Vehicle & Technical > Defender

Does my diff lock work?

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JumboBeef:
Hello all,

About six months ago, I bought a 1993 110 TDi.  It has had two owners before me: first was an Airport (so I'm guessing it never really went off road) and the second owner used it more like a van, and never really went off road in it either.  So in 15 years it has had a really easy life.

I have never off roaded in it because I bought it for work....until a couple of weeks ago.  I had to cross a field (wet grass) and I got very stuck!  More mud than grass (did finally get out though).

Now, that was the first time I tried the diff lock.  The warning light didn't come on (and I haven't yet checked the bulb) and I'm convinced the diff wasn't locked.  I've tried it since on gravel/dirt/grass and I just think it is not working (we also have another 110 and the diff lock works perfectly on that one, so I know what I'm looking for).

Any ideas what might be wrong, and how to put it right?  The hi/lo works fine, gearbox is fine, everything else is good as well.

Thanks.

Range Rover Blues:
Perhaps the linkage is loose/bust/bent then and the input to the gearbox isn't moving, it's probably stuck fast after all these years.

trickydicky:
im having exactly the same problem a lockle mechanic told me to put deisel on it to brake down the old grease and free everythink up a bit i am going to try it this weekend ill let you know what happens

extreme90:
some times the selector fork inside the box siezes if it aint used

Bush Tucker Man:
If you can, jack up both wheels on the same side

Engage it (or try to), & leave main gearbox in neutral

If both wheels rotate when you turn one of them, it's locking

If only the hand-rotated wheel turns, it's not


Then investigate further!

Try this site for a few details (it's American, & mainly Discovery related, but the basic premise is the same)

http://home.twcny.rr.com/eeibooks/rover/discodifflock.htm

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