lsd trouble

[turbo triton]

just wondering if any one else with a late mk triton has had any lsd troubles as mine doesnt work any more but my dealer tells me that theres nothing wrong with it. any help would be great

[trity]

what makes you think it isn't working? you can't feel it working? has anyone spotted you and seen it working?

try getting yourself in a hairy spot and click the handbrake on 2 notches this will load up the lsd and you should feel it pull through

[MadPaj]

i know this is a bit bogan, but still a bit fun, just find a patch of grass and go for it, if ya leave two marks in the grass your lsd is working

and open diff will spin one wheel

also you have to remeber that an lsd is only 'limited' as it says i will help off road but in most case wont help you if you have one wheel in the air

X2 to what trity said about the handbrake-a good tip

[subi_man]

I like your suggestion better though madpaj :D:D:D

i know this is a bit bogan, but still a bit fun, just find a patch of grass and go for it, if ya leave two marks in the grass your lsd is working

[trity]

why didn't i think of that hahaha yeah but seriously that handbrake trick works and get two poeple watching from outside and they should see the lsd locking up

[Peter @ Aawen4x4]

Jack the axle up so the wheels are clear of the ground, put the g/box in neutral and the handbrake off. Then spin one of the airborne wheels in either direction. If the other side wheel spins the SAME way, you have a limited slip diff that is at least functioning!! If it was an open diff or an LSD that was totally cactus, it would spin the other side wheel the opposite way! Now get someone to try and hold the other wheel still! If they can stop the other side wheel easily while you are still turning your side wheel, and you can keep turning your side wheel once theirs is stopped, then your LSD has lost all its pre-load and is no longer working well enough to make any difference 4wheeling! If that's the case, you need to look at re-vitalising or re-building the diff! They can be shimmed to increase the pre-load, re-packed like Toyota Diffs just so you can do it again in 40,000 km or less, or cleaned like Nissan diffs, you just hafta ascertain what type of LSD you have!

Don't run Engine Oil Flush thru an 'organic compound' clutch pack type diff (like the Toyo's) and expect it to help! That engine oil flush will only work on Nissan style metal clutch plates where the wave spring plates are still in good nick but the driven plates are oil sediment covered! The Engine Oil Flush works well to clean the oil scum off!! It doesn't do much for organic clutch plate material tho!! Keep it off that!

Enjoy!

[turbo triton]

cheers for the replys lads, im a bit late here but just been working heaps an havent had a chance to get on the web but will try peters idea first then the others an let yas no the out come this week some time:thumb:

[turbo triton]

jacked the back up an spun the wheel, they both turn the same way but it only takes 1 finger pushing very lightly on the other wheel to stop it turning , does this mean that its buggerd cause the head mech at my dealer said that it was supposed to do that and that when the cars runinig the more revs u have the tighter the lsd gets ?:confused:

[greengo22]

my mk lsd works inrcedibly well can put one wheel on bitumen and other on gravel will not spin one on gravel even if i floor it in 1st almost like a locker had 2 now and both the same spoken too diff specialist he says mk diffs one of the best on market so if yours is not working like this get it looked at

[Patman]

The Triton uses the same LSD centre as the Pajeros - it will be a Torsen with a Viscous Coupling Unit (http://auto.howstuffworks.com/differential6.htm) (described as a Hybrid/VCU in the manuals and brochures) and wont react like a normal clutch / cone LSD to the tests described by Peter.

Unfortunately a torsen does require a little load on each wheel or it will simply work like an open centre. Thus the handbrake trick. Quote from the site: "However, if one set of wheels loses traction completely, the Torsen differential will be unable to supply any torque to the other set of wheels. The bias ratio determines how much torque can be transferred, and five times zero is zero."

The torsens in the Paj and Triton are reknowned for being both effective and tough with no clutches / cones to wear out. However the Viscous Coupliong Unit can be fried with lots and lots of constant spinning of an unloaded wheel, which they warn you about in the manuals.

