請問各位大俠: 換TIMIG BELT 為什麽要 TDC?

我一直在鼓足勇氣想換我科羅拉的正時帶, 反複閱讀維修手冊. 其中講一定要把上下
軸轉到TDC( TOP DEAD CENTER ). 我就是不明白其必要性. 我的理解是, 換皮帶時
,隻要上下齒輪的相當關係不變就行. 也就是說, 我隨意選個位置, 在上下齒輪和發
動機上分別劃上一道線...標誌該齒輪與發動機身的關係, 然後把新皮帶裝上去, 保
持齒輪和機身的相對位置,也就是保持上下兩齒輪的相對位置.不知道我的理解對不
對? 這年頭想省個$300 塊錢自己換...先謝謝各位!
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所有跟帖： 

• 我的Crank pulley 鏽的嚴重, 擔心看不到標誌了. -iammadaboutu- ♂ (0 bytes) () 10/19/2009 postreply 10:44:53

• 你勇敢，我不敢碰正時皮帶。$300要連水泵一起換不算貴。聽說 -色大膽小- ♂ (39 bytes) () 10/19/2009 postreply 11:04:41

• 我已經研究了快一年了. :) -iammadaboutu- ♂ (166 bytes) () 10/19/2009 postreply 11:21:12

• 我看過修理工卸那大螺絲，如果你沒有Impact Wrench, 記住這個訣竅： -色大膽小- ♂ (12 bytes) () 10/19/2009 postreply 11:53:19

• You can buy an electric impact wrench -xxhhwxc- ♂ (65 bytes) () 10/19/2009 postreply 11:52:04

• I did bought one, but still dare not to do that job. -色大膽小- ♂ (0 bytes) () 10/19/2009 postreply 11:54:03

• 我也是擔心,所以至今還在相麵..:) 主要擔心有3: -iammadaboutu- ♂ (315 bytes) () 10/19/2009 postreply 12:30:00

• 我準備用一個三米長的加長杆子..不知道行不. -iammadaboutu- ♂ (51 bytes) () 10/19/2009 postreply 12:10:43

• 這方法是對的。我每次都用加長管。SEARS的1/2”WRENCH頭也扳斷過兩回. -喜歡折騰- ♂ (0 bytes) () 10/19/2009 postreply 12:17:38

• 還有有的歐洲不需要卸CRANK PULLEY BOLT。真是方便. -喜歡折騰- ♂ (0 bytes) () 10/19/2009 postreply 12:22:03

• long stick would work if -xxhhwxc- ♂ (47 bytes) () 10/19/2009 postreply 15:29:47

• 調到TDC是為了便於檢查timing標記是否對齊(在一直線上) -Formula-1- ♂ (529 bytes) () 10/19/2009 postreply 12:05:52

• 謝謝..我有一本HANES 手冊, 不是很詳細. -iammadaboutu- ♂ (35 bytes) () 10/19/2009 postreply 12:13:36

• online manual就是dealer出的shop manual,當然比HANES好 -Formula-1- ♂ (0 bytes) () 10/19/2009 postreply 15:20:44

• 理論上是對的。問題是皮帶一鬆開，CAM PULLEY就會滑開. -喜歡折騰- ♂ (22 bytes) () 10/19/2009 postreply 12:11:33

• 謝謝, 我想就是這個原因. -iammadaboutu- ♂ (0 bytes) () 10/19/2009 postreply 12:15:52

• 我也研究很久了，感覺那玩意沒什麽難的。但都說需要6小時 -coorslight969- ♂ (8 bytes) () 10/19/2009 postreply 12:55:49

• 是這樣, -iammadaboutu- ♂ (367 bytes) () 10/19/2009 postreply 13:27:40

• 這就是人生的意義之一"對未知的不斷探究" -mycellphone- ♂ (21 bytes) () 10/19/2009 postreply 20:21:46

• Once you have done that, you won't be afraid of anything. -QYZ- ♂ (441 bytes) () 10/19/2009 postreply 14:14:17

• Well said Brother! -iammadaboutu- ♂ (0 bytes) () 10/20/2009 postreply 05:22:00

• 日本車好像沒必要換 -ck800- ♀ (128 bytes) () 10/19/2009 postreply 14:16:02

• It depends on type of timing belt on the car. -QYZ- ♂ (141 bytes) () 10/19/2009 postreply 14:19:38

• For Honda cars, TB broken means engine is dead -internuts- ♂ (0 bytes) () 10/19/2009 postreply 14:49:28

• 看我的舊貼 -biglow- ♂ (92 bytes) () 10/19/2009 postreply 14:45:35

• Very nice writing. I will read it again when I have everyting ap -iammadaboutu- ♂ (0 bytes) () 10/20/2009 postreply 05:31:30

• Thanks alot everyone, I really appreciate it!! -iammadaboutu- ♂ (0 bytes) () 10/19/2009 postreply 17:14:10

• 你的原理不對 -three- ♂ (68 bytes) () 10/19/2009 postreply 17:42:51

• You have to do it, otherwise you will regret later -wolfmanii- ♂ (714 bytes) () 10/19/2009 postreply 18:16:49

• You are so right on! I have to do it! -iammadaboutu- ♂ (0 bytes) () 10/20/2009 postreply 05:30:27

• 讓我來告訴你 -潤濤閻- ♂ (260 bytes) () 10/20/2009 postreply 05:51:03

• 謝謝大俠. -iammadaboutu- ♂ (121 bytes) () 10/20/2009 postreply 06:11:42

• The consequence of a broken timing belt depends on whether it i -QYZ- ♂ (733 bytes) () 10/20/2009 postreply 07:11:26

• You are right. I believe Corolla is non-interference. -iammadaboutu- ♂ (0 bytes) () 10/20/2009 postreply 07:26:24

• 因為它是金屬帶了，外麵有膠皮. Is this true for the Corola? -QYZ- ♂ (0 bytes) () 10/20/2009 postreply 07:14:14

• 理解不了：超過22年我就不敢說了。估計40年沒大問題 -天涯過客-- ♂ (0 bytes) () 10/20/2009 postreply 08:23:43

• 回複：讓我來告訴你 -victormao- ♂ (148 bytes) () 10/20/2009 postreply 11:31:10

• 他沒搞過，當然很難找回來了。要是搞過，他還問這個問題幹嘛 -潤濤閻- ♂ (0 bytes) () 10/20/2009 postreply 20:55:07

• 撤銷推薦 你 當班主。 -北航新保理英子- ♀ (0 bytes) () 10/20/2009 postreply 17:29:43

• 為啥？ -biglow- ♂ (0 bytes) () 10/20/2009 postreply 18:56:13

• 回複：請問各位大俠: 換TIMIG BELT 為什麽要 TDC? -DIY100- ♂ (671 bytes) () 10/20/2009 postreply 09:56:49

• Thanks a lot! -iammadaboutu- ♂ (0 bytes) () 10/20/2009 postreply 10:42:55

• 回複：回複：請問各位大俠: 換TIMIG BELT 為什麽要 TDC? -victormao- ♂ (314 bytes) () 10/20/2009 postreply 11:28:48

• Thanks alot! -iammadaboutu- ♂ (0 bytes) () 10/20/2009 postreply 12:12:15