1979 Mercruiser I/O Lower Unit Takedown

[imaginethat]

My stepfather recently purchased a 1979 Grady White with this motor (the motor also has the number 470 on it). We don't have any manuals for it. My stepfather would like to know the HP of it, but his big problem is the Lower Unit Takedown. He'd like a diagram of it as he can only find one of the two drain plugs. If anyone can help out we'd really appreciate it. The only things I can find online we'd have to purchase. You can email if you'd prefer...Thanks in advance!!!!

[codyandamber]

I have a 79 stern drive. Try http://mercstuff.com/fiched.htm It is not an alpha or bravo if it is this old. If you need other diagrams this is a pretty good site. Just go to their homepage. I hope this helps with part of your problem...