difflocker issue? Help!!!!!!!

[Ben7]

G'day Guys

So i've just taken my recently purchased 130 defender out in the sand dunes for the first time, got my self in a little bit of trouble so i engaged the standard diff locks and nothing happened still only two wheels spinning. Had to get snached out by a patrol, embarrassing haha

its a 2005 model the difflock light on the dash was definitely on but like i said the diffs were not locked.

any help would be much appreciated?

thanks in advance

[rovercare]

G'day Guys

So i've just taken my recently purchased 130 defender out in the sand dunes for the first time, got my self in a little bit of trouble so i engaged the standard diff locks and nothing happened still only two wheels spinning. Had to get snached out by a patrol, embarrassing haha

its a 2005 model the difflock light on the dash was definitely on but like i said the diffs were not locked.

any help would be much appreciated?

thanks in advance

Its only a centre diff lock, it has a centre differential that allows constant 4wd without wind up, then lock it in the loose stuff, PRIOR to being in the poo

Not front and rear diff locks, few more dollars to spend to have them

[ugu80]

One front wheel and one rear wheel without traction and you're going nowhere, even with the centre diff locked. I put a Detroit (No Spin) in the rear of my 130 and was amazed at the difference. That's about the cheapest way to go for axle diff locks. The 'Lokka' is cheaper (and nastier in operation) but, when I was looking anyway, they didn't make one for the Defender.

Another way, there is a cheap Chinese 'maxtrax' on ebay. Should do the trick getting you going on sand.

[Ben7]

ok this is a little embarrassing so it doesn't have difflocks?

so the car is always constant 4WD right, then when you push the lever straight down this engages 4WD low. So when you go to the left and forward, what does this engage and how does it differ from 4WD low?

sorry for the stupid question?

[rovercare]

ok this is a little embarrassing so it doesn't have difflocks?

so the car is always constant 4WD right, then when you push the lever straight down this engages 4WD low. So when you go to the left and forward, what does this engage and how does it differ from 4WD low?

sorry for the stupid question?

2 functions of the transfer case

1. high and low ratio

2. centre diff locked and unlocked,

You can have either/or seperately

No, it doesn't have FRONT and REAR diff locks, it has a CENTRE diff lock

[Ben7]

so does this pretty well explain it for a defender as well?
If so while in sand i could have had it in centre difflock the whole time and would of most likely prevented myself from getting stuck


In normal road mode the drive is probably 70/30 or 80/20 or whtever to the rear/front wheels. This allows the vehicle to drive around corners without winding up.
With the centre diff locked the drive is split 50/50 so in essence the vehicle is now no different to a part time 4wd. Whether the diff is locked or not if you have diagonally opposed wheels off the ground or slipping then you could have no drive at all. in other words your 4wd just became a no wheel drive because of the wheels spinning.

[vnx205]

Another way of explaining it:

On a surface with a lot of traction, like bitumen, you need a diff between the front and back to do the same sort of job as the diff in the front axle and the back axle. When you go around a corner one wheel need to turn faster than the other one on the same axle. When you go around a corner there is also a slight difference between the speed at which the front wheels have to turn compared with the back. The centre diff allows that to happen so that nothing gets damaged on bitumen roads.

On a surface with less traction, like loose dirt, the tyres all tend to slip a little bit anyway, so there is no need for a diff between the front and back axles. When it gets even more slippery, it is an advantage to lock the diff between the front and back axles.

With no diff lock in between the front and the back, you could be stopped by having no traction at all on just one wheel. With that centre diff locked, you will only be stopped if you lose traction on at least one front wheel and at least one back wheel.

As others have said, you have a centre diff lock, You don't have a rear axle diff lock or a front axle diff lock unless they have been fitted as an aftermarket accessory.

[Ben7]

thanks guys, i totally understand now

sorry for the time waster of a question

with all that said it went pretty well in the dunes then hence me not having it in the right gear, went everywhere a new patrol went and he was actually in 4WD not the 20/80% like me whoops

thanks again

[ugu80]

With the centre diff locked the drive is split 50/50 so in essence the vehicle is now no different to a part time 4wd. Whether the diff is locked or not if you have diagonally opposed wheels off the ground or slipping then you could have no drive at all. in other words your 4wd just became a no wheel drive because of the wheels spinning.

Spot on Ben. I think you got confused with cross axle diff locks which locks the left/right wheels on the same axle, a la Detroit, Air Lockers, Maxi Drive, E lockers, etc. These are effective, but can be very expensive. Best way out is a shovel, sweat and tyre pressures (an air compressor is very handy, if you don't already have one).

[Tombie]

Ben

It's not torque biased.. Eg no 80/20 split.

All being equal it's 50/50 until something slips!!!

[IGL002]

With diagonally opposed wheels in the air, does traction control then become the poor mans diff lock?

Iglooist

[n plus one]

With diagonally opposed wheels in the air, does traction control then become the poor mans diff lock?

Iglooist

Yep, assuming your model Defender has it - the TC applies the brake on the spinning wheel, transfering drive back to the wheel with traction.

Only problem is that you have to spin the wheels before it works - i.e. reactive NOT proactive.

Having said that, it's a lot better than nothing and I think I'll only fit a rear locker to my Puma and let the TC deal with the front.

[chook73]

Let it be known I dont like ARB, everything they have touched on my vehicle has fallen to pieces or had to be fixed in some manner and I would not recommend letting them touch anything you want to actually work.

Having said that this is a good video to demonstrate the difference between diff lock and traction control by 4wd action

Air Locker vs LSD vs Traction Control Part 2 - YouTube (http://www.youtube.com/watch?v=YNFacsKnswM)

Regards
Iain

[Psimpson7]

130 doesn't have traction control either!

[camo1221]

Hey guys just wondering......... Regarding the MT82, if you move in to centre lock position from high range position does the box stay in high range? Or is the centre diff lock only available in low range?

[chook73]

Centre diff lock is available in high and low range.......

Regards
Iain