Thanks to everyone on the valuable information. I have two of these engines. I am tearing down the 39. I also have a 40. It is still in the truck but I hear after seeing rust out in the side panel and oil pan it is most likely done for. The 39 spins fine but has issues. I am going to pull the 40 out once I get to the farm and see just how bad that one is. My preference is to use the 40 but will use which ever is usable.
Harmon
Last edited by Harmon Hodge; 09/27/2017 1:32 PM.