I believe that the O-ring that goes in between the block and the oil cooler is dried out and it needs replaced. How do i go about removing the oil cooler to replace this $2 o-ring. Whenever i get over 1/2 throttle oil is dripping down onto my hot ehxaust thus cauasing alot of smoke and its embarassing! I want to fix this asap.
Its #19 in this pic:

 

I'v never takin one off, but I would think you would have to take number 12 off and it should just come off.