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bad vibration 

 

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 Post subject: bad vibration
Posted: Sun Jul 31, 2005 11:45 pm 
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hi to all can somebody help me regarding i have a bad vibrations whiring noise louder when i have people in the back. car has only been lowered to tickford specs : :( thanks.
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Posted: Mon Aug 01, 2005 12:03 am 
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get your uni's checked

 

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Posted: Mon Aug 01, 2005 10:01 am 
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is it only since its been lowered
check balance of rear rims/tyres for buckles and check for seperation in the tyres (when the tread starts to come away from the case) it causes and egg shape in the tyre.
if not we'll look elsewhere
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Posted: Wed Aug 03, 2005 10:56 pm 
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Is it an EL?
If it is its a common problem. Lowered ELs drop the pinion too much and it causes the vibration. More noticable with a bootful of stuff or people in the back as it makes the rear drop even further.

 

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2008 WQ Fiesta XR4
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Posted: Thu Aug 04, 2005 8:37 pm 
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no its a ef gli only with king spring lows not super lows
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Posted: Thu Aug 04, 2005 11:34 pm 
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I had and EF XR6 with the tickford suspenion, I lowered that even further
and could take the family and all our gear away on holidays with no
problems so I think is not in the lowering.

Maybe jack the rear of the car up on some blocks and do some tests with your mates, put the car in gear let the rear wheels turn get your mates to hope in look and listen for noises to see if its still there note under load

could even be further back up the drive train in the box.
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Posted: Fri Aug 05, 2005 10:56 pm 
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thanks mate i will give it a go & let you no mick
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Posted: Sat Aug 06, 2005 1:22 am 
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The tickford arms that locate the diff are slightly different in length and thus affect the pinion angle before lowering. So lowering an xr and lowering a non xr cant really be considered equal. You may need to look at changing the pinion angles so that they dont produce these bad harmonics. Either that, or kick everyone out the back :P

 

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The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?
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Posted: Sat Aug 06, 2005 1:25 am 
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Oops, wrong thread!

 

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The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?
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Last edited by Andrew J on Sat Aug 06, 2005 1:27 am, edited 1 time in total.

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Posted: Sat Aug 06, 2005 1:26 am 
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I have no idea what im doing, so heres a picture of a rabbit with a pancake on its head :?

Image

 

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The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?
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Posted: Sat Aug 06, 2005 5:57 am 
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Incorrect pinion agle will cause vibration, but as u said it was done to tickford specs so i take it the pinion has already been changed to allow for the lowering. If so i would replace the uni joints as for the past 100,000 k's plus they have worn into the old pinion angle (grooves wear into uni spider/cross)
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Posted: Sat Aug 06, 2005 11:08 pm 
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Makes me laugh

andrew i like rabbits too

 

 

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Posted: Sun Aug 07, 2005 10:24 pm 
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i will give that a go . also i notice when i change fom pwr mode to economy mode the vibration is so much noticeable much more louder when i increase speed i have change the whole diff & its still there mick
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