having trouble with belt tention ?
Most idler pulley's are near the top and usually quite easy to get to. Press on the belt somewhere, enough to deflect it a couple inches and watch to see which pully is mounted on a tension spring. That is the idler pulley.
Are you talking about the "idler pulley"? They are quite simple to change. Loosen the serpentine belt by using a socket on the center of the tensioner pulley, slide the belt off the idler pulley, use a socket to pull the center bolt of the idler pulley and replace the pulley with a new one.
In order to change the serpentine belt on a 2005 Pontiac sunfire you must first locate the idler pulley. You can do this buy finding the pulley that is attached to a steel arm about 6 inches long. These engines are transverse mounted meaning that you may have a difficult time locating this pulley if you do not know where it is or what it looks like. However if you can recognize the idler pulley you will need a long wrench or breaker bar. I believe the correct size socket or wrench for the pulley is a 15mm. If you are using a wrench position the wrench on the bolt so that the wrench is leaning as far to the front of the car as possible because you will need to push or pull it quite a ways towards the rear of the car to loosen the tension on the belt. Once you have accomplished this you can simply slide the belt off of the most readily accessible pulley and release the idler pulley. After removing the old belt be careful to route the new belt correctly. Incorrectly routing a belt could lead to severe problems. After routing the new belt around all other pulleys, pull the idler pulley back into position and work the belt onto it. This may be difficult as the belt will more than likely have a seemingly tighter fit than the old one. This is because the old one has been stretched out over time.
Quite likely it will have several.
no its quite the same
It turned out to be quite simple. The tension pulley is spring loaded. Just put a wrench on the nut of the pulley shaft and you can move the pulley to relieve the tension (do not to loosen the nut) and slip the old belt off. Same procedure to install the new belt. Tension pulley is behind the radiator and a little left of center. Just remove the air intake duct above the radiator. Mine is a '97, but should be similar.
1-remove mower deck. 2 disconnect elect. clutch 3 unbolt pulleys from crank shaft. 4 remove belt from idler pulley behind steering plate. 5 pull upper crank pulley down about one inch remove belt .6 install new belt reassemble pulleys Not sure I'd recommend trying to lower the pulley. I ended up buying a pulley puller and still bent the pulley. And it didn't just break loose and come off - I had to use the pulley puller all the way down the crank shaft. Next time I am going to try undoing the engine bolts and sliding the engine back an inch or 2.
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The hardest part of changing an idler arm is getting the linkage separated. To do that you will need a ball joint fork and a big hammer. The end of the idler arm has a tapered shaft that is difficult to pull out. Remove the cotter pin, remove the nut, then start pounding the ball joint fork into the area between the idler arm and the tie rod with your big hammer. The tapered shaft is usually so tight that it takes quite a bit of effort to pull it all loose, but it will eventually come out. After you have pounded quite a while the thing will eventually come out, THEN disconnect the rest of the idler arm from he frame of the vehicle. It can be one of the more frustrating jobs related to working on automobiles. This particular vehicle has TWO idler arms, and they usually go bad at the same time. You will probably want to get the alignment checked after replacing the idlers.
it is quite involved it is behind the engine front crank pulley you need to remove the oil pan and the pulley not to mention the radiator to give you some space to work
Yeah, quite easy remove window & replace with care...
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