Hello, I have a small leak from the inner clutch cover, so naturally I want to take it off and change the gasket, should be easy right? Well the screws are rusted stuck and I can not remove them. Using pliers is kind of hard on the inner clutch cover as there is not enough space. I have tried to use wd 40 and rest overnight and heat but I can not get enough leverage before the head gives up and the tool just spins. Anyone have any suggestions?