You should be able to install the pump at 24 degrees BTDC (cam marks coming into alignment, lobs point upwards). If you dont have the electronic RIV tool and assuming you have the drip tube set up correctly, put a piece of hose on it and the other end into a cup of water. Disconnect the bango fitting on the inboard side of the IP (return fuel) and remove the small ball and spring (check valve). The idea is to blow gently through the IP (I have a banjo fitting with hose attached just for this operation). Rotate the engine slowly while blowing through the hose, and the bubbles will stop when its on. Adjust IP accordingly. This method is very accurate and straight forward epically if you can have a banjo fitting with hose attached on hand. Dont forget to UNattach the vacuum line on the IP too. 
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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug
"Lifes too short to drive a boring car"
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