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Original Message
RE: 428 Vibration
By Gerry Proctor - 03/13/2006 9:08:10 AM; IP 137.242.1.15
Vibrations can be tough to diagnose. They can be in the tuneup or in the mechanicals.

Tuneup related vibrations will usually occur under very specific conditions and are not generally RPM-related.

Mechanical vibrations or harmonics are usually related to rpm. They can be anything from a broken engine mount, the wrong flywheel, an engine componen imbalance, or even in the accessory drives. These type vibrations usually show up at a trigger rpm and get worse as the engine rpm goes up.

You have to be very specific and leave no clues out when you're trying to get these figured out.
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Collapse <a href=../ForumFE/reply.aspx?ID=26981&Reply=26981><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor26981" onclick="return false;">428 Vibration</a>&nbsp;-- <font color=#0000ff>Max, <i>03/12/2006</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=26981', contentMargin: 60, icon: $('anchor26981') }); </script>  428 Vibration -- Max, 03/12/2006
Collapse <a href=../ForumFE/reply.aspx?ID=26983&Reply=26981><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor26983" onclick="return false;">RE: 428 Vibration</a>&nbsp;-- <font color=#0000ff>John, <i>03/12/2006</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=26983', contentMargin: 60, icon: $('anchor26983') }); </script>  RE: 428 Vibration -- John, 03/12/2006
Collapse <a href=../ForumFE/reply.aspx?ID=26987&Reply=26981><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor26987" onclick="return false;">RE: 428 Vibration</a>&nbsp;-- <font color=#0000ff>Max, <i>03/12/2006</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=26987', contentMargin: 60, icon: $('anchor26987') }); </script>  RE: 428 Vibration -- Max, 03/12/2006
Collapse <a href=../ForumFE/reply.aspx?ID=26989&Reply=26981><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor26989" onclick="return false;">Hmmmm......</a>&nbsp;-- <font color=#0000ff>John, <i>03/12/2006</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=26989', contentMargin: 60, icon: $('anchor26989') }); </script>  Hmmmm...... -- John, 03/12/2006
 RE: Hmmmm...... -- Max, 03/12/2006
Collapse <b>RE: 428 Vibration</b>&nbsp;-- <font color=#0000ff>Gerry Proctor, <i>03/13/2006</i></font>RE: 428 Vibration -- Gerry Proctor, 03/13/2006
 RE: 428 Vibration -- Martin Micheelsen, 03/14/2006
Collapse <a href=../ForumFE/reply.aspx?ID=27024&Reply=26981><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor27024" onclick="return false;">RE: 428 Vibration</a>&nbsp;-- <font color=#0000ff>Hal, <i>03/21/2006</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=27024', contentMargin: 60, icon: $('anchor27024') }); </script>  RE: 428 Vibration -- Hal, 03/21/2006
 RE: 428 Vibration -- Max, 03/21/2006
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