Diff lock engages by itself while driving

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Arierep

Active Member
Posts
127
Hello,

To my surprise, I've found at the end of my last two or three drives that I had the diff lock engaged. I confirmed at the beginning that the lock was off, so it seems that it jumped into the "ON" position by itself.

The car is a Defender 90 300tdi

Has anyone ever had this happening?
Seems really weird, as most of the reported issues seem to be from the lock jumping from the lock position an not into it.

Thanks
 
Is the difflock lever moving too? I'd start by checking the linkages aren't bent or too loose ... not that they're tight to start with!
 
Nope, it is not the light I am talking about here, that thing barelly works even when I want it.
There's actual lever movement.

Is there any schemathic of the diff lock/lever linkage?
Thanks
 
Nope, it is not the light I am talking about here, that thing barelly works even when I want it.
There's actual lever movement.

Is there any schemathic of the diff lock/lever linkage?
Thanks

take the tunnel off and look, diff lock linkage has an adjustable pivot and needs setting so that it goes fully in and fully out ,youll get and idea by putting a 13mm spanner on spigot nut where linkage joins t/box and turning clock wise engages lock anti clockwise out, linkage uses 2 plastic bushes per pin theses often wear or are missing
 
So this morning I went for a little investigation.

Jacked one of the rear wheels and tested the diff lock. Turns out the the position the lever jumps to while driving is not locking the diff.

Went under the car to check the linkage and found that the said position is kind of an intermediate position, with not lock engaging at all. Weird...

Anyway, the true locking position is crisp and is action is easly tested
 
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