Date: 1 Dec 2002 06:41:31 -0800 From: alancemornopsamo.com (Lance Morgan) Subject: Re: c900 harmonic droning?
> > > "Lance Morgan" <alancemornopsamo.com> wrote in message > > > news:2a52f3e9.0211241647.193dd2ffnopsaming.google.com... > > > > I recently purchased a 91 900S (briefly had a 86 900T years ago), and > > > > am really enjoying it. > > > > > > > > I've noticed something I'd appreciate comments on: a harmonic type > > > > droning - always starting at 70 mph up to at least 85 mph, and have > > > > also sometimes heard it ~ 45 mph in 3rd, albeit a slightly different > > > > tone. > > > > > > > > The noise is moderate in pitch and, at high speed, has a repetitive > > > > frequency of less than 1 second. It reminds me of riding in a twin > > > > engine airplane > > > > > > > > The noise completely abates when I push the clutch in, coasting at > > > > high speed. > > > > > Lance > > > > 5 spd 3dr 125K > > > > Thought of engine mountings? > > Johan I did, but then thought them to be an unlikely culprit. But I will/should inspect them anyway. I did change the tranny fluid over to Redline MTL last night - thru the "8 drain hole plugs" ;-) - and it'll be interesting to see how it drives now. Lance
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