Timing belt slapping lower timing cover

[radiod]

I've been trying to track down this noise for a while and I finally found it. My timing belt is slapping against the side at ~1750rpm (and wavering again at ~3500rpm, just not bad enough to slap). Any other rpm's (higher or lower) it straightens up nice and tight. At first I thought it might be an issue with tension, but this is on the side that is not on the tensioner pulley. It's a brand new belt. Anybody ever seen this before? Is the belt stretched?

I've got a pretty crappy video up if you want to see it (or rather hear it). You may want to turn your speakers way down for this one because the audio really sucks and it hurts the ears at any sort of real volume. If you're looking for the waver it's easiest to see towards the end of the video.


[video=youtube;Rqk4DRvWNRg]http://www.youtube.com/watch?v=Rqk4DRvWNRg[/video]

 

[toyotanos]

I think your belt is not tight enough. I haven't had that problem with my 7M, but it happens to 5s-FE Camry's all the time. Once the belt loses tension (stretching/loose tensioner) it slaps the timing belt cover around 2-4k rpm. Double-check to make sure you don't have slack in your belt!

 

[hvyman]

You should have equal tension on both sides of the belt.

 

[whitemike]

When installing the belt, you need to make sure you have no slack on the side without the tensioner. If there is slack over there, there will always be slack due to the nature of the gears.

-Mike

 

[radiod]

I'll check the tension between the two sides. That might very well be the problem. I know I had tension on the other side, but I didn't think to check how equal it was. Glad I don't have to take off my pulley and junk though again.

 

[Poodles]

Follow the TSRM to the letter. There is a reason they tell you to manually rotate the crank and then tighten the tensioner...