This thing was suuuuper stuck on. i must of swagged the ID of the cap in pounding it out with a drift as i can no longer get the pin all the way though. it took a lot of force so I'm not surprised. the swagged area only accounts for about 15% of the journal surface so perhaps i should just turn a relieve into it and that would work?
I also dont understand the O-ring at the bottom of the cap? what a terrible design, or maybe thats just the o ring i got off ebay. it fits on that shelf terribly. it just pushes off the shelf when i put the cap in. would i be crazy to just use a thin trim of RT?
what was inside was pretty terrifying. 65 hawk with a 67 motor (maybe mix n match parts), history unknown. Id have to guess this slinger wasn't changed for thousands of miles of use. :(

Kind Regards,
Steve from CT