Date: Sun, 26 Nov 2006 08:21:30 -0800
Reply-To: Evan Mac Donald <macdonald1987@SBCGLOBAL.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Evan Mac Donald <macdonald1987@SBCGLOBAL.NET>
Subject: Re: Unidentifiable sound
In-Reply-To: <de48c0be0611260805w4505ab0r1eed37be65caf88c@mail.gmail.com>
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Ah-ha! This new noise is almost certainly a CV on its way out. Or at least running dry. Sometimes, since the "bad" CV can be an inner or an outer, the noise will be transmitted in odd fashions, and not seem to come from where it really is. This "new" noise may finally be a shift in the CV's innards position, and now it is really complaining. Check the boots for tears, especially the outers. They are harder to see. Better protected from road hazards, but harder to see. Grease slung to the surrounding structure is a dead give-away, but not the only one. My Butternut drove me crazy for weeks, while I tried to find the type of noise you first described. Then, when the "tock-tock" started, I knew right where to go!
mordo <helmut.blong@GMAIL.COM> wrote: Hmmm. It didn't seem to be emanating from the rear but it did seem to
modulate when shifting weight in turns.
I will soon go drive it unladen. Perhaps this will shed some light.
There is another noise that I haven't described because proper descriptors
escape me. It does emanate from the right rear, I think. This noise occurs
while traveling at highway speeds and you then come of the pedal to brake or
just to coast down. It sounds like a dull, hollow metallic knocking of
sorts. Maybe a "TOCK-TOCK" but I fear that doesn't really capture it. This
noise was reproducible before the previously described noise started. It
only happened in the conditions of I just mentioned.
I'm feeling like it is likely wheel bearings, front or rear (or both) as we
discuss it further. I'm just a bit surprised that the unfamiliar noise would
come on so suddenly. I've had bearing whine on other vehicles and it took
days or weeks of steadily progressing to the very noisy state that I
describe. This was a night/day thing - previous afternoon, no whine
(unladen). Next day, very noticable (laden).
I'll report back after a test drive.
On 11/26/06, ROBERT DONALDS wrote:
>
> I have not seen mentioned the rear wheel bearings they can be noisy as
> well
> starting at 30 MPH and the sound changes as the weight of the van shifts
> from side to side
>
> Bob Donalds
>
>
>
> ----- Original Message -----
> From: "mordo"
> To:
> Sent: Sunday, November 26, 2006 7:58 AM
> Subject: Fwd: Unidentifiable sound
>
>
> > >
> >> Have you tried jacking each front corner up so you can check the front
> >> wheels for loosness?
> >
> > I haven't done that yet. I just returned home last night. I'll do a
> > variety
> > of tests this afternoon. Firstly, Ill see how id sounds at the same
> > speeds,
> > unloaded.t's hard for me to imagine that the load I carried could make
> > sucha
> > difference particularly since it was the same load ont he trip down.
> >
> >> vanagons have a somewhat peculiar/advanced steering system ... the
> >> front wheels LEAN into the turn as your turn the steering wheel. bmws
> >> also do this.
> >
> >
> > I noticed this fact earlier in the week. I was surprised at how much the
> > wheel tipped out. I don't think the tires are worn significantly. ALso,
> > the
> > fact that the day before, it road fine and sounded fine. at speeds up to
> > 55mph.
> >
> >
> >
> >> Don't neglect the possibility that it is the road, and not your
> >> vehicle. Especially when you are traveling in an area that you aren't
> >> a native of.
> >>
> >
> > Hmm. Seems unikely as I traveled on a broad variety of pavements.
> >
> > The baffling part is that the sound was an immediately different
> condition
> > than the day before's condition. Usually, tire wear and bearing wear are
> > thigs that get pogressively worse. Weird.
> >
> > Thanks for the comments.
> >
> >
> > --
> > mordo
> > 1990 Carat
> >
>
>
>
--
mordo
1990 Carat
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