Ko tā mātou camshaft, te hanga me te whakahaere kounga, kei raro i ngā paerewa pakari hei whakarite i te mahi tino pai me te roa. He wāhanga nui te camshaft i roto i te miihini, e whakahaere ana i te whakatuwheratanga me te katinga o ngā takirere, e pā tika ana ki te pai o te miihini me te putanga mana. I roto i te tukanga hanga, ka tīpakohia ngā rauemi kounga teitei hei tu atu i ngā āhuatanga tino kino i roto i te miihini. Ka whakamahia ngā tikanga miihini matatau me te hangarau tika hei whakatutuki i ngā whakaritenga e hiahiatia ana, kia tino tutuki ai ia camshaft i ngā paerewa tino tika i whakatakotoria e te kaihanga.
He mea hanga tā mātou porowhita mai i te rino maka matao, e mōhiotia ana te rino maka matao mō tōna pakeke me tōna ātete ki te kakahu, he mea tino pai mō ngā āhuatanga uaua o te miihini mura o roto. Ehara i te mea ka roa ake te roa o te ora o te porowhita engari ka whakarite hoki i te mahi pumau i roto i te wā. Ko te maimoatanga mata o te porowhita ko te whakakanapa. Ka āwhina te whakakanapa ki te whakaiti i te taratara o te mata, ka hua ake he āhua whakaata. Ehara i te mea ka whakarei ake i te ataahua o te waahanga engari ka whakapai ake hoki i tana mahi. Ka whakaitihia e te mata maeneene te waku me te kakahu, ka pai ake te whai hua me te pono.
He mahi matatau, he tino whakahaeretia hoki tā mātou camshaft o te tukanga whakaputa, e whakarite ana kia tutuki i te wāhanga ngā paerewa mahi me te roa o te ora. He wāhanga nui te camshaft o te mīhini, e whakahaere ana i te whakatuwheratanga me te katinga o ngā takirere, ā, ka pā tēnei ki te pai o te mahi me te putanga mana o te mīhini. I roto i te tukanga whakaputa, ka mau tonu te piripono ki ngā whakaritenga hoahoa me ngā paerewa kounga kia pai ai te mahi a te camshaft i roto i te mīhini.
Ko te camshaft, he wāhanga nui o te pūnaha takirere o te mīhini, te kawenga mō te whakahaere i te whakatuwheratanga me te katinga o ngā takirere whakauru me te takirere whakaputa. Mā tēnei wā tika ka whakarite kia whiwhi te mīhini i te nui o te hau me te wahie e tika ana, me te tuku pai i ngā hua o te mura. Ko te pono me te roa o te camshaft ka whai wāhi ki te mahi whānui me te roa o te ora o te mīhini EA111, ka waiho hei whiringa pono i roto i te umanga motuka.