Anyone help me figure this noise out

[Tattoosbycompton]

It does it at idle then calms down started after changing to 120mm pulley they didn’t have a gates belt it’s on its way but want to confirm that’s the issue

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[Cory S]

Either a bearing going bad or tensioner arm bouncing a little?

 

[Proshop]

Either a bearing going bad or tensioner arm bouncing a little?

Im with Cory… could definitely be the tensioner arm bouncing since it doesn’t have the gates belt on it. I would go back to the old pulley and belt and see if it still makes the noise, if it doesn’t then wait for the gates to come in and reinstall the 120 and see if noise comes back.

 

[Tattoosbycompton]

Thanks guys monday I’m swapping to the gates I’m fairly confident it was the belt as well then all I have to do is wait for my tuner to fix the random shut off at start and the car will actually be finished

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