Nope. I have info on one I worked on.
I'll go dig it up.
Here = I had got fooled on a quick look and thought was a dang relabeled plastic mac. But looking up parts I caught on quick. Chris-pa got us all into the right water trough. http://chainsawrepair.createaforum.com/chainsaws-not-listed/mcculloch-3818/msg39917/#msg39917