Hello all,

I recently purchased a 1973 220D. The car does not currently run. It will crank, but has a lot of blowby. From what I can figure, the car hasn't been on the road since at least 2000 so it will need some work. Someone has tried working on it previously and got just far enough to mess me up.

Anyway, I have a few different questions.
A: how do I properly change the oil in the injection pump?
B: how many fuel lines go to the pump?

There is one line going from the fuel bowl to the pump, but it looks like there are at least two other fuel lines. From what it looks like, there is a spot for a rubber line and a line to thread on right next to the priming plunger. Where are those two lines supposed to lead?

Thanks in advance for any help, I know basically nothing about these cars other than what some quick google searches have turned up!