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New Edge Cobras
Mystery vibration? maybe drive line,--- help.
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<blockquote data-quote="Mojo88" data-source="post: 16375447" data-attributes="member: 184279"><p>Looking at your first post again got me thinking... always dangerous, haha..... but when installing replacement OEM suspension bushings, it's imperative that the chassis be at ride height prior to final tightening of the bolts that hold the bushings in place, otherwise the bushings would be stressed. Maybe your new poly bushings are binding a bit??</p><p></p><p>I'm sure you're aware of this already, but just thought it was worth mentioning. Perhaps the poly bushings you installed did not have that requirement.</p><p></p><p>Anyway, good luck, I TOTALLY get it when you say it's driving you crazy. One of my cars was '68 Camaro with big-block. I spent a ton of money on motor work, only to feel engine vibration at ~2k rpm, even after being balanced by local race shop. I had to take it out and they re-balanced the rotating assembly... it STILL shook... they thought I was crazy, but I took it all apart again, and they re-balanced it for a third time (this time I was at the shop watching and helping) and this time the balance tech saw for himself that it was WAY out of whack. He had to add over 100g of Mallory metal to the crank, but then it was finally smooth.</p><p></p><p>So you just gotta keep after it and you should be able to solve it.</p></blockquote><p></p>
[QUOTE="Mojo88, post: 16375447, member: 184279"] Looking at your first post again got me thinking... always dangerous, haha..... but when installing replacement OEM suspension bushings, it's imperative that the chassis be at ride height prior to final tightening of the bolts that hold the bushings in place, otherwise the bushings would be stressed. Maybe your new poly bushings are binding a bit?? I'm sure you're aware of this already, but just thought it was worth mentioning. Perhaps the poly bushings you installed did not have that requirement. Anyway, good luck, I TOTALLY get it when you say it's driving you crazy. One of my cars was '68 Camaro with big-block. I spent a ton of money on motor work, only to feel engine vibration at ~2k rpm, even after being balanced by local race shop. I had to take it out and they re-balanced the rotating assembly... it STILL shook... they thought I was crazy, but I took it all apart again, and they re-balanced it for a third time (this time I was at the shop watching and helping) and this time the balance tech saw for himself that it was WAY out of whack. He had to add over 100g of Mallory metal to the crank, but then it was finally smooth. So you just gotta keep after it and you should be able to solve it. [/QUOTE]
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Mystery vibration? maybe drive line,--- help.
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