Pandion wrote:
crosshatch pattern是引擎室內的油路，如果被磨平，就等著縮缸了。
原文作者卻以為這是拿來磨活塞環...
終於有人站出來說話了
謝謝您P大 
不是外國的和尚就都會經!!!網路爬文還是要先過濾一下才跟大家分享!!!crosshatch pattern存在的理由沒搞清楚,就開課教人如何馴車
網路有時真會害死人.........一顆工作良好的引擎, 缸體一定要是有交差細紋的, 引擎機油才會有效的,平均的散布在缸壁.提供良好的潤滑: 如下圖
既然要請外國和尚念, 下面幾篇就是針對P大說的crosshatch pattern有關的簡短說明
actually the cross hatch is very important. The angle of the cross hatch determins how much oil is retained on the cylinder wall. Too horizontal an angle and the rings could never seat, always floating over an oil film; too stepe an angle and the oil all drains off and the rings and cylinder wall erode away quickly.
At 800 miles you have one of two problems, the machine shop that did the engine honeing used too fine a stone and "polished" the cylinders, or you have repeatedly fuel washed the cylinders and have simply worn it all away. You hear tail of how engines are torn down after 300,000 miles and there is still cross hatching in the bore. Ford hones the cylinders with a pretty aggressive stone, leaving some of the deepest cross hatch cuts in the industry. Your standard Chevy assembly mill is likly to polish the cylinder with a real fine stone, and remove your oil retention capability.
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原文摘錄於以下連結!
http://forums.corral.net/forums/5-0-5-8-engine-tech/21736-how-important-cross-hatch-cylinder-walls.html
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再補一篇
I had an engine with 125k miles and it looked almost brand new when it was torn down.The oil was changed every 3,000 miles(dino oil) and was tuned up and service regularly.Having the cross hatch still showing was great..thats a sign the engine was treated properly and not wearing down t a faster rate.
原文摘錄於以下連結!
http://forums.corvetteforum.com/c4-tech-performance/136667-100k-miles-and-cylinder-walls-still-have-a-cross-hatch-hone-pattern-this-normal.html
簡單一句話; 只要聽說或見到添加強@#$%神油可以"補缸" ??!!讓引擎缸壁光滑,重振雄風??!! 等類似字眼,以後就直接跳過,因為他不之所云........
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