Small disk found in float bowl

[wr420]

Hi

I have been struggling with dialing in carbs on my 67 911 with Weber IDA’s and tore them apart to give all the passages a thorough cleaning cause 1 or 2 cylinders seemed to not respond consistently to idle mixture adjustments. I am new to Porsche but not new to cars in general. When I pull the floats out I see what is below. In the bowl without the AP check valve, there is a small disk sitting on the bottom of the bowl. I thought, wow, they put a magnet in here! But not so much. It’s not metal, more like fiber. It seems to fit well in a hole in the bottom of the bowl that I “think” goes no where. It seems strange to me that they would use a fiber material in gas instead of a metal plug. Any ideas?

Thanks
Matt

[E Sully]

There are quite a few fiber, metal, and rubber bits in the carburetors. The question is where was the one you found supposed to be.

[75 911s]

Sounds like someone screwed up during the last rebuild. Proceed with bias on your rebuild.

[stownsen914]

Yeah there's not really any other good way for something like that to get in there, other than someone putting it there even if accidentally.