Well seems that way. So, my Deere 420 drops a cylinder. I go to grab my backup mower. I fire up the 16 and proceed to mount the deck to handle mowing till I sort my primary out. For some reason or another I can't get the belt to tighten enough. Seems like belt is too long even though it's what agco calls for. I've been over the deck mounting to no success. Tensioner moves great but seems to bottom out before tightening the belt. Anyone have a pic or some assistance here? Maybe a pulley is too small. I don't know.