Vehicle & Technical > Discovery

rear diff wound up

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lurch_917:
 ive actuly seen a fitter jack the back up to change a tyer and the motor spun its self off the jack oops thats alot of wind up

wizard:
You want to get this sorted before you break something.
Have you had a look at the linkages on the transfer lever yet.
What position is the transfer lever in. It should be close to the drivers side and back.

wizard

ibruceuk:

--- Quote from: wizard on January 22, 2009, 03:34:04 ---I dont know how much "windup" is required to cause any damage.
To test this we need a volunteer to engage diff lock and  record the mileage on tarmac before something brakes. (only joking)

--- End quote ---

Well interesting you should say this!

When I went to look at a new Disco, one unscrupulous seller on a farm was selling a very clean R plate disco.  It drove brilliantly round the farm and was very tidy for the money.  The difflock lever would move side to side (i.e. not connected)  he said it was just disconnected as all police vehicles are disconnected.

He was very very rulctant for me to take it on road, his farm was huge, and he kept going on about not insured etc.  I sorted out my insurance to cover it as I insisted I wanted to see what it was like at a reasonable speed.

To cut a long story short, it was jammed in Difflock and he had disconnected the light and lever.  It lasted half a mile on tarmac before BIG band as the front prop snapped.  Needless to say I didn't buy it and he was most unimpressed!

So to answer your question, half a mile!

thermidorthelobster:
From reading this thread you could be forgiven for concluding that by driving around in diff lock you get wind-up which you need to somehow unwind many miles later.

The wind-up either (a) breaks something if you leave diff lock in and drive around on tarmac, which you will notice; or (b) unwinds just fine thanks when you disengage diff lock, or when you drive backwards and forwards a bit whilst trying to disengage diff lock.

It's not like screwing something in and then it stays there until you unscrew it again.

tack43:
You can also lose the wind up with wheel slippage as ibruceuk found out while driving on loose surfaces on that farm!

Rich

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