B&S 120000 series, piece broke off from intake manifold and jammed valve

rlb81

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  • / B&S 120000 series, piece broke off from intake manifold and jammed valve
B&S 128M02, piece broke off from intake manifold and jammed valve

I lost compression on the engine and when I tore it down I found this little piece jamming the intake valve. I pulled the valve to remove it and reinstalled the valve with no issue. Still in the process of putting everything else back together.

It looks like this is some kind of baffle (to smooth the air flow??), is it necessary? The intake looks to be fine other than this piece popping out, so I don't want to buy a new one just for this. There was also no gasket on the intake, but that's another story. I'm inclined to reinstall the intake as-is and toss this little piece in the trash.

Edit: engine model is 128M02 0412-F1

IMG_20170801_174107.jpg
 
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BlazNT

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  • / B&S 120000 series, piece broke off from intake manifold and jammed valve
Im inclined to say it is not needed either but you have not given the model number off the engine so can not be sure.
 

rlb81

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  • / B&S 120000 series, piece broke off from intake manifold and jammed valve
Engine is 128M02 0412-F1
 

BlazNT

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  • / B&S 120000 series, piece broke off from intake manifold and jammed valve
The part fits on 8 (give or take) different engines. I personally would install like it is. One note: In all the pictures of the intake part I did not see the broken off part. Could it have come from some other place?
 
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