A) Same. The early 60x with vertical injection were the same as the 617's. 115bar for N/A and 135bar for Turbo. Why do you think it needs injectors? Unless it has signs of needing them, leave well enough alone!

B) Exactly the same.

C) No. All 60x engines use hydraulic tappets. No adjustment needed.

D) Yes. Same as the 61x engines.

E) Check by VIN. If it's a stock system, it's probably the same as a W201 190D

__________________
Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)

Black Sheep:
1985 524TD 167K (TotalDumpster™)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)