 | Home > Puma (Tdci) > Diff Lock Dashboard Light |
 
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| Roy5695 Member Since: 15 Feb 2014 Location: Cornwall Posts: 1123   
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I always thought if the light was on the diff lock is still engaged. It will be wound up and can't come out. I always try rocking backwards and forwards in first/reverse before driving normally to get it out.
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25th Feb 2016 10:27am |
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| Mash Member Since: 09 Feb 2015 Location: Guernsey Posts: 1674  
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Sometimes it does take a while for the light to go out, try reversing 5-10m that should sort it. 90 wolf - Jasmin http://www.defender2.net/forum/topic39408.html
90 V8 - Maggie http://www.defender2.net/forum/topic42564.html 110 TD5 - Buggsy http://www.defender2.net/forum/topic59029.html 52HG25 lightweight https://www.defender2.net/forum/topic72342.html D3 Hse - Fiona Capri 2l S - Anna Think I might have a problem............ |
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25th Feb 2016 10:35am |
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| Scoobeenut Member Since: 04 Mar 2015 Location: West London Posts: 310 
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Yes I have tried reversing a couple of times and this has worked. Do I have to assume that a wound up diff will never un wind on tarmac until you have reversed?
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25th Feb 2016 11:10am |
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| Mash Member Since: 09 Feb 2015 Location: Guernsey Posts: 1674
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It's not always a case of the diff still being on that keeps the light on you can be static engage and disengage the diff lock and the light can remain on. If you have wind up there are two ways to sort it, one being to jack up a single wheel station the other is to "bounce" a wheel off a kerb (both of these techniques are demonstrate in a military training film). You will only get wind up if you have the diff engaged when traversing solid roads where each wheel has constant traction. 90 wolf - Jasmin http://www.defender2.net/forum/topic39408.html
90 V8 - Maggie http://www.defender2.net/forum/topic42564.html 110 TD5 - Buggsy http://www.defender2.net/forum/topic59029.html 52HG25 lightweight https://www.defender2.net/forum/topic72342.html D3 Hse - Fiona Capri 2l S - Anna Think I might have a problem............ |
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25th Feb 2016 11:17am |
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| Scoobeenut Member Since: 04 Mar 2015 Location: West London Posts: 310
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Yes I guess this is the problem, because the light stays on there is no way of knowing if the diff has disengaged or is perhaps wound up, so you have to be wary about increasing speed until you can be sure. Just out of curiosity what is the effect on the diffs if you increase the speed past the recommended 40mph?
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25th Feb 2016 11:43am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17675 
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The light is operated by the position of the selector fork (in the transfer box) for the diflock. If the light is on, the diff is locked, irrespective of the position of the change lever.
If the light is off, the diff is unlocked, irrespective of the position of the change lever, unless of course the bulb or switch has failed. Delay in the light going out simply indicates that there is some load on the difflock that is preventing it from disegaging. This may be wind-up, or it may be that the internal mechanism is stiff through lack of use. |
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25th Feb 2016 12:02pm |
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| Cupboard Member Since: 21 Mar 2014 Location: Suffolk Posts: 2971 
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There's one lane near me that has a 45° slippery slope up to a T junction with the solid road at the top. I can't get up the slope without difflock engaged, but then I have to do a sharp left bend on the road. I haven't come up with a way round the problem there, I have to drive on the solid road with the difflock engaged and it won't dis-engage for a while. There are no kerbs to bounce off either, I'd just end up in a hedge or a ditch
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25th Feb 2016 2:00pm |
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| Happyoldgit Member Since: 14 Sep 2007 Location: Norfolk Posts: 3471 
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I don't go much on this bouncing off kerbs business, running one side on any non hard surface will help disipate any wind up and allow the difflock to disengage. Steve.
Owned numerous Land Rover vehicles of all shapes and sizes over the decades. Current Defender: A non tarts hand-bagged Puma 110 XS USW. [Insert something impressive here such as extensive list of previous Land Rovers or examples of your prestigeous and expensive items, trinkets, houses, bikes, vehicles etc] http://forums.lr4x4.com I used to be Miserable ...but now I'm ecstatic. |
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25th Feb 2016 2:11pm |
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