Vehicle & Technical > Series Land Rovers

How do you un-wind a diff??

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stratie:

--- Quote from: stratie on September 23, 2008, 17:29:54 ---How or why is it poss for a diff to wind up? If i can understand how and why, then i might get a better understanding of whats up with Norms landie.
Any one know?

--- End quote ---
Anyone  :huh:

crazymac:
When a series vehicle is in "high" ratio it is running in rear wheel drive and any bends etc allow any transmission windup to dissapate. However when you engage Low ratio you link all 4 wheels together (similar to the difflock in modern landrovers) so on hard surfaces there is nowhere for the wind up to go which creates tension in the diffs.

At least, thats MY understanding!!

Lucy1978:
the easiest way to unwind a trasmission is to jack a wheel up on each axle, it will also help you diagnose any issues in the transmission. in 2wd the front wheel should spin freely along with the front prop. the back wheel (if the hanbrake is off and out of gear) should do the same, but it'll turn the transfer box too.
in 4wd, turn either wheel and it should turn both props and the the other jacked up wheel as they are physically linked by a dog clutch in the front section of the transfer box.

if that doesn't happen it could be the axle diffs knackered, jack up the back axle and check for normal operation and then the front, with the truck out of gear and the handbrake off (wheels chocked obviously)

stratie:
Nice one fella's, cheers  :D

hobbit:
As he had a diff change done on the front axle?

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