標題: [動力] 利用真空值判斷Focus的引擎狀況 [列印本頁]
作者:
shin 時間: 2006-8-15 10:36 AM 標題: 利用真空值判斷Focus的引擎狀況
我從手冊抓了一段有關真空值的真空測試,可以用真空值得知目前的引擎狀況
晚點有空會翻成中文,先看一下
可能翻的不是很好.....歡迎指正
1.NORMAL READING: Needle between 51-74 kPa (15-22 in-Hg) and holding steady.
正常讀數: 指針穩定在 38.1 ~ 55.88cm-Hg
2.NORMAL READING DURING RAPID ACCELERATION AND DECELERATION: When the engine is rapidly accelerated (dotted needle), the needle will drop to a low reading (not to zero). When the throttle is suddenly released, the needle will snap back up to a higher than normal figure.
極加減速的正常讀數: 當引擎急加速 ,指針會有低數值(不是0),當油門突然放開時,指針會回到比正常值還高一點.
3.NORMAL FOR HIGH-LIFT CAMSHAFT WITH LARGE OVERLAP: The needle will register as low as 51 kPa (15 in-Hg) but will be relatively steady. Some oscillation is normal.
有大重疊且高揚程凸輪軸的正常值: 指針可能低到 38.1 cm-Hg,但有相對比例的規律. 有些震動是正常的.
4.WORN RINGS OR DILUTED OIL: When the engine is accelerated (dotted needle), the needle drops to 0 kPa (0 in-Hg). Upon deceleration, the needle runs slightly above 74 kPa (22 in-Hg).
墊圈磨損或機油變稀: 當引擎加速時,指針掉到0;回油後,指針略高於55.88cm-Hg
5.STICKING VALVES: When the needle (dotted) remains steady at a normal vacuum but occasionally flicks (sharp, fast movement) down and back about 13 kPa (4 in-Hg), one or more valves may be sticking.
氣門積碳 :當指針穩定在正常指數,但是有時候會突然晃動或上下到10.16cm-Hg左右,有可能1或多個氣門積碳.
6.BURNED OR WARPED VALVES: A regular, evenly-spaced, downscale flicking of the needle indicates one or more burned or warped valves. Insufficient valve clearance will also cause this reaction.
7.POOR VALVE SEATING: A small but regular downscale flicking can mean one or more valves are not seating.
8.WORN VALVE GUIDES: When the needle oscillates over about a 13 kPa (4 in-Hg) range at idle speed, the valve guides could be worn. As engine speed increases, the needle will become steady if guides are responsible.
9.WEAK VALVE SPRINGS: When the needle oscillation becomes more violent as engine rpm is increased, weak valve springs are indicated. The reading at idle could be relatively steady.
10.LATE VALVE TIMING: A steady but low reading could be caused by late valve timing.
11.IGNITION TIMING RETARDING: Retarded ignition timing will produce a steady but somewhat low reading.
12.INSUFFICIENT SPARK PLUG GAP: When spark plugs are gapped too close, a regular, small pulsation of the needle can occur.
13.INTAKE LEAK: A low, steady reading can be caused by an intake manifold or throttle body gasket leak.
14.BLOWN HEAD GASKET: A regular drop of fair magnitude can be caused by a blown head gasket or warped cylinder head-to-cylinder block surface.
15.RESTRICTED EXHAUST SYSTEM: When the engine is first started and is idled, the reading may be normal, but as the engine rpm is increased, the back pressure caused by a clogged muffler, kinked tailpipe or other concerns will cause the needle to slowly drop to 0 kPa (0 in-Hg). The needle then may slowly rise. Excessive exhaust clogging will cause the needle to drop to a low point even if the engine is only idling.
When vacuum leaks are indicated, search out and correct the cause. Excess air leaking into the system will upset the fuel mixture and cause concerns such as rough idle, missing on acceleration or burned valves. If the leak exists in an accessory unit such as the power brake booster, the unit will not function correctly. Always fix vacuum leaks.
作者:
唉唷哇操 時間: 2006-8-15 10:37 AM
老師沒教那麼多英文～～～
作者:
悍克 時間: 2006-8-15 11:39 AM
Originally posted by 唉唷哇操 at 2006-8-15 10:37:
老師沒教那麼多英文～～～
翻譯軟體
查一查
就好了
作者:
katter 時間: 2006-8-15 01:10 PM
請問查出來了嗎？^.^
作者:
MiG29 時間: 2006-8-15 03:00 PM
有看沒有懂...@@"
作者:
sonrei 時間: 2006-8-15 07:33 PM
你單位還有轉換喔
我單位轉換都忘差不多
要利用轉換軟體了
真的老了哈哈
作者:
phil 時間: 2006-8-15 08:47 PM
真空表可是很有用的只是大家不常使用及正確的使用罷了!,表示引擎有問題
可以用來觀察引擎的狀況,如果怠速時真空不穩
1.正常時指針穩定指在45~50cm Hg之間
2.節氣門忽然開啟而又關閉時,指針跌落至5cm Hg間或升至60cm Hg間,表示*活塞環及汽門正常
3.指針指在較低位置(約40cm Hg)表示*活塞環不佳或機油不良
4.指針有規律的跌落5~10cm Hg,表示*汽門燒壞
5.指針指在20~40cm Hg之間,表示*汽門正時不良
6.指針會跌落5cm Hg,表示*汽門座不密
7.約在35~50cm Hg之間急速擺動時,表示*汽門磨損
8.穩定的在35~40cm Hg之間移動,表示*化油器調整不良*現在已經少有化油器得車了
9.指針在15cm Hg以下,表示*化油器墊子漏氣或進器歧管漏氣
1CM HG=10mm HG
作者:
良妹 時間: 2006-8-15 08:49 PM
很深奧～
作者:
vanish67 時間: 2006-8-27 05:00 PM
那...有沒有自排入檔時真空值的對應數據呢？
以我的經驗是空檔在16-17in-hg之間
一入檔就大概在14in-hg了，如果在開個冷氣...well，那很容易變成0...因為熄火了
作者:
壞壞黑 時間: 2006-8-28 12:30 PM
真空直
要有真空記才能看ㄅ
作者:
shin 時間: 2006-8-28 03:25 PM
為啥你開冷氣會熄火啊?
