IP timed to TDC rather than 24 degrees?

[240dddd]

I'm trying to drip time the IP on my 1984 300TD. This is my first time trying this procedure and I'm seeing some weird results that I'm hoping someone can help me decipher.

Before embarking on the timing I checked my chain stretch using the 2mm lift method. Both that method and cam mark method showed about 3 degrees of stretch (I did not check to see if the PO installed a woodruff key).

When drip timing with the timing mark at 24 degrees the fuel just pours out of the fitting and no amount of rotating the IP changes that. The only spot where the fuel begins to visibly drip is when I am near TDC, i.e. when the cam marks are lined up and the timing mark is close to 0. Even at that point the drip is faster than 1/sec and rotating the IP doesn't seem to have an affect.

Does this make any sense? Is it possible a PO mistakenly timed the IP to TDC instead of 24 degrees. What else could be going on here? Or what could I doing incorrectly that would show these results?

I should add that the car is relatively new to me and the PO I bought it from said that her ex-boyfriend had replaced the engine a few years back. That said, the engine was running decently, started and idled well and ran at freeway speeds fine. It did seem to lack low end power more than other OM617's I've driven, but once the turbo spooled it seemed normal. the compression on the engine was decent too, at about 390 across the board.