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Disco 2 : CDL won't disengage
Posted: Wed Jan 20, 2010 8:15 am
by OnPatrol
Hi there, I have the AMV CDL in my 2001 Disco2 V8. The Centre Diff Lock has remained locked after a quick jaunt in low range. I bypassed the CDL switch and I can hear the AMV motor running. Obviously there is power to the AMV CDL unit. Before I start ripping out the centre console it would be good to know if it is a fault in the AMV unit or the Landrover Centre Diff Lock. Anyone else had a similar problem?
Thanks.
Posted: Wed Jan 20, 2010 8:49 am
by Slunnie
I haven't heard of the LandRover CDL breaking like that, but I have heard of the AMV units failing in mud.
Posted: Wed Jan 20, 2010 12:35 pm
by OnPatrol
OK - I will assume that the LandRover CDL is OK, but if the AMV CDL motor still runs; will mud/dirt cause the AMV to fail at the link onto the LandRover CDL bolt?
By the way; once I remove the AMV CDL, which way is it to disengage (clockwise or anti-clockwise)?
thanks.
Posted: Wed Jan 20, 2010 12:57 pm
by Slunnie
Mate, to be honest I've never touched an AMV unit. As I understand it, it's based on a wiper unit or something like that.
Posted: Wed Jan 20, 2010 1:39 pm
by garrycol
Is it simply that there is transmission windup so will not unlock - have you tried moving the control to the unlock position and driving backwards a little way to "unwind" the transmission.
Garry
Posted: Wed Jan 20, 2010 2:53 pm
by OnPatrol
garrycol wrote:Is it simply that there is transmission windup so will not unlock - have you tried moving the control to the unlock position and driving backwards a little way to "unwind" the transmission.
Garry
Hi Garry, transmission wind up is not the problem. I went into limp home mode by removing the front prop shaft. I'm driving in 2WD at the moment.
My plan is to remove the centre console so that I can remove the AMV unit; then manually disengage the CDL and bolt in the front prop shaft; so it will be back to full time 4WD. I'll then see if I can get the AMV unit repaired or get another CDL that doesn't rely on electrical power.
Posted: Wed Jan 20, 2010 3:31 pm
by Slunnie
Most these days go to mechanical linkages. The general trend is towards the D2a lever and linkages for a factory finish and reliability.
Posted: Wed Jan 20, 2010 4:17 pm
by Petes
It is possible for the CDL to fail locked. It happened to my brothers Disco1 and it terminally failed locked, requiring a complete rebuild of the centre diff