So I'm eliminating the adapter - from what I understand I will be removing the threaded filter retainer (circled in "sublime" below and this will thread through plate and into block - correct ? I gave it a shot this weekend (!" socket) and couldn't budge it, but wasn't "serious" at the attempt. I had someone tell me that I would not be using this part, but would need to find the correct piece off another motor with the plate mount ?