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Eduardo

Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2110

2007 Defender 110 Puma 2.4 SW Stornoway Grey

Diff lock dissengaged in rough roads

I would like to know if it is normal.

This happens to us from new but until yesterday I didnt paid too much attention (the problem dissapears for a long time but here is again

)

When we engage the diff lock appear to be very soft: we didnt heard any noise or click or something that announce that the diff is locked, just the diff lock ligth on. The lever come back a little bit but nothing more.

The diff lock light appears and remains, so be thougth that the diff is locked.

But in rougth and bumpy roads at moderate speeds (40 - 60 km/hr) the diff lock dissengages (at least the diff lock light dissapears) we didnt heard any noise that shows that the diff are dissengage and also the lever are in the original position.

That happens several times in a ride.

Any ideas about if it is normal or not ?

Thanks! Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

2nd Mar 2009 12:51pm

alantd

Member Since: 14 Dec 2008
Location: Northamptonshire
Posts: 1513

2007 Defender 110 Puma 2.4 XS CSW Tonga Green

That's interesting - I've had the same concern. My old td5 used to let you know when you'd engaged ("thunk") although disengaging was a little more subtle.

I wondered whether it was the sensor that was moving around. It is quite hard to test on mine because of the traction control. One that started out as a 2.4 TDCi 110 XS
+ New Defender 110 First Edition

2nd Mar 2009 1:10pm

110SEB

Member Since: 29 Jan 2009
Location: Essex, England
Posts: 1444

2007 Defender 110 Puma 2.4 XS CSW Java Black

This is interesting reading.

I have never had any problems with difflock on our TdCi 110. Do make sure that you're not driving too fast to have difflock on, or it will bang out.

On ours engaging it is positive and you know you've done it, the lever is firm and it won't just float into position. I agree disengaging it is less obvious to feel, but still it should be noticeable. Once you disengage the lever have you tried driving gently in reverse for a meter or two and then forwards gently - this usually releases any wind up of the gearing in Difflock.

Sorry if i'm stating the obvious or if this doesn't help.

2nd Mar 2009 4:06pm

Eduardo

Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2110

110SEB.

Thanks for all. Allways is good to check the basis.

We have been driving with the diff lock engaged at higher speeds than that: 70-80 km/hr in good gravel roads without any problem. The problems appear at almost any speed between 30 - 60 km/hr in bumpy roads.

In our case we do not have any indication (except the ligth) that indicates that the diff is locked (did you feel a noise or a change in the driving conditions?). Lever looks firmly but as I said when you engage return a little bit.
We have been applied all the force to engage (with the cluch well depressed) to see if it is a brute force problem, but allways is the same

We also tried with putting reverse without success.

I think will be a matter for the dealers (again)

Thanks again!

Eduardo Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

2nd Mar 2009 5:47pm

MK

Member Since: 28 Aug 2008
Location: Santiago
Posts: 2414

2007 Defender 110 Puma 2.4 SW Chawton White

Once the light goes off on those situations, slow down and try to make a tight circle. Tires should slip/brake on gravel as all wheels have different speed Puma 110" SW

.............................................................
Earth first. Other planets later

2nd Mar 2009 6:50pm

foz.in.oz

Member Since: 31 Jul 2008
Location: Gladstone, QLD
Posts: 64

Eduardo,

A friend of mine had exactly the same problem as you are experiencing. He went to the dealer and they found that the diff lock lever linkages were not adjusted correctly. Now it is fine. Land Rovers are an addiction. Toyotas are for quitters.

WWW.CQLROC.ORG

2nd Mar 2009 9:07pm

Sonic3d

Member Since: 28 Jan 2008
Location: Ross on Wye
Posts: 1505

2010 Defender 110 Puma 2.4 XS DCPU Stornoway Grey

Why are you using the diff lock at such high speeds? i only engage it just before a difficult section of a track when i expect it to get cross axled and lose traction

2nd Mar 2009 9:23pm

Eduardo

Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2110

Hi Sonic3d.

In general we found that with the diff locked the control is better than with the lock out.
Anything bad with that?

Cheers! Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

3rd Mar 2009 12:44am

rmb3218

Member Since: 06 May 2008
Location: yackandandah
Posts: 2

This is one of the many problems that I had with my 07 Defender. It was never rectified. The reason that I used diff lock was at 40/50km was on sandy tracks. I no longer have the Defender.

3rd Mar 2009 10:31am

Glynparry25

Member Since: 16 Feb 2009
Location: Miserable Midlands
Posts: 3015

2009 Defender 110 Puma 2.4 XS DCPU Tonga Green

Eduardo wrote:
Hi Sonic3d.

In general we found that with the diff locked the control is better than with the lock out.
Anything bad with that?

Cheers!

The handling will be better, but at the same time you are putting soo much strain on your transmission. You will be getting 'wind up' which will cause prop/drive shafts to break, and if not that reduce the life of bearings/ gears etc.

In the Army they put huge stickers on the dash of all the vehicles stating that the use of Diff lock should only be used when loss of traction is expected (e.g. you think you aren't getting out the other side of a muddy patch). A good general rule ius that if you are in high range you sahouldn't be in diff lock.

Glyn

3rd Mar 2009 1:22pm

Eduardo

Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2110

Glynparry.

Thank for the advice. From the mechanic point of view you have a very good point.
I was only follow the instruction manual (that don't tell anything about that, for this reason I believed that the car is prepared to absorb this effort).

I will be more carefully when I will engage the diff lock.

But despite that still I have the problem. May be a trip to the dealer will be good

Cheers! Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

3rd Mar 2009 2:09pm

Sonic3d

Member Since: 28 Jan 2008
Location: Ross on Wye
Posts: 1505

Eduardo wrote:
Hi Sonic3d.

In general we found that with the diff locked the control is better than with the lock out.
Anything bad with that?

Cheers!

Hello Eduardo

Glynparry25 beat me to it

I would have to agree with what Glyn said

3rd Mar 2009 2:15pm

Glynparry25

Member Since: 16 Feb 2009
Location: Miserable Midlands
Posts: 3015

I woul say a trip to the dealer is best, but as mentioned above it should just be a simple adjustment of the linkage.

Glyn

3rd Mar 2009 2:17pm

Eduardo

Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2110

Thanks to all

I hope that will be only an adjustment matter.

Regards Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

3rd Mar 2009 3:46pm

foz.in.oz

Member Since: 31 Jul 2008
Location: Gladstone, QLD
Posts: 64

Sonic3d wrote:
Why are you using the diff lock at such high speeds? i only engage it just before a difficult section of a track when i expect it to get cross axled and lose traction

I know plenty of people over here that engage difflock and travel at speeds upto 100kmh. It all depends on what surface you are on. Some of the bush tracks out here are that loose and bumpy that you loose traction quite often. I regularly see the traction control light come on. Wind up of transmission isn't generally a problem.

I however prefer to leave the centre diff unlocked as it is easier to do power slides

Land Rovers are an addiction. Toyotas are for quitters.

WWW.CQLROC.ORG

3rd Mar 2009 9:14pm

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