Engine oil is blowing back all the way to the air filter and it's leaking about 1/3 qt. a week out of the front seal. Time for a rebuild? Where can I get a kit? If I can't find a kit I'm going to need a parts list to make sure I don't forget anything. I admit I really don't know what I'm doing. I have a friend with a garage who's going to help me (or I'm going to help him, more like...) but first I need to get everything ready. Is there a book I should buy or a web site I can go to?