Hi everyone, new to the forum. Got a question about my S90. So I recently changed the timing belt and water pump and am in the process of putting the engine in time. To my understanding, I have to line up the crank and the camshaft sprockets but the question I have is this; in what position should the pistons be? Thanks for any help
(btw, accidentally posted twice in case anyones already seen this thread!)

 

no problem, I deleted the duplicate thread. Typically when the crank pulley is at its timing mark, the #1 piston is at TDC