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Well, since no one is forthcoming with this information, I found out today that the allen wrench on the caliper pins is apparently 7 mm, a size not usually offered on most sets. If you have information to the contrary, let me know. I had the guy at the parts store pull a hardware kit and that was the size. Hope this helps someone. Locksmith Hamburg Ny 24 Hour Locksmith 716 249 2944 in Hamburg Ny
I'm not sure of the size. I have an allen socket made for GM brake calipers!! But i would guess it is a metric size, maybe a 12 mm. Call an auto parts store and they can pull the tool and tell you with a phone call. Good luck.
The tensioner will keep the belt tight without having to adjust. It's on a spring loaded type arm. The tensioner is on a arm, if you look at the center of the roller you will see either a 1/2" hole or it could be a allen type wrench hole. You will need to fit a ratchet into the hole or an allen wrench with a pull handle for better leverage. Once you have this inserted into the hole, you will either push or pull slightly to compress the spring which will give you room to fit the belt over the last pulley. Once this is done the tensioner will automatically tighten the belt once you release the pull handle. You are set and ready to go
easy job all you need is a size 14 wrench and find the tensioner pully once youve done that take your wrench and put it on the nut on the front of the pully and pull upward once you see the belt to get loose enough to pull from the alternator pull it off work it in front of the fan until its out. make sure to draw a picture of the way it was routed so you can put it back on without a problem you will need to pull the tensioner while you are reinstalling the new belt so you will have enough slack in the belt to push it over the last pully. also take the old belt with you to the parts store so you can compare the size and part number from the old one. theres nothing more frustrating then to get the wrong part and figure it out when your trying to put it on
This doesn't sound like a problem with your idler pulley to me, more like an axle or wheel bearing? But to check your pully just pull it back with the correct tool, some use a square 3/8 or 1/2 regular socket drive and a breakover works great. some you can just get the correct size boxend wrench on it and pull it back, after you have the tension off the belt remove the belt, spin idler pully and see if it is bad, try and wiggle the arm back and forth with a pry bar. it should have very little play in it. I hope this helps you Isolate your problem and Merry Christmas!