1973 340 issues.

You can make an adapter to air up the cylinders by taking a spark plug breaking the porcelain out of it and tapping so that you can thread in a air hose fitting to hook the airline to.

Years ago we had a triple toilet paper oil filter setup on a diesel tractor it kept the oil as clean as new however those old rolls of toilet paper were wound different than the new are. so it kind of got outdated by the evolution of the toilet paper rolls.