Try the handbrake trick - used to work a treat in my NM Paj. Just dont tell MMA you did it (long story involving a stuffed transfer case).


Pat

edit - not sure if the MK had the torsen - I looked up the specs on the current ML. Paj's had torsens for a few years (until traction control) - not sure about the triton.

[Peter @ Aawen4x4]

Turbo Triton (& Patman) it sounds like you've at least identified the SORT of LSD that you have, and that is that it is a Torsen (or Torque Sensing) LSD! (don't use the Engine oil flush re-vitalising method!) And with both wheels in the air, spinning one and getting the other spinning the same way is a start. Stopping it spinning with one finger is exactly what a torque sensing diff will do, it actually sends torque from the driven (and therefore spinning) axle across to the non spinning axle according to the bias ratio of the diff, and since both wheels are in the air, the torque being sent to the driven wheel is ZERO, so regardless of what the bias ratio of the diff is, ZERO times ZERO equals ZERO!!

The handbrake technique should help, and it will certainly help identify if the diff is working, but so can jacking up ONE wheel at the rear and then with it still in 2WD trying to drive off the jack. Use a little hydraulic or screw type jack under the axle and oriented in the right manner to allow it to fall over without harming anything as it falls. The Patrol LSD does this pretty well, and the Triton SHOULD be able to do the same, maybe even (if it is in VGood condition) drive off the jack with one std house-brick in front of one front wheel!

You SURE that you don't want to fit a Detroit Locker??

[Patman]

But as you say, zero x zero = zero, so if one wheel is jacked up it will send all the torque out that wheel until a little load is applied either with the brake pedal or handbrake. With no load it will not drive off the jack.

If the Triton has the VCU then it applies a little load across the axles for you, but as mentioned it can be fried through constant spinning.

[Peter @ Aawen4x4]

But if you only jack up ONE side, and then use a little left foot braking to supply a level of torque sufficient to make it work, or even a notch or two of handbrake, then it SHOULD drive off the jack even against a normal red brick in front of one of the grounded wheels, unless it is a lesser LSD and not working!! You WON'T be spinning anything for more than a few seconds, unless it is the lesser diff, in which case it doesn't matter!

[Patman]

Hi Peter - that's what I mean :) I think we misunderstand each other but we are both saying the same thing.

Turbo Triton - sorry for the hijack - can you have a look at the manual and see if it says that it should have an LSD, or if it uses the term Hybrid? Is yours a cab-chasis? Looking at the Redbook specifications it doesnt suggest it will have one, but the GLS does. But then again Redbook are fairly unreliable with specs.

I

[turbo triton]

Hi Peter - that's what I mean :) I think we misunderstand each other but we are both saying the same thing.

Turbo Triton - sorry for the hijack - can you have a look at the manual and see if it says that it should have an LSD, or if it uses the term Hybrid? Is yours a cab-chasis? Looking at the Redbook specifications it doesnt suggest it will have one, but the GLS does. But then again Redbook are fairly unreliable with specs.

I
nah shes right the hijack was cool it helped explain it a bit better, and the diff is a hybrid , its a cab chasis glx and i also tried the handbrake a couple of clicks then a couple more and even a coupl more but did nothing, will try an jack up one side. Cheers again every one:thumb:

[turbo triton]

jacked one wheel up and tried to drive off, used hand brake and did nothing so then used brake an still nothing, bloody thing only done 26000

[pickle]

LSD was standard across the MK range and even your cab chasis should have one. Suggest it is still under warranty so maybe see Mitsubishi and get them to change the oil in the diff and see how it goes. Been doing any water crossings or bog holes lately?
Dave

[turbo triton]

LSD was standard across the MK range and even your cab chasis should have one. Suggest it is still under warranty so maybe see Mitsubishi and get them to change the oil in the diff and see how it goes. Been doing any water crossings or bog holes lately?
Dave
yeah done a few medium depth water crossings (just above chassie) but have extended my diff breathers above me tray, also done some mud driving. will take to dealer but they r gunna charge me to test it even if it is broke so just trying to make shore it is:(