Vehicle & Technical > Discovery

Tips for DIFF LOCK, and other settings..

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Dustman:
HI, can anyone post up a few tips on how to and when use the DIFF lock and other settings on the Disco's?

Cheers

Mark

robbie:
The disco is permanent 4Wd so only has a high or low setting for the ratio. For normal road use high, when off road use low. The method of getting it into high/low does differ e little depending on whether you have a manual or auto. If manual, stop the car and depress the clutch, if auto, put into neutral, slow down to very slow, 1-2mph then move the ratio stick slowly.

Diff-Lock can be engaged whilst moving but should be less than 5mph, I orefer stop. Dont engage whilst the wheels are spinning as they will be going faster than 1 mph and WILL damage your box.

Diff Lock has been seldom used by me even when off road. I usually use low box unless I feel the wheels slipping. I then stop the vehicle or reverse, depending on how steep the slope is, select DiffLock and then away again....

Hope this helps

datalas:
Weeeeellll..


"Diff Lock should be engaged when traction is likely to be lost" :)

A Discovery is, by it's normal nature 1WD, as Thrasher will testify to.  As in *all* the power of the engine will be transfered by the differentials to the wheel with the least friction against it, and a proportion of that power to the other three accordingly.

Now, in mud, this can prove to be a problem, since what will happen is that you'll end up with one wheel spinning happily, and the other three doing very little.

The "diff lock" will allow you to transfer power in a 50 / 50 split to the front and rear axles.  Granted this won't make certain you'll get out of mud, but it can help.

So, as the manual says, if you lose traction, or are likely to lose traction.  Stop, engage the difflock (having engaged hi / low accordingly) and then set off.  When you have got past the bit you were worried about, you stop again, disengage difflock and then drive off again.   The light won't go off immediately since the diff needs a little bit of slip before it will disengage the lock.  Damp grass will usually do it.

Colin 009:
Wise words ther guys, :D

But  :lol:  Datalas wrote
--- Quote ---Damp grass will usually do it.

--- End quote ---


not much "Damp grass" where Dustman is. :lol:  :lol:

jnoshea:
Sometimes I find it difficult to get the transfer box and diff-lock to do anything. I can sometimes sit there for 2 or 3 minutes trying to move the lever, while at other times it works first time.  I find it hard to believe that this is wear on the box since the car was a motorway vehicle for years before I had it and probably never got put into low box let alone diff-lock.  Anyone else got this problem?

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