I've got the timing cover off my 109. I tipped the timing over upside down and pulled the four visible bolts on the outside bottom of the oil filter adapter cover. I can not for the life of me figure out where the other bolts are!! I'm trying to completely disassemble the timing cover, and get into the oil filter adapter area, and make sure there is no bearing material inside. If someone could please help out, I would appreciate it. Photos would be even better. Sorry, this is my first 109 tear down, and I'm not familiar with these motors AT ALL. Thanks again!