Today I was trying to find the grease fitting for the throwout bearing in my 1945 Farmall B tractor, so I removed the inspection plate on the housing that surrounds the flywheel and clutch. When I pulled the cover I found a whole bunch of greasy messy almost fabric like material in the bottom of the housing. Is this meant to be there? Insulation? A dirt and grime trap or filter? Its pretty bad and I would think it should be scraped out but I dont know what the heck it is..... Any ideas? ?Also I couldnt see a zerc fitting to grease the throwout bearing.. any suggestions here?