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Author Topic: Vibration through transmission.  (Read 1001 times)

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Shallow Al

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Vibration through transmission.
« on: 01 January 2010, 18:06:04 »

Hi All and happy New Year.
 Had the car a few weeks now. Had to change the cam sensor, which I found out all about reading this forum, and all seems ok with it now.
 However, just been up the motorway with it for a bit of a run and there is a vibration through the body or more of a 'thrum' really. It comes in at about 60mph and you can feel it through the gear selector lever and not the steering.
 So, I am thinking maybe rear wheels need balancing (cheap tyres on at the moment) or propshaft.
 It sticks out like a sore thumb and is a shame as the ride is very classy otherwise.
Love this car to bits, Omegas are a well kept secret!
 Anybody had anything similar on their chariot?
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unlucky mark mv6

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Re: Vibration through transmission.
« Reply #1 on: 01 January 2010, 18:43:23 »

Its never easy to pin point something like that al,but personally i would start with the obvious,such as engine/transmission mount,which in my opinion would explain why can feel it through the lever.Usually you would feel it through the steering if it were wheel balance or suspension componants. :y
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Shallow Al

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Re: Vibration through transmission.
« Reply #2 on: 01 January 2010, 20:58:23 »

Thanks for reply Mark.
Hope its not wheel bearings on the rear, as I have read on here they are not nice to do, dont think it is as I think they would be making noise.
As you say, check the mountings first.
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unlucky mark mv6

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Re: Vibration through transmission.
« Reply #3 on: 01 January 2010, 21:29:04 »

Quote
Thanks for reply Mark.
Hope its not wheel bearings on the rear, as I have read on here they are not nice to do, dont think it is as I think they would be making noise.
As you say, check the mountings first.
:y :y
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rustym95

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Re: Vibration through transmission.
« Reply #4 on: 02 January 2010, 04:12:40 »

would look at the propshaft rubber, and check the balance weight as well.
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feeutfo

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Re: Vibration through transmission.
« Reply #5 on: 02 January 2010, 04:49:03 »

lump or bulge in rear tyre? buckled wheel? Try a 5 stud, as opposed to a cone balancer, more accurate. Simple stuff first.... ;)
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bigdods

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Re: Vibration through transmission.
« Reply #6 on: 02 January 2010, 11:22:46 »

eliminate the wheel/tyre by sticking the spare on one corner at a time then testing. Assumes your spare is ok of course !
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Shallow Al

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Re: Vibration through transmission.
« Reply #7 on: 02 January 2010, 21:47:47 »

Thanks for replies.
May well be the rear tyres or wheels or one of them. I filled it up with petrol today and it is much better. Something is out of whack at the back.
 Probably tyres, as I said, they are cheap ones. Never heard of them before.
Will substitute with the spare to prove the fault, as mentioned by Bigdods and see where it takes me.
Thanks all.
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