Iphedi yesilinda, eyaziwa nangokuthi i-cylinder liner, itholakala phakathi kwekhanda le-cylinder kanye ne-cylinder block. Umsebenzi wawo ukugcwalisa ama-pores amancane phakathi kwekhanda le-cylinder kanye nekhanda le-cylinder, ukuqinisekisa ukuvaleka okuhle endaweni ehlangene, bese uqinisekisa ukuvalwa kwegumbi elivuthayo, ukuvimbela ukuvuza komoya kanye nokuvuza kwamanzi kwejacket yamanzi. Ngokusho kwezinto ezahlukene, ama-cylinder gaskets angahlukaniswa abe yinsimbi - i-asbestos gaskets, insimbi - i-gaskets eyinhlanganisela nawo wonke ama-gaskets ensimbi. I-cylinder pad iwuphawu phakathi kwengaphezulu lomzimba kanye nangaphansi kwekhanda le-cylinder. Indima yayo ukugcina isivalo se-cylinder singavuzi, gcina isipholile futhi uwoyela ugeleza usuka emzimbeni uye ekhanda le-cylinder ungavuzi. Iphedi yesilinda ithwala ingcindezi ebangelwa ukuqiniswa kwebhawodi yekhanda le-cylinder, futhi ingaphansi kwezinga lokushisa eliphezulu kanye nokucindezela okukhulu kwegesi evuthayo kusilinda, kanye nokugqwala kwamafutha kanye nesipholile.
I-gaspad izoba namandla anele futhi imelane nenjabulo, ukushisa nokugqwala. Ngaphezu kwalokho, inani elithile lokunwebeka liyadingeka ukuze kunxeshezelwe ubulukhuni nokungalingani kwendawo engaphezulu yomzimba kanye nephansi lekhanda le-cylinder, kanye nokuguqulwa kwekhanda le-cylinder lapho injini isebenza.
