Take off the manifold cover and remove the broken piece(s)
The nurled plug Jack suggested is definitely an improvement. Turn by hand… I still end up with diesel fuel on my shirt during filter changes.Thanks for the help. I took the manifold off and the lower chamber had a brown rusty sludge at the bottom. There were no solid fragments. Seems the the drain plug just corroded away.
If only there was a write up on the relocation of the hfcm (aka the diesel shower head).I've probably had that milk carton in use for 15 years. It shields your holding hand from splash, although it's been that long since I've moved my HFCM to behind the transfer case, and my memory is a little fuzzy on the application with a driveshaft next to it.
I would start with the blue spring upgrade 1st before jumping into the HFCM cleaning/replacement.Will get the hand turn drain. Got the fuel pressure monitor installed and fuel pressure is 45 to 50. Gonna pull the hcfm to fully clean and likely install a new fuel pump.