Changed water pump and timing belt in my '96 Legacy Outback 2.5L - now idling a bit rough. My Chilton's manual stated to position #1 piston TDC at the start of the process. I did not do this assuming that when I aligned the camshaft and crankshaft sprocket notches with the rear cover notches the #1 piston TDC location would match. Vehicle idling just fine before I did the work. Did I make a bad decision here? Or am I just off a notch on the belt alignment? If I'm off a notch my best guess is the tensioner (driver side) camshaft sprocket. Any thoughts/comments here are appreciated.
Thanks in advance.