Had to rebuild my D4 after the exhaust valve broke and beat up the piston on the second cylinder and the head was worn out must have been overhauled in 65 because the valve springs on the old head were small ansd the head was stamped with a 1965 and the 1955 was lined out so it must bee the third time this machine was overhauled
picture # 17. one should never leave his favorite tasty beverage where it may spill into a cylinder and become cross contaminated and undrinkable with a straw. other than that i see a reall good job well done and thanks for the pics.:jaw: