Open diff. You'll need a gearset and some new bearings throughout. Your magnet has all kinds of swarf stuck to it. Gearsets are one unit. Not mix and match.
To the original poster, that's a tall order for a IDI diesel anything with a minus 50 temp. Go old school with a pan of charcoal under the oil pan and wrap the engine. Maybe. Cranking RPM is your friend. Hook a welder/genset to it?
I chose to delete the CDR in favor of a modified road draft catch can. Link below. Post #15. It's an option. A little fab required.
https://www.thetruckstop.us/forum/threads/cdr-routing-options.40117/#post-456065
Starter bolts have a 'knurling' where they pass through the aluminum starter. Often a cylinder block will strip out. A garage fix here in the U.S. is to run a threading tap into the block. The closest size is a 7/16-14 tap-bolt. It will follow the stripped hole perfectly. Sometimes the starter...
Agreed. Diesel fuel now is a blend of all the 'above' at best. Never know what you'll get.
Centrifugal separation like the WVO method? (To get a purer petroleum product...?) After all this stuff at the gas stations is stored out of sight, out of mind.
The best we can do is control the water.