Unwinding a defender 90 transmission
- Thread starter bigirg
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As i understand it, you shouldn't need to as wheels will slip as necessary on loose surface.
If you drive on tarmac to get wind up, then lifting wheels should do it
If you drive on tarmac to get wind up, then lifting wheels should do it
Gmacz
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Permanent 4x4 should not give a problem in low. Just diff lock and you sometimes need to reverse to get back out of it.
jamesmartin
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you understand wrong,low range wont wind your transmission up,diff lock engaged on a firm surface might
Scooby22
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As James states above, low range just uses lower gearing, its the difflock that could wind up in some situations (driving on the road in difflock)
Forestrax4x4
Member
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- Cannock
When I drive off road I engage/dis-engage diff lock as needed. I tend to dis-engage when going around corners unless particularly required of course.
Never had a problem with wind up - not sure if my technique is correct but how I was taught?
Ditto with other comments - low box wont cause wind up unless it is a wind up LOL!!!
Never had a problem with wind up - not sure if my technique is correct but how I was taught?
Ditto with other comments - low box wont cause wind up unless it is a wind up LOL!!!
jamesmartin
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it wont disengage till theres no tension which isnt round a corner, moving the lever loads a spring either way so when you move lever its not necessarily engaging or disengaging lock,but it will as soon as the front output and diff splines align,so it doesnt matter when you actually disengage,it will only do it when it can
Last edited:
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If you can disengage the centre diff, then there's no wind up?
tottot
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If the diff light goes out straight away there was no wind up.
I recon folk over think this one, there are a lot of myths about wind up. Shure if you drive in diff lock for a bit on a hard surface you will get some wind up an you should be able to feel this through the steering wheel.
However you are very unlikely to do any damage to the transmission.
Problems happen if the diff is left locked or is stuck in lock for some time, the first thing would be extra tyre wear and then strain on the centre diff, uj's ect.
My diff lock can be stubborn to come out [ wear I recon ] and reverse is often the only answer to release it although dipping a wheel on to the grass verge will sometimes make it let go.
I recon folk over think this one, there are a lot of myths about wind up. Shure if you drive in diff lock for a bit on a hard surface you will get some wind up an you should be able to feel this through the steering wheel.
However you are very unlikely to do any damage to the transmission.
Problems happen if the diff is left locked or is stuck in lock for some time, the first thing would be extra tyre wear and then strain on the centre diff, uj's ect.
My diff lock can be stubborn to come out [ wear I recon ] and reverse is often the only answer to release it although dipping a wheel on to the grass verge will sometimes make it let go.
Rougharse Racing
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- The Grim North
Sometimes the diff lock will not disengage when you drive from a poor surface onto tarmac and the warning light remains illuminated.
This is because the transmission has wound up, if you continue to drive like this you might have problems as the diff lock is unlikely to release.
I find that the easiest way to sort this is to drive one wheel up the kerb if there is one, or if no kerb, put a wheel on the grass verge or any other loose surface and it will pop out.
If the diff-lock light goes out all is sorted.
This is because the transmission has wound up, if you continue to drive like this you might have problems as the diff lock is unlikely to release.
I find that the easiest way to sort this is to drive one wheel up the kerb if there is one, or if no kerb, put a wheel on the grass verge or any other loose surface and it will pop out.
If the diff-lock light goes out all is sorted.
agew
Active Member
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Seen photos of prop shaft with 1 1/2 turns down the length, so prob worth unwinding it if you can feel it’s tight and trying to go in a straight line on hard surface.... Just use it on loose stuff as God intended...? Cheers, A
