrus. First, you remove the crankshaft pulley, remove one engine mount, take off the timing belt, and finally gain access to the pump. You can then feel free to switch them out.
If you mean crank pulley, the water pump has failed.
It should spin freely, but not wobble.It should spin freely, but not wobble.
The "bottom" pulley is typically the one that is driven off the crankshaft. It's called the "harmonic balancer".
Most likely called the harmonic balancer pulley.
That is the idler pulley. The other pully to the bottom left of that one is the tensioner pulley.
To loosen a tension pulley on a 1991 Chrysler New Yorker, turn the nut in the center of the pulley. This will allow the pulley to slide in the cut-out groove so that the belt will loosen.
It is a pulley that was used from 1994-2004.
its loose tighten the pulley
You can tighten the serpentine belt on your 2005 Chrysler 300 by tightening the tensioner pulley. Push the tensioner pulley to the right until the serpentine belt is tight.
The crankshaft pulley is the lowest pulley on the engine. Looking at the engine from the front which is looking at it from the passenger side fender the crank pulley is on the bottom of the engine and has a pulley with a pulley behind it with teeth on it.