ok like the title says are they an easy rebuild? I could do it with some time and effort but i want to make sure its going to be something that is commonly done and resolves leaks and the good ol annoying whine.mine is leaking and whining horribly!!! and it got worse after removing it to slide one of my headers in for install. and i dont want to spend 50.00 on one when i need so much other stuff. please dont say buy a new one with no regards to my question, cause this one works and if i can get some more use out of it why not im just trying to save money not be cheap, so if its a stupid idea just say so,lol.