He aha te mahi a te tāke wai o te waka?
Ko te tāke wai o ngā waka, e mōhiotia ana ko te radiator, te wāhanga matua o te pūnaha whakamatao waka; He wāhanga nui te tāke wai o te miihini whakamatao-wai, he wāhanga nui hoki o te ara iahiko whakamatao miihini whakamatao-wai, ka taea te mimiti i te wera o te poraka rango.
Nā te nui o te kaha wera motuhake o te wai, kāore e nui te pikinga o te pāmahana i muri i te mimiti i te wera o te poraka rango, nō reira ka rere te wera o te miihini mā te wai whakamatao i tēnei ara wai, ka whakamahia te wai hei kawe wera, kātahi ka tukuna te wera mā te rohe nui o te totohu wera mā te ara o te whakamararatanga o te wera whakawhiti, kia mau tonu ai te pāmahana mahi tika o te miihini.