Quote:
It's clear to me that during operation, the orange rubber valve would be deflected down against the main filter as oil flowed into the filter via the holes in the baseplate.
So, at least for this filter (bought between 1 and 2 years ago by the way), the anti-drainback valve looks like it's perfectly functional, and does not need to move the main filter any in order to work.
I used the clamp in order to make it easier for me to take the side picture. It wasn't real tight. Are you sure the adbv is on the inside of the baseplate? because the cut is on top? The neck on yours looks longer. Mine had no space for the valve to open.
It's clear to me that during operation, the orange rubber valve would be deflected down against the main filter as oil flowed into the filter via the holes in the baseplate.
So, at least for this filter (bought between 1 and 2 years ago by the way), the anti-drainback valve looks like it's perfectly functional, and does not need to move the main filter any in order to work.
I used the clamp in order to make it easier for me to take the side picture. It wasn't real tight. Are you sure the adbv is on the inside of the baseplate? because the cut is on top? The neck on yours looks longer. Mine had no space for the valve to open.