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Tensioner bouncing around a bit

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Old Sep 14, 2024 | 07:16 AM
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Default Tensioner bouncing around a bit

Took a vid, of my tensioner. It has a bit of bounce in it and I’m thinking it’s not the tensioner as I replaced it with a new one. The old one feels like it had more movement than this one.

I checked the HB with straight edge (okay screwdriver) and it has no wobble or bounce while running with the belt off.

the alt and water pump feel smooth with no wobble either.

the PS has a bunch of little nibs left on it from manufacturing where the belt runs… could that be what’s causing the tensioner to bounce like this? Am I missing something else?

The FEA brackets I used are from dirty dingo for the low mount alt and a mid mount PS. They are all tight and look to be running true.

the idler runs smooth as well…

what am I missing??
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Old Sep 16, 2024 | 01:48 AM
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that idler looks fine to me
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Old Sep 16, 2024 | 09:29 PM
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All crammed engines will cause it to bounce. It’s the overlap that causes the rough idle, and while this is taking place…multiple times a second…the engine is slowing and speeding up. Terrible explanation there, but that’s the quick and dirty version of it. The slowing and speeding up…rough idle…is what causes the crank pulley to slow and speed up the belt, hence the bouncing tensioner.
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Old Oct 20, 2024 | 07:01 PM
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Might be one of the accessories. On my truck 02 1500HD 6L, I had a bad AC compressor that caused my tensioner to shake.
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Old Oct 23, 2024 | 01:12 AM
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Ya know, I'm an 1d10T, butt I'll go for it anyway, just because I'm so STUUUUUUPID that I have to do things in a logical, rational, orderly, one-step-at-a-time, kinda way; the way STUUUUUUUPID people like me are forced to go through life because we're not [forrest_gump]smarrrrt[/forrest_gump] like lots of you other guys are.

Now that I've got that out of the way, let's all get STUUUPID here for a few.

Have you tried a new BELT? Yeah it's kinda way out there and all, that a dead BELT could cause a BELT to run unevenly; yeah I'm STUUUUUUUUUUPID and all that, and yeah, I know it all too well; butt, just sayin? TRIED IT?
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