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Vibrations @ 100kmh 

 

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 Post subject: Vibrations @ 100kmh
Posted: Sun Apr 08, 2012 3:55 pm 
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Joined: 28th Aug 2006

Location: Perth
WA, Australia

Hello,

At between 100-110kmh on the fwy, the steering wheel seems to vibrate a fair bit. It is only small side to side vibrations, not the larger wheel alignment type vibrations...if that makes any sense.
Anyways, I just replaced the steering rack, tie rods and ball joints in my NF Fairlane, and got the wheel alignment at the time. But still seems to vibrate at those speeds.

What could the issue be? If it were a front camber/castor problem, wouldn't they highlight that to me at the time of the wheel alignment and suggest I get a camber kit?
Could it be the pinion angle thing I've read about recently? It is lowered, but not crazy lowered. I am yet to check which trailing arms are installed, etc.

Any help appreciated!
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 Post subject: Re: Vibrations @ 100kmh
Posted: Sun Apr 08, 2012 4:14 pm 
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NSW, Australia

wheels are out of ballance,or tyres are s**t or rims buckled???
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 Post subject: Re: Vibrations @ 100kmh
Posted: Sun Apr 08, 2012 5:51 pm 
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TROYMAN wrote:
wheels are out of ballance,or tyres are s**t or rims buckled???

As above, also check your wheel bearings for any play. Warped brake rotors can occasionally cause vibration at highway speeds, any pulsating under brakes?

 

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 Post subject: Re: Vibrations @ 100kmh
Posted: Sun Apr 08, 2012 10:01 pm 
Getting Side Ways
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+2 for wheels.

 

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 Post subject: Re: Vibrations @ 100kmh
Posted: Fri May 04, 2012 2:30 pm 
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Mine had the same thing, worse while braking but it wasn't the disks. When I got new tyres I got them to swap the rims from front to back and it fixed it, so odds are it was a bent wheel. Try swapping your front and back rims and see if that fixes it.

 

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 Post subject: Re: Vibrations @ 100kmh
Posted: Fri May 04, 2012 9:52 pm 
Getting Side Ways
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Ride: el wagon

Location: melbourne
VIC, Australia

Ok., It's an NF, which means it is fairly old ( no criticism intended) you have replaced the rack, tie rods and ball joints. Have you replaced/looked at the upper inner bushes? Have you looked at the radius arm bushes, both on the chassis and the lower control arms? Have you looked at/checked the lower control arm bushes (all of them??)

I hope you didn't accept ROADSAFE ball joints, because they are crap with a capital "CRAP"

Food for thought......................
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 Post subject: Re: Vibrations @ 100kmh
Posted: Sun Jun 03, 2012 9:24 pm 
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Many years ago I had vibration at between 140 and 155-ish (gone by 160) - it turned out to be the Bitron puncture sealant I had put in the tyres. What p****d me off was I suspected that's what it was and called into Beaurepairs Catherine and asked them to unmount the tyres, clean / flush them out and remount them - but when I picked it up the f&^kers had simply done a balance check on the wheels "couldn't find and problems, mate". When I explained that the issue was starting at 140 they just stared blankly at me. Had to put up with it all the way to Broome :x

 

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