Belt falls off of tub pulley also how do I tighten the tention on the belt?

loosen belt tentioner - remove old belt- mount new belt- tighten belt tentioner.

you may also want to check if there is any slack in the tentioner pulley as these often wear out too.

it should be the one that is about 5" and the belt goes around it. The arm that is connected to the pulley is spring loaded and when they wear out they loose the tension.
Also the bearing on the pulley go bad and they brake apart and the pulley falls off making your belt fall off.
Under side of the hood and the front side of engine compartment or by the wheel strut tower area there will be a sticker with a diagram of your belt and it will show your tentioner..

using a breaker bar or some other tool w/ 1/2'' drive, insert into idler, there is a square hole, remove belt tension, donot remove belt, but lift belt off say the alternator, it would help if you hang the belt w/ wire or something so as not to let it drop. using a 15mm wrench, remove mounting bolt to idler, remove idler. better to replace the entire ilder w/ pulley, as an assymbly, they wear out like any thing else. when istalling new idler, must be positioned correctly. theres a finger which protrudes out of idler, this must be inserted @ engine sideof idler. reinstall bolt, tighten, reposition belt, using breaker bar 1/2" drive again, remove belt tension, so you can get belt over alternator pulley, release tension , done ! make sure belt is centered, and on properly according to belt rounting. when satisfied w/installation , start engine, check your work, remember to visulize existing idler, etc., etc., before you start this so you can put on the new one on exactly the way the old one was !!!!!!!!!!1

The tentioner should keep the belt at the right tention. Are you sure its the belt? I had some squeaking in my 05' RSX and replaced the Tentioner Pulley and the squeaking went away. Maybe this could be the same case. Hope this helps.

Check the routing of your belt you might be missing the tentioner pulley or you could even have the wrong size belt check your model number and reference it to the belt size.Good luck

if its a 4.0 then not exactly. the power steering pump is the tentioner. its not spring loaded. you will need a 13mm wrench. loosen the pump a bit and tighten up the belt with a long bolt just under the pump from the air cleaner side. you will feel the belt get more tention. just dont over tighten it,

hi...

use a 15mm wrench on the face of the pulley and a 15mm socket with a swivel behind the bracket holding the pulley. You will be very close to the coolant temp sensor so be careful. loosen the bolt and the belt will fall off

to replace the loosened belt to normal position do the following......

Route the belt as it was and tighten in the reverse of what you did to remove it. A new belt may require the tension er to be slackened off even more to get it on. Belt routing diagram should be on the radiator.


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Just loosen nut in center of pulley, tighten adjuster, then re-tighten nut in at pulley

belt goes around drum and motor pulley and under tentioner

You Need to Replace the Belt Tensioner for this Repair. Until then you can go to the Local Auto Parts Supply and get a Can of Fan belt Dressing, This will make it Quite for a while. Spray it Right on the Belt and Pulleys. Please Rate My Response! Thanks!