Do you have an inclined driveway and is your fuel tank higher then your Fuel Injection Pump and or extremely full?

I am not sure if you are having a terminology issue or you actually pulled the wrong thing. But, you are only supposed to pull the Delivery Valve Spring and the center valve of the Delivery Valve Assembly.

Good idea to disconnect the Vacuum Line from the Shutoff Valve on the Fuel Injection Pump and wire the Throttle in the proper position.

Note that zero timing chain stretch I suspicious as to the method used to check it. Even if the Timing Chain had been changed people usually don't change the crankshaft gear or the camshaft gear and both should have some wear on them that would show up as timing chain stretch.

When the Fuel Injection Pump timing is checked the crank has to be rotated in in the proper direction. When you end up on 24 degrees before top dead center on a used Engine I would not expect it to be set exactly any more due to the timing chain stretch and timing gear wear and even wear inside of the Fuel Injection Pump.

Also there is a plus or minus range that is allowable.

The get to the sweet spot where you get the desired drips might be found by rotating the Fuel Injection pump less the 1/32 of an inch. Just a tiny nudge.

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84 300D, 82 Volvo 244Gl Diesel