i know i can undo the pully bolt but how am i going to get it done up again as its an auto can anyone post pics of a homemade tool for this or any other idears would be welcome.
There some M8 bolt holes on the pulley. You make a Y shaped tool out of 2 suitable flat metal bars. It's mentioned in the Haynes manual. You should use it to undo the pulley bolt too.
