Have you dunked it in water?
the first time was on our honey moon i stripped it down and rebuilt it in a council car park in st ives cornwall only parrts were chain seals and gaskets it had twenty minuets warm up then drove it home to the midlandsat the time the engine had 37000 miles on it but a fortnight before the honeymoon the jeep a two door chief had been resting in a hedge for 7 years