Kua whakatūria e mātou he pūnaha whakahaere kounga whānui hei whakarite i te kounga teitei o ā mātou camshaft. Ka tirotirohia ia camshaft i ia wāhanga o te tukanga whakaputa. Ka whakamahia ngā taputapu ine matatau hei tirotiro i ngā rahi, te porowhita, me te porotaka o ngā pukapuka me ngā cam, kia mōhio ai kei te tutuki i ngā whakaritenga hoahoa.
E u ana tō mātou whakaaro ka tutuki i ā mātou hua ō tumanakohanga, ā, ka hipa atu hoki i tēnā, ā, ka whakaratohia he mahi pono, he mahi whai hua hoki mō ō miihini.
He mea hanga ā mātou porowhita mai i te rino kounga teitei, he kaha, he pakari hoki, e āhei ai te porowhita ki te tu atu i te ahotea nui me te pānga hurihuri i te wā e mahi ana te miihini. Mā tēnei ka whakarite i te pono me te roa o te porowhita, ka whakaiti i te mōrearea o te whakarerekētanga me te whati, ā, ka roa ake te ora o te mahi. Ka tukuna ā mātou porowhita ki te maimoatanga mata tinei auau-teitei, e whakarei ake ana i tā rātou mahi. Ka taea e te tinei auau-teitei te whakamahana tere i te mata o te porowhita ki te pāmahana teitei, kātahi ka whakamatao wawe, ka hanga he paparanga pakari ki runga i te mata. He tino pakari, he ātete hoki tēnei paparanga pakari ki te kakahu, e whakapai ake ana i te kaha o te porowhita ki te ātete i te kakahu me te pakū.
Mai i te tirotiro rauemi tuatahi ki ngā tirotiro ā-rahi whakamutunga, ka whakamatautauria ia camshaft ki ngā whakamātautau maha. Ka whakamahia e mātou ngā taputapu matatau hei ine i ngā tawhā matua, kia tutuki ai ngā paerewa ā-roto me ngā whakaritenga tino tika o ngā miihini. Ka piri tā mātou whare whakaputa ki ngā paerewa hanga o te ao, ā, ka whakahoutia tonutia ki ngā hangarau hou. Mō te camshaft, ka whai mātou ki te tuku i tētahi hua e whakakotahi ana i te pono, te mahi, me te roa o te ora, e tutuki ai ngā hiahia o te umanga motuka o ēnei rā, me te whakarato i tētahi wāhanga e taea e ngā kaihanga miihini te whakawhirinaki.
He mea nui te camshaft ki te mahi a te miihini nā te mea e whakahaere tika ana i te whakatuwheratanga me te katinga o ngā takirere miihini. Mā tēnei tukutahitanga ka whakarite kia pai te urunga o te ranunga hau-wahie me te pana hau putanga, ka whai wāhi tika ki te putanga mana o te miihini, te whai huatanga o te wahie, me te oma maeneene. Heoi anō, ko te hanganga pakari o te camshaft me ngā mata kua whakamahanahia e tuku ana i te ātete pai ki te kakahu me te ngenge, ahakoa i raro i ngā āhuatanga mahi tino kino. Ko te tikanga o tēnei ka whakaitihia ngā whakaritenga tiaki me te roa o te ora ratonga mō te miihini.