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Show MECHANICAL CHANGES IN THE NEW PACKARD. Above is shown tho first of the new Packard "Twin Sixes." Probably the most noteworthy change from tho mechanical point of view is the unique water circulation system. In place of the water being expelled from the forward for-ward ends of the cylinder blocks, as is customary with V type motors, the gas Intake manifold has been cored out to permimil water from tho cylinder jackets to be circulated through this manifold and thence to the radiator through a single tube at the centre. This arrangement not only eliminates considerable tubing but causes the water to surround sur-round the gas intake header while at the highest temperature and greatly assists in the vaporization of the gasolene. |