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Location:
Perth
Registered:
August 2003
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car vibrations
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Thu, 21 April 2005 18:38
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howdy, from last week my cars been making a bad vibration under the car. I've checked the engine/gearbox mounts, I've searched around the forum and found some things.
Symtons are:
vibrates in 1st and 2nd the most when accelerating hard, quite little vibrations when driving very smoothly.
Doesn't vibrate in netural or when clutch is in.
Doesn't vibrate when in reverse or above 70km+.
Main thing i'm guessing is the center bearing in the tailshaft. Otherwise uni-joints or diff.
Hoping it isn't the diff. Still got a spare tailshaft, diff and uni-joint 
Also the vibrations were extremly bad before i changed my fuel filter and topped up my oil(was hella empty for some reason)
Any advise or points you can give me. I don't want to pull anything apart until i can some information.
thanks. 
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Location:
Sydney
Registered:
June 2004
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Re: car vibrations
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Thu, 21 April 2005 19:22
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sounds to me that i may be possibly crank/fly/clutch needs balance, if your pressing the clutch and releasing it from the rest of the drive shaft/train then its more than likely that
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Location:
Perth
Registered:
August 2003
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Re: car vibrations
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Thu, 21 April 2005 19:48
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but why does it only vibrate at low speeds
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Location:
Sydney
Registered:
June 2004
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Re: car vibrations
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Thu, 21 April 2005 20:56
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basically at low speeds the crank isnt spinning fast enough and therefore all the vibration is released out, at higher speeds its spinning fast enough that the vibrations are not noticeable. im not the best at explaining this but i know why myself 
maybve someone else can explain this better but im sure that is the issue as stated above
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Location:
BRAY PARK BRISBANE
Registered:
March 2005
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Re: car vibrations
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Thu, 21 April 2005 23:03
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i would think its the centre baring if you got a spare tailshaft thats in good nick put it in it wont cost you anything and if it doesent stop then you have just eliminated something
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Location:
Brisbane
Registered:
April 2004
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Re: car vibrations
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Thu, 21 April 2005 23:55
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well from the job i'm in i've come across problems very simmilar to this the problem list as follows most likly to least likly (1) tail shaft out of balance check to see if you lost any weights (2) is it a 2 piece tail shaft if so center bearing might be worn (3) uni joints worn (4) tyres out of round (5) engine and trans miss aligment. try these out
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