There's been oil in the spark plug wells since I got this...treasure. I've tighten down the cover and it has slowed down the oil leak. But being a perfectionist I decided it's time to change the gasket at 138K. There's a little problem. The hoses don't really want to come off after I back the spring clamps off. I yank the PCV hose forward but I can feel the parking brake coming loose. There's also another hose on the driver side that seems to be stuck to the cover as well. I don't think these hoses have ever come off the cover (the spring clamps are rusted and they are imprinted on the hose) and don't want to tear them if they are dry rotted to the metal. Is this a common problem? Or is there a simple trick to get these hoses off for a dedicated DIY?