I have noticed a difference in recommended head torque for the Oliver 80.
A common internet reference on sites like AntiqueTractor.com states the head bolts on the Oliver 80 should be torqued to 54 pounds.  The generic Oliver Service Manual I have says the 80 head bolts should be torqued to 80-84 pounds.   That seems to be quite a difference: 54 or 84.   Does anyone know why these sources differ, or which is the sounder recommendation?[/b]