I have a 1948 Styled D that I've been working on off and on for about three years. I had a cracked block/head/lower rad tank when I bought it. I had a different block magnafluxed for cracks and sleeved for some .045 over pistons that came with the tractor, a different head completely rebuilt with new valves, guides, seats, etc. reassembled about two years ago. I got busy and it has mostly sat except for a few hours here and there putting things back on when I had time. Yesterday, I filled it with coolant as I am nearly ready to try and start it. The problem is that while I was down adjusting the valves, I noticed that there was coolant dripping from the head nuts. So, I did not use any lead washers as my gasket kit did not include any. I realize that there is controversy surrounding the purpose of these lead washers ie. sealing vs. protecting the head surface. I ordered enough washers for each head stud and I am going to try installing them to see if the leak goes away. My question is can I add the washers one at a time in the torque sequence or do I have to put a new head gasket on and do it from scratch?