Strange noise and clunking from a Disco

P

Paul S. Brown

Guest

• Jan 13, 2005

• #1

I've just had my Disco in and spent a bit of money having one of the CV
joints and a swivel ball replaced, but unfortunately it hasn't cured the
main problem I had.

At low speed with the clutch down I get a heavy clunkclunkclunk from
somewhere in the front along with a noticable difference in speed every
time the clunk happens - the car slows down a little.

Thoughts on what this might be? I'm suspecting that it *may* be one of the
UJs on the front propshaft having problems, but it only happens at low
(less than 5MPH) speed.

P.

 

I

Ian Rawlings

Guest

• Jan 13, 2005

• #2

On 2005-01-13, Paul S. Brown <[email protected]> wrote:

> At low speed with the clutch down I get a heavy clunkclunkclunk from
> somewhere in the front along with a noticable difference in speed every
> time the clunk happens - the car slows down a little.

It does sound like the front propshaft UJs, I had similar from the
rear on my Defender (not sure if Disco is the same), clunks at low
speed, a vibration at higher speed. It's easy to check though, get
under there with a small breaker bar and see if you can move the UJs
around. However if a garage didn't spot the UJs as being the source
of the problem then it might not be, as it's an easy problem to spot
and I'd like to think they wouldn't be *that* daft....

Note that you can also get this if the UJs have been replaced and not
put back in with the correct phasing, at least on the Defender. Have
you had UJs or prop shaft messed with recently?

--
For every expert, there is an equal but opposite expert

 

P

Paul S. Brown

Guest

• Jan 13, 2005

• #3

Ian Rawlings wrote:

> On 2005-01-13, Paul S. Brown <[email protected]> wrote:
>
>> At low speed with the clutch down I get a heavy clunkclunkclunk from
>> somewhere in the front along with a noticable difference in speed every
>> time the clunk happens - the car slows down a little.
>
> It does sound like the front propshaft UJs, I had similar from the
> rear on my Defender (not sure if Disco is the same), clunks at low
> speed, a vibration at higher speed. It's easy to check though, get
> under there with a small breaker bar and see if you can move the UJs
> around. However if a garage didn't spot the UJs as being the source
> of the problem then it might not be, as it's an easy problem to spot
> and I'd like to think they wouldn't be *that* daft....
>
> Note that you can also get this if the UJs have been replaced and not
> put back in with the correct phasing, at least on the Defender. Have
> you had UJs or prop shaft messed with recently?
>

Not had them messed with, but the car's on a 2" lift kit, so they're
probably under more stress than they should be

I didn't actually ask the garage to investigate that, I knew I had a problem
with the CVJs and they fixed that problem.

P.

 

A

Austin Shackles

Guest

• Jan 14, 2005

• #4

On or around Thu, 13 Jan 2005 22:38:48 GMT, "Paul S. Brown"
<[email protected]> enlightened us thusly:

>Ian Rawlings wrote:
>
>> On 2005-01-13, Paul S. Brown <[email protected]> wrote:
>>
>>> At low speed with the clutch down I get a heavy clunkclunkclunk from
>>> somewhere in the front along with a noticable difference in speed every
>>> time the clunk happens - the car slows down a little.
>>
>> It does sound like the front propshaft UJs, I had similar from the
>> rear on my Defender (not sure if Disco is the same), clunks at low
>> speed, a vibration at higher speed. It's easy to check though, get
>> under there with a small breaker bar and see if you can move the UJs
>> around. However if a garage didn't spot the UJs as being the source
>> of the problem then it might not be, as it's an easy problem to spot
>> and I'd like to think they wouldn't be *that* daft....
>>
>> Note that you can also get this if the UJs have been replaced and not
>> put back in with the correct phasing, at least on the Defender. Have
>> you had UJs or prop shaft messed with recently?
>>
>
>Not had them messed with, but the car's on a 2" lift kit, so they're
>probably under more stress than they should be
>
>I didn't actually ask the garage to investigate that, I knew I had a problem
>with the CVJs and they fixed that problem.

sometimes propshaft UJs are only really obvious once the shaft's off and in
yer hand, so to speak.

Common problem though, front ones suffer more due to shorter shaft, I
suspect.
--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
"Festina Lente" (Hasten slowly) Suetonius (c.70-c.140) Augustus, 25

 

P

Paul S. Brown

Guest

• Jan 14, 2005

• #5

Austin Shackles wrote:

> On or around Thu, 13 Jan 2005 22:38:48 GMT, "Paul S. Brown"

>>
>>Not had them messed with, but the car's on a 2" lift kit, so they're
>>probably under more stress than they should be
>>
>>I didn't actually ask the garage to investigate that, I knew I had a
>>problem with the CVJs and they fixed that problem.
>
> sometimes propshaft UJs are only really obvious once the shaft's off and
> in yer hand, so to speak.
>
> Common problem though, front ones suffer more due to shorter shaft, I
> suspect.


