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Intermittent steering wheel shimmy at 70-110 kmh

Hi,
firstly, thanks to all posters on here... a great resource.
To the point....
My Bedford van has a shimmy at speed that comes and goes. I can't seem to find a pattern or specific circumstance that brings it on (ie. down hill, accelleration, cornering) so i thought I might throw it out to the panel.
does anyone know of any faults that cause intermittent wobble? Most things I think of wouldn't just go away for a while.

cheers
derek

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Disc rotors out of round?? tailshaft balance??
Tyres? Rims???

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Cheers, Lindsay.

4305

check the front wheel bearings, also have a look at the tie rod ends, a little bit of play there can have that effect.
Not sure what setup the Bedford has for wheel bearings but don't do them up too tight or they will bind, you just want nil movement, jack each wheel up, put oner hand under the bottom of the wheel and one on the top, see if you can wriggle the wheel in and out, should be no movement.
put back on ground, lay under front and get someone to just gently move the steering wheel from side to side till it takes up the play, if you can see any of the tie rods or joints moving before the rest of the rig does there is possibly your problem

johnperth

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LOL.
If you can see slack in the steering, that would be more than a possibly.
Cheers.

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Campbells Shed
Postcode 3147.

My Ford wagon (daily driver)had an intermittant vibration that was felt sometimes through the car and sometimes through the st/wheel. The tyres weren't that old and I thought the balance was OK. I'd gone on a long trip and was about to come home when I thought i'd check the tyres one more time. This time I ran my hand over all the treads thinking I may have something stuck in them (I know, I know) and cut the crap out of my hand on the protuding steel belts. One of the rear tyres had like a bubble that had worn through to the belts. Changed the spare and all was sweet - except for trying to claim warranty.
Most importantly check fron and rear ends to make sure nothings worn that could let go.
Also check front chassis, K frame , welds where suspension mounts as these are areas that a lot of bigger cars can crack causing the front end to become unstable at times.

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