I have a B80 that I acquired from a PO that had the PTO rod shortened and rewelded and the spring removed from the brake pad bracket. I replaced the rod with a non welded adjustable, and reworked the muffler with a 45 so then new rod would fit in. After researching manuals and forum i can only determine that i need to have a 1/8 or less gap between the clutch plate and the bell housing. I can adjust the trunnion all the way in and it seems that some pressure is applied to disk and going all the way out a less is applied. However all pictures i have seen most everyone has the trunnion at least half way up the rod and state that you engage the pto rod with a lot of force, that is not my case at all. Is the stub with the bell housing the problem, it looks like there is plenty of disk plate left.