Had it checked today. No problem at all with any of the UJs but considerable
play in the whole transmission.

The blokes who looked at it reckon the T-box is worn. Their recommendation
"Don't bother fixing it before it dies, just let it explode and then
replace it"

P.

 

I

Ian Rawlings

Guest

• Jan 14, 2005

• #6

On 2005-01-14, Paul S. Brown <[email protected]> wrote:

> The blokes who looked at it reckon the T-box is worn. Their
> recommendation "Don't bother fixing it before it dies, just let it
> explode and then replace it"

I was going to say "Hmm I hope it doesn't happen while you're moving"
but then it's hardly likely to when you're stationary is it! Doh ;-)

--
For every expert, there is an equal but opposite expert

 

S

StaffBull

Guest

• Jan 14, 2005

• #7

Mmm! having the transfer lock up - 2 tonnes at 60 mph! Scary
"Paul S. Brown" <[email protected]> wrote in message
news:[email protected]...
> Austin Shackles wrote:
>
>> On or around Thu, 13 Jan 2005 22:38:48 GMT, "Paul S. Brown"
>
>>>
>>>Not had them messed with, but the car's on a 2" lift kit, so they're
>>>probably under more stress than they should be
>>>
>>>I didn't actually ask the garage to investigate that, I knew I had a
>>>problem with the CVJs and they fixed that problem.
>>
>> sometimes propshaft UJs are only really obvious once the shaft's off and
>> in yer hand, so to speak.
>>
>> Common problem though, front ones suffer more due to shorter shaft, I
>> suspect.
>
>
> Had it checked today. No problem at all with any of the UJs but
> considerable
> play in the whole transmission.
>
> The blokes who looked at it reckon the T-box is worn. Their recommendation
> "Don't bother fixing it before it dies, just let it explode and then
> replace it"
>
> P.

 

D

Dougal

Guest

• Jan 14, 2005

• #8

> Mmm! having the transfer lock up - 2 tonnes at 60 mph! Scary

Goodness, we've got a load of wimps in this group!

It's rather like the weather forecasts these days .... unless it's bone
dry - but not too hot in case the road is 'melting' or the sun's shining
too brightly - everything is dangerous / treacherous etc..

Come on, live a bit !!

 

I

Ian Rawlings

Guest

• Jan 14, 2005

• #9

On 2005-01-14, Dougal <DougalAThiskennel.free-online.co.uk> wrote:

> Come on, live a bit !!

Yes, you're right! Come on fellas, cast off those seatbelts and roam free!

I've just thought of a brilliant way to increase fuel economy --
remove your brakes!

Freedom!

--
For every expert, there is an equal but opposite expert

 

A

Austin Shackles

Guest

• Jan 14, 2005

• #10

On or around Fri, 14 Jan 2005 20:24:34 -0000, "StaffBull"
<[email protected]> enlightened us thusly:

>Mmm! having the transfer lock up - 2 tonnes at 60 mph! Scary

>"Paul S. Brown" <[email protected]> wrote in message
>news:[email protected]...
>> The blokes who looked at it reckon the T-box is worn. Their recommendation
>> "Don't bother fixing it before it dies, just let it explode and then
>> replace it"

'snot likely to lock up if the problem is the typical shaft wear one. It
might however shear the splines and leave you with no drive at all.

Mind, you should hear the noises mine makes. Must get around to contacting
a bloke I know who has an alleged good LT77.

--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
0123456789112345678921234567893123456789412345678951234567896123456789712345
1 weebl: What's this? | in recognition of the fun that is weebl and bob
2 bob: it a SigRuler! | check out the weebl and bob archive:
3 weebl: How Handy! | http://www.weebl.jolt.co.uk/archives.php

 

J

Jack Kerouac

Guest

• Jan 16, 2005

• #11

"Dougal" <DougalAThiskennel.free-online.co.uk> wrote in message
news:[email protected]...
>
> > Mmm! having the transfer lock up - 2 tonnes at 60 mph! Scary
>
> Goodness, we've got a load of wimps in this group!
>
> It's rather like the weather forecasts these days .... unless it's bone
> dry - but not too hot in case the road is 'melting' or the sun's shining
> too brightly - everything is dangerous / treacherous etc..
>
> Come on, live a bit !!
>

Now that made me laugh!