[問題] 老勁戰缸頭受損
看板biker (機車 摩托車)作者DarrenAge (DeVotiOn We Keep)時間12年前 (2013/09/23 23:40)推噓4(4推 0噓 70→)留言74則, 6人參與討論串1/1
車況:化油勁戰 58.5缸+TTMRC T8凸輪 PWK28化 (58.5行駛里程1萬初頭)
最近車子冷車難發,發起來需補油門才能維持怠速。
腳踏踩發桿明顯無缸壓,檢查小鳥發現進氣門有一支無間隙
調整至0.13後缸壓恢復正常。
但約一週,再度沒有間隙,反覆忍受近一個月後
於今日下引擎檢視,發現缸頭疑似裂開 (如圖左側汽門靠近火星塞處)
且無間隙那支進氣門似乎有點下沉 (如圖右下)
圖:http://ppt.cc/Rkmt
補圖:http://ppt.cc/QHtx
想請問,以照片所現之燃燒狀況為何?
而間隙反覆被吃掉的原因是?
另外是否應該進一步確認汽缸情況?
還請各位前輩不吝解答,謝謝。
今日拆解汽門及凸輪之情形如下
兩支進汽門:http://ppt.cc/EiLB
凸輪軸:http://ppt.cc/vlTq
汽門搖臂:http://ppt.cc/Mt4s
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