Ese igipfundikizo cy'ingufu cyaracitse
Muri rusange hari impamvu nyinshi zitera kwangirika kwa gasket y'umupfundikizo wa valve. Iya mbere ni uko bolt ifunguye, iya kabiri ni ukuguruka kwa moteri, iya gatatu ni ukugwa k'umupfundikizo wa valve, naho iya kane ni uko gasket y'umupfundikizo wa valve yangiritse cyangwa idapfutswe n'umupfundikizo.
Mu gihe moteri ikora iterabwoba, gazi nke izagera kuri crankcase hagati y'urukuta rwa silinda n'impeta ya piston, kandi umuvuduko wa crankcase uzazamuka uko igihe kigenda. Muri iki gihe, valve yo guhumeka ya crankcase ikoreshwa mu kuyobora iki gice cya gazi muri intramanifold hanyuma ikayishyira mu cyumba cyo gutwika kugira ngo yongere gukoreshwa. Iyo valve yo guhumeka ya crankcase ifunze, cyangwa umwanya uri hagati ya crankcase n'urukuta rwa silinda ari munini cyane, bigatuma umwuka ujya mu kirere ukabije kandi umuvuduko mwinshi wa crankcase, gazi izasohoka ahantu hadafunze neza, nko muri gasket yo gupfuka valve, crankshaft imbere n'inyuma, bigatuma amavuta ya moteri ava.
Igihe cyose ushyizeho agafunga, ugafunga amaboliti, kandi agapfundikizo ka valve kadacitse cyangwa ngo kagire ikibazo, bigaragaza ko agapfundikizo ka valve ari keza. Niba utishimye, ushobora gukoresha ruler n'agapimizo k'ubunini (feeler gauge) kugira ngo upime ubugari bw'agapfundikizo ka valve kugira ngo urebe niba katacitse.
