多久換一次火花塞
不(bu)同類型的(de)火(huo)花塞(sai)(sai)壽(shou)(shou)命(ming)差(cha)距(ju)較大。國產單(dan)極(ji)(ji)火(huo)花塞(sai)(sai)的(de)工(gong)(gong)作壽(shou)(shou)命(ming)為(wei)1-1.2萬(wan)(wan)公(gong)(gong)(gong)里,進(jin)口(kou)三(san)極(ji)(ji)火(huo)花塞(sai)(sai)工(gong)(gong)作壽(shou)(shou)命(ming)為(wei)2-3萬(wan)(wan)公(gong)(gong)(gong)里,進(jin)口(kou)銥(yi)(yi)金(jin)火(huo)花塞(sai)(sai)工(gong)(gong)作壽(shou)(shou)命(ming)為(wei)3-4萬(wan)(wan)公(gong)(gong)(gong)里,進(jin)口(kou)鉑(bo)金(jin)火(huo)花塞(sai)(sai)工(gong)(gong)作壽(shou)(shou)命(ming)為(wei)3-5萬(wan)(wan)公(gong)(gong)(gong)里,進(jin)口(kou)銥(yi)(yi)鉑(bo)金(jin)火(huo)花塞(sai)(sai)(正電極(ji)(ji)銥(yi)(yi)金(jin),側電極(ji)(ji)鉑(bo)金(jin))工(gong)(gong)作壽(shou)(shou)命(ming)可(ke)達到(dao)8萬(wan)(wan)公(gong)(gong)(gong)里,而最頂級的(de)雙銥(yi)(yi)金(jin)火(huo)花塞(sai)(sai)工(gong)(gong)作壽(shou)(shou)命(ming)則可(ke)達10萬(wan)(wan)公(gong)(gong)(gong)里以上(shang)。
怎樣判斷火花塞該換了
拆下火花塞(sai)(sai)觀察,根(gen)據(ju)以下的外觀顏色觀察判斷火花塞(sai)(sai)的使(shi)用(yong)狀況:
如果是赤褐色或鐵銹色,表明火花塞正常;如果是漬油狀,表明(ming)火花塞間隙失調或供油過多,高壓線短路(lu)或斷路(lu);如(ru)果是(shi)煙熏過的(de)黑色,表(biao)明火花塞冷熱型(xing)選錯或(huo)混(hun)合氣濃(nong),機油(you)上竄;如(ru)果在頂(ding)端處與(yu)(yu)電極間有沉(chen)(chen)積(ji)(ji)(ji)物,沉(chen)(chen)積(ji)(ji)(ji)物是油性物時,證明氣缸竄機油,與(yu)(yu)火(huo)花(hua)塞無關(guan);如(ru)果沉(chen)(chen)積(ji)(ji)(ji)物是黑色時則(ze)說(shuo)明火(huo)花(hua)塞積(ji)(ji)(ji)碳而旁路;沉(chen)(chen)積(ji)(ji)(ji)物為灰色則(ze)是因(yin)為汽油中添加(jia)劑覆蓋了電極而導致的缺火(huo);如果火花塞嚴(yan)重(zhong)燒(shao)蝕,頂端出現起疤、黑色(se)紋路、破裂、電極(ji)熔化等(deng)現象,這就表明火花塞已經損壞(huai),必須(xu)立即(ji)更換。
火花塞選購
在選擇火(huo)(huo)花塞時,必須保證舊火(huo)(huo)花塞與新火(huo)(huo)花塞的(de)尺寸(cun)(cun)一致。火(huo)(huo)花塞的(de)尺寸(cun)(cun)會印在裙部陶瓷絕緣體上(shang),只(zhi)要保證新老火(huo)(huo)花塞的(de)尺寸(cun)(cun)數字和字母一致即可。
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