peugeot partner combi ?

I Have bought a peugeot partner combi van with a blown engine. I have bought another engine and transfered all the bits and bobs over to the engine that i have bought. could someone explain where the hole is to lock th fly wheel ( is there a 8 mm hole in the crankcase or is it the elongated hole you use at the side of the starter motor as i cannot find anything on my engine that is self explanotary any help offered would be greatly appreciated