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The BMW Range
7 Series
Shimmy....if you have not already experienced this, brace yourself
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<blockquote data-quote="wan520i" data-source="post: 478297" data-attributes="member: 1625"><p>Ya, longshaft/propeller is also on my suspect list. I did changed the center mount/bearing during trouble shoot few months ago..., no luck. Will look into longshaft one day. Thanks.</p><p> </p><p> </p><p></p><p> </p><p>Bro moot, really appreciated your offer.., I am using 17' BBS RC rims with 235/45/17 rubbers. Yes, I'm aware of the arm bush tightening procedure, I think it was tighten in such way by my mechanic. I did solved shimmy many years back by changing rear disc, but not this time. Eh, can I take back the front brake that sold to you? hehe, siku tak buruk punya la.., the phone no you gave is 09? you are based in east coast? where got cargo plane here la?? </p><p> </p><p>Looking at the article as the link posted by <span style="color: royalblue"><strong>ssman</strong></span>, it desrcibe exactly the problem that I'm having.</p><p> </p><p>Here to summarize my shimmy problems:</p><p> </p><p>1. When cruising at highway around 80 - 100 km/h, the car/steering wheel vibrates lightly, which I can still tolerate.</p><p>2. When depress brake pedal lightly (not hard/full depress) from 100km/h, the car slow down with more obvious vibrates & the steering wheel shake like hell.</p><p> </p><p>Possible culprits: </p><p>- braking system? master cylinder? (when press purging brake oil, I noticed the force/pressure of oil came out are not balance, I meant 1 side at front and another side at rear is weaker, is it normal?)</p><p>- brake calipers? front or rear?</p><p>- longshaft?</p><p>- rims?</p><p>- cheap Kumho tires?</p><p>- power steering box?</p><p>- what else? oh man, i hate this list.</p></blockquote><p></p>
[QUOTE="wan520i, post: 478297, member: 1625"] Ya, longshaft/propeller is also on my suspect list. I did changed the center mount/bearing during trouble shoot few months ago..., no luck. Will look into longshaft one day. Thanks. Bro moot, really appreciated your offer.., I am using 17' BBS RC rims with 235/45/17 rubbers. Yes, I'm aware of the arm bush tightening procedure, I think it was tighten in such way by my mechanic. I did solved shimmy many years back by changing rear disc, but not this time. Eh, can I take back the front brake that sold to you? hehe, siku tak buruk punya la.., the phone no you gave is 09? you are based in east coast? where got cargo plane here la?? Looking at the article as the link posted by [COLOR=royalblue][B]ssman[/B][/COLOR], it desrcibe exactly the problem that I'm having. Here to summarize my shimmy problems: 1. When cruising at highway around 80 - 100 km/h, the car/steering wheel vibrates lightly, which I can still tolerate. 2. When depress brake pedal lightly (not hard/full depress) from 100km/h, the car slow down with more obvious vibrates & the steering wheel shake like hell. Possible culprits: - braking system? master cylinder? (when press purging brake oil, I noticed the force/pressure of oil came out are not balance, I meant 1 side at front and another side at rear is weaker, is it normal?) - brake calipers? front or rear? - longshaft? - rims? - cheap Kumho tires? - power steering box? - what else? oh man, i hate this list. [/QUOTE]
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Shimmy....if you have not already experienced this, brace yourself
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