Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

found in first oil change after rebuild...

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Old 07-08-2013, 03:30 PM
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Default found in first oil change after rebuild...

put about 250 miles on engine before i changed the oil. i'm using a magnetic oil plug, and was expecting to see a few shavings. but i found this. any ideas?
i used the dime to give an idea of the size.
Attached Thumbnails found in first oil change after rebuild...-pin.jpg  
Old 07-08-2013, 03:41 PM
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I'm assuming you are using stock rockers? It looks like the needle bearing out of the roller rockers. Time for the Comp or CHE upgrade.
Old 07-08-2013, 04:00 PM
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Originally Posted by 87silverbullet
I'm assuming you are using stock rockers? It looks like the needle bearing out of the roller rockers. Time for the Comp or CHE upgrade.
I actually had an upgrade done. Or at least I think I did. Lsr cam and springs, I'm sure of, but not sure about the roller rockers. Shouldn't that all come in the kit? Which if it did, that may be a piece from the old setup that was dropped by mistake.
Old 07-08-2013, 04:12 PM
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Its a needle bearing out of the rockers. For sure thing.
Old 07-08-2013, 04:12 PM
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I agree. Looks like a OEM rocker needle brg. Check the rockers.
Old 07-08-2013, 04:33 PM
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For sure a rocker bearing.

Trunion uograde ftw even on a stock car.
Old 07-08-2013, 05:47 PM
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Originally Posted by djloc79
I actually had an upgrade done. Or at least I think I did. Lsr cam and springs, I'm sure of, but not sure about the roller rockers. Shouldn't that all come in the kit? Which if it did, that may be a piece from the old setup that was dropped by mistake.
Originally Posted by Tainted
For sure a rocker bearing.

Trunion uograde ftw even on a stock car.
Over on camaro5 someone had this happen to him with his trunion upgrade. Comp sent him a brand new set.
Old 07-09-2013, 02:20 AM
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Originally Posted by Tainted
For sure a rocker bearing.

Trunion uograde ftw even on a stock car.
So once I get the valve covers off and I'm Lookin at the rockers and valve springs.... What general area, or what exactly am I looking for? Not sure where to check next.
Old 07-09-2013, 08:33 AM
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Originally Posted by djloc79
So once I get the valve covers off and I'm Lookin at the rockers and valve springs.... What general area, or what exactly am I looking for? Not sure where to check next.
Well you need to take all of your rockers off. If one spilled the others are surely soon to follow.

The needle bearings are inside the rocker at the pivot point. The trunion upgrade creates a cage around the bearings to stop them from falling out. You will want to look thoroughly EVERYWHERE and see if it was just one rocker or multiple ones that spilled.

If the bearings start going through your oiling system you can end up with a toasted motor.
Old 07-11-2013, 05:08 PM
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yep, needle from your rockers
Old 07-15-2013, 09:59 AM
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No doubt about it ... that is rocker bearing. There are probably many others in your engine. I would be surprised if there was only one that has come out of a rocker. Time for a trunion upgrade kit from Summit or Comp Cams.
Old 07-16-2013, 10:10 PM
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That is not a rocker bearing! I'm doing my trunion bearing right now! The rocker bearings are if that 1/4" this looks to be 3/4 the size of the dime.
Old 07-16-2013, 10:27 PM
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my rocker needles were way shorter than whats pictured aswell....
Old 07-16-2013, 10:39 PM
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Can we get a pic of the needle bearing next to a ruler/tape measure? Also a pic of one of your rockers will let us know if you already have the trunion upgrade....
Old 07-16-2013, 10:47 PM
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Unless its a needle from his upgrade...
Old 07-16-2013, 10:54 PM
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Looks like a lifter needle to me.
Old 07-16-2013, 11:47 PM
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Originally Posted by 96lt4c4
Unless its a needle from his upgrade...
Nope the upgrade trunion looks to be about the same size maybe a Tad bit smaller.
Old 07-16-2013, 11:49 PM
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Originally Posted by DietCoke
Looks like a lifter needle to me.
Do you mean the one that holds the roller in place? Because its alot bigger then that.
Old 07-17-2013, 02:48 PM
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Originally Posted by Briou
Can we get a pic of the needle bearing next to a ruler/tape measure? Also a pic of one of your rockers will let us know if you already have the trunion upgrade....
I'll take one this afternoon when I get home. My mechanic said that one or more of the lifters were damaged and very well could be a lifter bearing or pin.
Old 07-19-2013, 07:53 AM
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any update??


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