我經驗上只掉2-3cm-Hg耶......
自排應該是一樣的理論值...Originally posted by vanish67 at 2006-8-27 05:00 PM:
那...有沒有自排入檔時真空值的對應數據呢？
以我的經驗是空檔在16-17in-hg之間
一入檔就大概在14in-hg了，如果在開個冷氣...well，那很容易變成0...因為熄火了
作者:
shin 時間: 2006-8-28 03:27 PM
真空表很好用!
可以真正看到引擎內部的狀況...
作者:
惡魔如月 時間: 2006-8-29 01:57 AM
Originally posted by shin at 2006-8-28 07:27 AM:
真空表很好用!
可以真正看到引擎內部的狀況...
真空表在那 =_=
作者:
jiaching 時間: 2006-8-29 11:57 AM
Originally posted by 惡魔如月 at 2006-8-28 05:57 PM:
真空表在那 =_=
應該是要自已裝,不過不知道裝在那,才是最佳位置?
作者:
shin 時間: 2006-8-29 12:12 PM
Originally posted by jiaching at 2006-8-29 11:57 AM:
應該是要自已裝,不過不知道裝在那,才是最佳位置?
等等照像給各位看...
focus在歧管的部份管子很多,也有二次進氣的管子
但是我試了一下,只有一個管子可以接真空表的sensor會是歧管的壓力
其他的管子作用都不相同...
作者:
map 時間: 2006-9-2 01:46 AM
Originally posted by
shin at 2006-8-29 12
PM:
等等照像給各位看...
focus在歧管的部份管子很多,也有二次進氣的管子
但是我試了一下,只有一個管子可以接真空表的sensor會是歧管的壓力
其他的管子作用都不相同...
大大阿~~~
你不是要PO圖嗎??
我很想知道要怎麼接耶
作者:
cckuok 時間: 2006-9-2 02:47 AM
Originally posted by map at 2006-9-2 01:46 AM:
大大阿~~~
你不是要PO圖嗎??
我很想知道要怎麼接耶
你要直接回給他才收的到
作者:
shin 時間: 2006-9-2 01:09 PM
sorry,sorry
最近都晚班,今天馬上照ㄡ
作者:
shin 時間: 2006-9-2 05:13 PM
真空表安裝就如圖所示,再接個3通出來既可
作者:
阿和 時間: 2006-9-2 06:47 PM
原來真空表要接那邊...謝謝大大的資訊。
作者:
relax 時間: 2006-9-13 10:53 PM
我想為我ㄉㄧ台K6問一下
引擎怠數真空數值在21~~22晃動是啥意思阿
是正常ㄉ嗎??
還是哪出問題??
那出問題ㄉ話又是啥原因阿~~??
作者:
shin 時間: 2006-9-13 11:37 PM
你的單位是啥?Originally posted by relax at 2006-9-13 10:53 PM:
我想為我ㄉㄧ台K6問一下
引擎怠數真空數值在21~~22晃動是啥意思阿
是正常ㄉ嗎??
還是哪出問題??
那出問題ㄉ話又是啥原因阿~~??
作者:
2bod 時間: 2006-9-14 10:29 AM
喔喔~~~下次改裝重點~~~裝真空表去
作者:
relax 時間: 2006-9-14 09:22 PM
Originally posted by shin at 2006-9-13 11:37 PM:
你的單位是啥?
不好意思~~單位是inHg
那是啥原因呢??
那為何會這樣~~
作者:
shin 時間: 2006-9-14 09:29 PM
機油號數用多少?Originally posted by relax at 2006-9-14 09:22 PM:
不好意思~~單位是inHg
那是啥原因呢??
那為何會這樣~~
作者:
relax 時間: 2006-9-15 09:07 AM
Originally posted by shin at 2006-9-14 09:29 PM:
機油號數用多少?
之前用5W50現在用5W40
我用5W50ㄉ時候也一樣會這樣!!
這是機油ㄉ問題嗎?
作者:
relax 時間: 2006-9-18 09:47 PM
自己在推一下~~
作者:
oosty 時間: 2006-9-19 04:46 PM
Originally posted by
shin at 2006-9-2 17
:
真空表安裝就如圖所示,再接個3通出來既可
這條管是EEC嗎?還是其他管路?
除了這條跟PCV外,還有管路能裝二次進氣嗎?
作者:
shin 時間: 2006-9-19 05:04 PM
我也不知道
因為手冊沒寫...我正在找2005+的Duratec 手冊
其他的真空管抓出來的值都不正確....Originally posted by oosty at 2006-9-19 04:46 PM:
這條管是EEC嗎?還是其他管路?
除了這條跟PCV外,還有管路能裝二次進氣嗎?