Toni
You can get about 100 miles on a completly dry rear diff. Testing this idea
requires a replacement diff so just take my word for it. Unless you like
changing diffs and cleaning all the broken bits out.
I had a howling noise like you describe. It was the rear diff ring and
pinion. The noise went away after rebuilding the diff with an ARB carrier.
Same R&P but they were adjusted to specs. If the ring and pinion are not
meshing in the proper location it can cause a really loud howling.
Bill Fishel
----- Original Message -----
From: Toni <toni@macpower.fi>
Sent: Sunday, November 24, 2002 1:35:19 PM
To: Land Rover Owners list <lro@koan.team.net>
Subject: [lro] Howling noise when driving
>
> Hi,
>
> I've been preparing my SIIA for daily use. It is slow as there is winter
> outside and way below freezing. Think snow, arctic explorer -clothing and
> doing electric repairs outside - no fun at all ;)
>
> Well I got the electrics fixed (new fuse box, new ignition lock, new light
> switch, some new wiring), installed Pertronix Ignitor and coil, adjusted
> timing, installed new battery, new wipers etc.
>
> Yesterday I was ready to test drive. Everything else worked fine but
there is
> couple of problems. My clutch is sometimes noisy. Not when I am driving
but
> sometimes when I press the pedal while not moving there is a harsh sound
which
> goes away when I lift the pedal. Hope it lasts until next summer. The more
> accute problem is the loud howling noise I hear when travelling about
28-43
> mph. Nothing below or over. Though I am not sure if the sound is speed or
revs
> dependent.
>
> It feels like the sound comes from rear but I am not sure. It sounds like
a
> worn wheel bearing but as it can be heard when driving in a straight line
and
> it disappears when speed changes I don't think it is a wheel bearing. I
> haven't checked the gearbox or rear end oils yet.
>
> So, what do you suggest? Dry rear end?
>
> Regards,
>
> Toni
> Finland
>
> LR '66 SIIA STW
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