Can anyone refer me to an honest diesel mechanic in the Vancouver, Washington area. I've got a 1986 f250 6.9 idi non turbo, thats developed a fuel leak. The leak is around the fuel injector...I think

. Don't know much about diesels. It was my grandfather's truck. It's got 45k original miles. From what I've read in posts, its probably the o-rings need replacing. Any idea on the cost to repair?