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PostPosted: Mon Apr 15, 2013 5:42 pm 
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hi guys ive been having steering wheel vibrations on my fiesta si for a few years now and cant find the problem :(

ive tried a number on steering racks
had the tracking done a number of times
2 brand new driveshafts
replaced 2 buckled wheels
new steering uj joint
new track rods
brand new manual steering column
new top mounts
brand new gaz coilovers
new tyres
vibra technic mounts
area six rose jointed wishbones

(cars been converted to manual steering)

still cant find the problem :(

i bought the rs turbo box back in 2007 for 50quid and seems fine driving but anything over 80mph i 90% of the time get the vibrations through the steering wheel

really want to get it sorted so i can have the confidence to take the car on the track, the lsd diff seems to be fine, just struggling to find the cause

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PostPosted: Mon Apr 15, 2013 8:06 pm 
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Have the wheels been correctly balanced?

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PostPosted: Tue Apr 16, 2013 8:04 am 
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wheels are new - phil thought it was the alloys and the front 2 were buckled so changed them but no change :doh:

maybe worth a rebalance though

such a pain :doh:

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PostPosted: Tue Apr 16, 2013 8:20 am 
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yep wheels balanced and 100% straight

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PostPosted: Tue Apr 16, 2013 8:34 am 
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like i said yesterday - it's a pain - but maybe change box and see if it changes?

running out of ideas :lol:

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RIP BEN ELVIN (JAM) 6.6.84 - 3.10.12 - Gone but not forgotten - The below sums you up chap
Ben Elvin "Jam" wrote:
Through serious illness you meet some inspiring and determined people. its the best we can do as human beings to inspire and drive the determination of others. Ben.


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PostPosted: Tue Apr 16, 2013 9:11 am 
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Wheel bearing/hub hasnt been mentioned, and that would be a suggestion straight away before some of the other things you've changed. My wheel bearing is currently fucked and I get a wobble/vibration through the steering wheel on motorway journeys.

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PostPosted: Tue Apr 16, 2013 9:26 am 
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IIRC Phil has new hubs and bearings waiting to be fitted but i could be wrong :lol:

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RIP BEN ELVIN (JAM) 6.6.84 - 3.10.12 - Gone but not forgotten - The below sums you up chap
Ben Elvin "Jam" wrote:
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PostPosted: Tue Apr 16, 2013 9:50 am 
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well theres no play in the current front bearings, could the hub have slightly buckled but the bearing be fine? ive got some hubs off an si i broke up and had them fitted with new wheel bearings and flanges to go on

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PostPosted: Tue Apr 16, 2013 1:30 pm 
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If you've already tried new hubs and bearings then I'd rule it out, the chances of getting the same vibration from separate hubs is slim. The hub won't have buckled as such, but incorrect installation of new bearings could have caused a slight chamfer on the hub/bearing itself. But play in the bearings doesn't always show itself through the wheel off the ground and try for some movement, method.

Thinking about what else is connected to all that, what about your anti roll bar bushes? Have they been replaced at all? Gearbox mount? Or even exhaust mounts?

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PostPosted: Tue Apr 16, 2013 1:31 pm 
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they haven't been fitted yet - they have had new flanges and bearings fitted

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RIP BEN ELVIN (JAM) 6.6.84 - 3.10.12 - Gone but not forgotten - The below sums you up chap
Ben Elvin "Jam" wrote:
Through serious illness you meet some inspiring and determined people. its the best we can do as human beings to inspire and drive the determination of others. Ben.


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PostPosted: Tue Apr 16, 2013 2:42 pm 
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as above they havent been fitted yet, yep all exhaust mounts are new, vibra technic mounts also on it and havent covered many miles

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PostPosted: Tue Apr 16, 2013 2:53 pm 
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Oh right, sorry, misread that. When you said "had them fitted with new wheel bearings and flanges to go on" I thought you meant you had them fitted to the car. I would give them a go before you start ripping the box out :)

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PostPosted: Tue Apr 16, 2013 5:04 pm 
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Does it only happen at high speeds?

Anything engine/exhaust related would surely happen at the same revaluation at lower speed/gears.

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PostPosted: Tue Apr 16, 2013 11:00 pm 
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Percy wrote:
Does it only happen at high speeds?

Anything engine/exhaust related would surely happen at the same revaluation at lower speed/gears.

yep only at high speeds car drives in a straight line as well

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PostPosted: Wed Apr 17, 2013 8:02 am 
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Im still going for bearings...

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PostPosted: Wed Apr 17, 2013 9:57 am 
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Either that or the wheels aren't centred on the hubs properly for some reason

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PostPosted: Wed Apr 17, 2013 10:15 am 
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phil - whack the new hubs and bearings on and take her for a spin ;)

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Ford is not a decision you make to like, its a passion you grow up with.


RIP BEN ELVIN (JAM) 6.6.84 - 3.10.12 - Gone but not forgotten - The below sums you up chap
Ben Elvin "Jam" wrote:
Through serious illness you meet some inspiring and determined people. its the best we can do as human beings to inspire and drive the determination of others. Ben.


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PostPosted: Wed Apr 17, 2013 5:18 pm 
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another thing.id like to do is buy proper spacers for the cosworth cailpers as atm im using washers which is a.bit pikey they have proper spacers on ebay but i cant remember what size is required

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PostPosted: Fri Apr 19, 2013 9:04 am 
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Phil, get a proper set of st discs to remove the need for spacers.

When I ordered st discs they claimed there were two types.. I just got the ones that were advertised as the same diameter as the cosworth discs.

IMO its better than running a spacer.

But on your current problems, I would swap hubs/bearings..

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PostPosted: Fri Apr 19, 2013 9:50 am 
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happypaul wrote:
Phil, get a proper set of st discs to remove the need for spacers.

When I ordered st discs they claimed there were two types.. I just got the ones that were advertised as the same diameter as the cosworth discs.

IMO its better than running a spacer.

But on your current problems, I would swap hubs/bearings..


yeh ive got some brand new st discs in the garage but didnt fit without the spacers, but i also have a brand new set of cossie discs and pads sitting in the garage, so just need the correct spacers now

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