Strange noise, Defender 90 TD

Hi!

My wifes Defender 90 2.5TD started making some strange sounds; it is a
kind of tapping/rattling/vibration about twice per second when no gear
is angaged and/or the clutch is pressed, and when rolling to stop in
front of traffic lights or so. It starts at around 5km/h, but never at
higher speeds, and never while accelerating or normal driving. Until
now I coould not find out if it comes from the rear or from the front


Any ideas what this could be?



regards - Ralph

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"Ralph A. Schmid, DK5RAS" <[email protected]> wrote in message
news:[email protected]...
> Hi!
>
> My wifes Defender 90 2.5TD started making some strange sounds; it is a
> kind of tapping/rattling/vibration about twice per second when no gear
> is angaged and/or the clutch is pressed, and when rolling to stop in
> front of traffic lights or so. It starts at around 5km/h, but never at
> higher speeds, and never while accelerating or normal driving. Until
> now I coould not find out if it comes from the rear or from the front
>
>
> Any ideas what this could be?
>

This sounds like the good old binding transmission brake symptoms again, the
rattling/vibration occurs when the shoes snatch at the drum at lower speeds
(always seems to be below 5mph in my experience) This causes the slack in
the transferbox and front prop/diff to oscillate or rattle. Check handbrake
linkage isn't ceasing and check expander in transmission brake is free &
greased, it can also happen if mud had got in the drum.

Hope this helps,
Fergus

"fergus.kendall" <[email protected]> wrote:

>This sounds like the good old binding transmission brake symptoms again, the
>rattling/vibration occurs when the shoes snatch at the drum at lower speeds
>(always seems to be below 5mph in my experience) This causes the slack in
>the transferbox and front prop/diff to oscillate or rattle. Check handbrake
>linkage isn't ceasing and check expander in transmission brake is free &
>greased, it can also happen if mud had got in the drum.

Yes, sounds sensible. We hat a trip of 140km today (just came back
home), and it just happened one or two times after we had started, it
did not come back yet. This also made me think about the brakes. So at
least it is nothing to worry too much, and we can check what you had
suggested without the urge to do it immediately. Thank you very much!

>Hope this helps,
>Fergus




regards - Ralph

--

Want to get in touch? http://www.radio-link.net/whereisralph.txt

Ralph A. Schmid, DK5RAS wrote:
> "fergus.kendall" <[email protected]> wrote:
>
> >This sounds like the good old binding transmission brake symptoms
again, the
> >rattling/vibration occurs when the shoes snatch at the drum at lower
speeds
> >(always seems to be below 5mph in my experience) This causes the
slack in
> >the transferbox and front prop/diff to oscillate or rattle. Check
handbrake
> >linkage isn't ceasing and check expander in transmission brake is
free &
> >greased, it can also happen if mud had got in the drum.
>
> Yes, sounds sensible. We hat a trip of 140km today (just came back
> home), and it just happened one or two times after we had started, it
> did not come back yet. This also made me think about the brakes. So
at
> least it is nothing to worry too much, and we can check what you had
> suggested without the urge to do it immediately. Thank you very much!
>
> >Hope this helps,
> >Fergus
>
>
>
>
> regards - Ralph
>
If not the handbrake, could the noise be coming from a worn clutch
throwout bearing? Just a thought. Brake would obviously be a simpler
repair, so hopefully that's all that's making that noise. Cheers.