2007 R56 Oil Pump Chain
 

I have a 2007 r56 .... I opened up the oil pan and the oil pump chain was broken...
After cleaning stuff up and ordering a new change... I am in a bit of a quandary.
The chain provided has not master link and the oil pump gear on crank shaft has no
apparent way to get the chain around the sprocket.
Does anyone know if the chain can be replaced from just exposing the oil pan?