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Old 03-11-2012, 08:28 AM   #1
megabyte5689
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Member#: 313179
Join Date: Mar 2012
Exclamation 2009 impreza serpentine belt issue

Hi I have a 2009 subaru impreza with the 2.5l(no turbo). I recently replaced my alternator belt about 4 months ago. I took it in to the stealership to have the oil changed and they said that they noticed the belt was kind of chirping. This made sense to me because before I changed my belt I made a tick mark off to the side of the adjuster to annotate the previous tension that way I wouldn't be messing around with the right or wrong tensions. Well to make the long story short the new belt felt a little too tight at that tick mark so i put it slightly below that mark just to be on the safe side. Well after I got the oil changed I asked them whether the belt was too loose or too tight and they said that they really couldn't tell because the tensioner bolt was bent. They told me I should get my money back from whomever did it. Well I know this is nonsense because I did the work myself and I know I didn't bend the bolt. They suggested I get a new bolt and said it was gonna cost me about 80 bones. So I got back home and popped the hood and noticed that they indeed adjusted the alternator belt and that it was above the sharpie tick mark that I made 4 months prior and that the bolt was slightly bent. I drove around for the next 2 hours looking for same size bolts to fit in the tensioner area, I finally found some at home depot. I took the old one out and it wasn't that bad. My question is do I really need to replace this? I'm under the impression that the two other bolts, the alternater one, and the other alternator bolt are what allow the tension changes. The vertical one is the one that's supposedly bent out slightly. If I'm correct that just helps raise the alternator up and down, it's not what holds the tension. The reason why I'm asking this is because I'm getting ready to go on a 400 mile road trip and I'm not trying to get stranded lol
All replies are greatly appreciated
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Old 03-11-2012, 01:31 PM   #2
Rally Monkey
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The long vertical bolt is the tensioner. It bent because "someone" did not loosen the retaining nut before cranking on it. The bolt being slightly bent now is no big deal.
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Old 03-11-2012, 06:48 PM   #3
CosmoTheCat
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What he said. No big deal as long as it still turns enough to allow you to alter the tension. The horizontal bolt is what clamps down and holds the tension.
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Old 03-11-2012, 07:15 PM   #4
AZP Installs
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Quote:
Originally Posted by Rally Monkey View Post
The long vertical bolt is the tensioner. It bent because "someone" did not loosen the retaining nut before cranking on it. The bolt being slightly bent now is no big deal.
+1

-mike


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Old 03-11-2012, 07:31 PM   #5
megabyte5689
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Thank you so much for the replies, and advice! I will be having some words with the dealership for messing it up.
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