New 4.0L has a roll pin inserted in the oil filter adapter. Can't install oil filter. How can this be removed. Is it really needed. Tried to pull it out but it's stuck. HELP
You can remove the pin, it's obviously difficult. It is just there to align the angled adapter that block had originally. I think the hole doesn't go anywhere so it wont cause any flow problems if you remove it.
Pin is installed correctly for the 90 degree adapter, I wouldn't run one that's for sure. I think the filter mounts pointing downward on a Cherokee and that pin keeps the adapter from spinning.