Tight enough so the drive sheave does not slip and the motor draws the correct amperage, but not so tight that the squirrel cage bearings are damaged. There is a belt tensioning measurement to use but you need the distance between the pulleys to use it properly. Try Google. -END An old rule of thumb is you should have about a half inch of deflection when pressed at the center with your finger. Works with most drive belts
you would like about a 1/4" give in the belt
If it is a serpentine belt the automatic tensioner will adjust the belt for you. If it is an older "V" type belt--there should be 1/2" "play" at the middle of the belt, between the pulleys.
no
you can leave your furnace fan run continuos, it helps even the heat in the house, it also helps with condensation on windows.
no
you should have three belts total. Going from the fan towards the distributer the first belt should be the power steering, then the actual fan belt, then the third belt is the alternator / a/c belt, i hope this is helpful for you! So for the answer to your question, there is one fan belt, the second belt in from the fan!
Belt too tight, or too loose, or drive pulleys out of alignment, or damaged.
The serpentine belt and the tensioner on a 300 SE motor is part of the fan system that controls all of the smaller motors on the front of the engine. The serpentine belt helps turn the alternator, power steering pump, water pump, and the fan. The tensioner is a pulley on this belt that helps to keep the belt tight enough to stay on, but not too tight to hinder operation.
The belt(s) are probably too loose or too tight. Either way will cause noise.
Loosen the tensioner pulley. Put the fan belt around the pulleys. Pry the tensioner pulley to the right until the belt is tight. Tighten the tensioner pulley nut.
I need diagram of the fan belt for a 1997 jeep wrangler sport
With central air the furnace fan must be running to provide the air to the living space. If the furnace fan is not running then you get no air out of the ducts and the A-coil (the part of the ac system that is in your furnace duct) will freeze and shut down the compressor (the part that is outside).