Vehicle & Technical > Discovery

Diff lock linkage fine but no diff lock?

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narked:
Heh, found out that my diff lock is definately not working yesterday. Got myself stuck in mud on the building site, with about 3 tons of trailer and concrete blocks hanging off the towbar. Ended up with good old 1 wheel drive. Exactly the same with the lever over to difflock. Ah well. Once we struggled like idiots to get the trailer unhitched, the cheapo Kumho Road Venture ATs coped quite well getting just the Disco out!

Will try to get underneath and try to engage it with a socket over the weekend, and possibly fit the extended breathers whilst I'm down there.

Tyke:
Centre diff on LR's are not the cure all . . . . get two opposed corners spinning together and your stuck anyway . . . . if that's happening regular I'd be looking at driving style, tyres, or consider getting some 'proper' lockers fitted . . .  :roll:

skip:
I'm not going to be seriously froadin mine but as long as it's on there it should work.

I might need it when I go out onsite for work or whatever :D

Tyke:
Agreed mate. If it's not working then it needs fixing.

Another common problem is that the shaft that the selector fork attaches to is secured to the fork by a small grub screw. This sometimes losess its grip and allows the fork to slide without moving the shaft.

It's located in an oblong housing on top of the transfer box. On the defender it's easy to get at by just removing the floor from the cab. The disco is little more tricky. You have to dismantle the console and you may have to drill out the rivets holding the gear lever/transfer lever cover plates to the transmission tunnel before you can get to it.

For my money, it sounds like that could be your problem, especially if the lever feels like it's moving into the right position. If was simlpy stuck, like a lot are when they don't get used too often a bit of easing oil and brute force normally cures the problem.

Good luck with it fella  :wink:

skip:
Well today I had the opportunity to drive the disco over a field so stuck it Low and diff lock and started driving, about 60yds across the light comes on. Great me thinks, untill i start playing with it and find still no diff lock.

Also on the way home the light stayed on for about 15 miles down the Motorway :? wierd.

I vow to sort this one way or the other! so there! :lol:

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