A.氣閥間隙過(guò)小會(huì)導(dǎo)致氣閥關(guān)閉不嚴(yán) B.氣閥間隙過(guò)大會(huì)產(chǎn)生明顯敲擊聲 C.氣閥定時(shí)的檢查就在氣閥間隙調(diào)整工作前進(jìn)行 D.調(diào)整氣閥間隙時(shí),頂桿應(yīng)落位在凸輪的基圓上
A.2280 B.1380 C.1140 D.1320