Well, what I did was glue in the end disc so the foam is now one piece. I then oiled the filter. After oiling it, I noticed that I was now able to pull the filter up around the edge of the cage. When dry, it just stopped and didn't seal the housing. Well, now while oiled it stretches over the cage, and is squeezed between the cage and housing for a nice tight good seal. This just made this filter 100% better and I no longer have any issues with running it and expecting it to catch dirt like it should. I guess the oiling allowed the foam to stretch more and hold in place around the cage.




