You guys post some good info for us noobs, I picked up a 78 SE and I'm still working all the bugs out of it. I've been fightin timing alot, I keep adjusting the cam tensioner with little results. So I took it out and noticed the end is all chewed up. Got a flashlight and a mirror, stuck it through the hole to see inside and all I see is cam chain. My guess is that the cam chain tensioner guide is missing or broken. I did get this from craigslist so anyones guess as to what was done to it before is as good as mine. Think I might crack open the top and see what I find or don't find.