Hiki ke hoʻokaʻawale ʻia nā pauma wahie 320-2512 i ʻekolu mau ʻano: plunger fuel injection pump, wahie injection pump-injector a me rotor distribution fuel injection pump. Ma waena o lākou, ʻo ka plunger fuel injection pump ka lōʻihi o ka mōʻaukala a ʻo ia ka mea i hoʻohana nui ʻia me ka hilinaʻi kiʻekiʻe;