no its a bolt for the actual water pump.
if you look at this pic, https://static.am-autoparts.com/item/601392d01a.jpg
, the bolt i'm trying to remove is the very right one, on the outlet portion there.
but its being blocked by a pulley on the engine, down and to the left of the tensioner, down and to the left of the waterpump pulley, and up and to the left of the crankshaft pulley...if that makes sense.
the bolt needs to come out a long way, but its only got about 1/2 inch of clearance. I noticed in your write up that you had taken off a piece behind the waterpump, is that necessary to take the actual waterpump off?