mad shimmy between 60-70mph
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New Member
Joined: Dec 2005
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mad shimmy between 60-70mph
I had the wheels balanced hoping that it would solve the problem, but that didn't do the trick.
I think one of the tires has worn unevenly (I bought the rims and tires used and just put them on this spring), but I want to figure out what the other possible/likely causes are.
I can think of:
-wheel balance
-bent rim
-unevenly worn tire
-alignment
What order should I try to rule them out? Should I go get some new rubber? Purely from a MM point of view, these tires should last another year or two as summers only.
The other option - is never drive below 75mph on the highway. It's silky smooth around 80.
I think one of the tires has worn unevenly (I bought the rims and tires used and just put them on this spring), but I want to figure out what the other possible/likely causes are.
I can think of:
-wheel balance
-bent rim
-unevenly worn tire
-alignment
What order should I try to rule them out? Should I go get some new rubber? Purely from a MM point of view, these tires should last another year or two as summers only.
The other option - is never drive below 75mph on the highway. It's silky smooth around 80.
AudiWorld Senior Member
Joined: Mar 2005
Posts: 683
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2nd . . Or out of round tire due to improper storage?
In any event, I'd take it back to the shop that did the balancing and ask for another look.
If they are reputable they'll do it again free of charge and also check for out of round tire or bent rim (which they should have looked for when they did the balancing to begin with).
If they are reputable they'll do it again free of charge and also check for out of round tire or bent rim (which they should have looked for when they did the balancing to begin with).
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Tech Guru
Joined: Mar 2003
Posts: 6,006
Likes: 2
RFB is good, but
Its nto really needed. Roadforce is a crutch for people who wont look at a wheel and tire to determine if there's an out-of-round condition, which shoudl really be fixed, not covered up anyway.
I personally use simple, old, btu very well maintained equipment and do it all by eye. I've had the geniuses at Audi use the Hunter RFB machine and not catch what I can with my eyes. And maybe my very expensive eccentricity guage, called a screwdriver or straight-rule.
Grant
I personally use simple, old, btu very well maintained equipment and do it all by eye. I've had the geniuses at Audi use the Hunter RFB machine and not catch what I can with my eyes. And maybe my very expensive eccentricity guage, called a screwdriver or straight-rule.
Grant
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