This is a "64 motor, so it uses a rear seal retainer that takes a normal type neoprene seal. That brings up a minor problem encountered. The retainer takes two vertical side seals in addition to the semicircular neoprene seal. They are supposed to be dipped in oil and then slid down into the slots with the retainer in place. I ruined the first set of side seals. Dipped them in oil for a minute and then tried inserting and no way. So another set is due in this week. May try one of two ideas. Dip in oil and immediately slide in, or coat with silicone and no oil, then insert.
Tech's breakaway torque is similar to what I found on the assembled motor. The cam bolt calls for 40 ft lbs and the assembly would turn if you didnt hold the crank snout.