Wow thanks for all of the help guys. And finally, a picture of a kidney shaped pump. I'm new to this so it's taking me a while to learn some of the information. The diagram, Kid, is bang on. I have removed the bolts that seem to be holding the pump in place but it won't budge. Typically I'd use some brute force, but I don't want to cause more problems. I've read up on Shona's thread and I think I'll just have to massage the pump a bit. I have the cover off, and the 4 interior bolts but nothing. I'll keep working on it.. Thanks again