I picked up an 87 wagon around this time last year, and it had a damaged rear crossmember, leading to being parked in the field for a little while.

Over the last few months I was able to source a new crossmember from dbenz, here on the forum, and patched everything back together.

Today was the first start in a year, and the car is puffing out some consistent white smoke, as well as a clunking lope (lifters?). I figure the motor would appreciate a few cans of diesel purge, and a new set of lifters, but don't want to run the motor too long, as it is showing zero oil pressure.

Is this likely just an electronic issue? Before parking the car last year, I recall it reading consistently 2.5 bar, and around 1.75 at idle.

Link to my original thread, with the damage