So I've had an oil leak in my spark plug tubes for awhile now so I finally broke down and bought new seals. While replacing the seals I noticed the set of gaskets/o rings I received contained a few unknown items. 4 thin black plastic circles. I cant for the life of me think of where these could go.. Not to mention I've tried just about every spot for them. I have circled the black circles in yellow in the picture. As you can see I already have the Gaskets installed in the tubes, just wondering what these plastic circles go to. Thanks guys!

 

They go underneath the rocker arm shafts. Fast forward to about 8 minutes, 45 seconds:

‪Spark Plug Well Oil Leak Fix, Honda Accord‬‏ - YouTube

 

The F22B1 (Ex) does not need them, but F22B2 (LX, SE?) does.

regards