 | Home > Technical > Traction control or diff. locks? |
 
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17334   
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What makes you think it would "knacker the electrics"? How on earth could it? If you have an axle diff locked, the two wheels cannot turn at different speeds and hence cannot initiate the TC. It is conceivably possible but incredibly unlikely that you might manage to get the locked axle spinning faster than the unlocked one (but this would involve both incompetence and freak circumstances) and even then the TC would simply brake both wheels. |
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10th Mar 2014 10:48am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17334
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They do. Whether it is the optimal way to operate a difflock or not is debatable and subjective, with many arguments for and against. Overall it has few - if any - advantages. |
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10th Mar 2014 10:52am |
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| mse Member Since: 06 Apr 2008 Location: UK Posts: 5035 
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brilliant post resurrection
 Mike |
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10th Mar 2014 5:44pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8001  
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yes you can, TC wont do anything on the axle with it enganged in. Cheers
James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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13th Mar 2014 12:39pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8001
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dont volvo portal axles run vacuums too? Cheers James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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13th Mar 2014 12:40pm |
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| LandieG Member Since: 13 Mar 2013 Location: nr Caerphilly Posts: 91 |
Not sure, but thought I'd ask the wise, I assumed that TC would be smart enough to deal with a locker!
Ah, so it could, just maybe…?!
That's more reassuring!! Thanks for the info guys, happier now! |
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20th Mar 2014 12:16am |
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| LandieG Member Since: 13 Mar 2013 Location: nr Caerphilly Posts: 91 |
PS just found that the Td5 I'm looking at is TC-less anyways…
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20th Mar 2014 12:19am |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039  
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So Detroit in the rear and thru-trac in the front axle and off you go.
Or if you want to spend money to get a little better result use arb or simular in both axes. With both you need stronger half shaft. I have the detroit - thru-trac setup and I love it. I still use the standard half shafts in the front axles with Simex tyres and till now the keep up with it.  Click image to enlarge Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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20th Mar 2014 10:44am |
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| johnszs Member Since: 16 Aug 2010 Location: Hereford Posts: 459 
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Ashcroft shafts and flanges would also be on my list, fit and forget plus if you break a shaft david will send replacements foc, they have a 5 year warrenty too 2004 TD5 Defender 90 xs station wagon
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20th Mar 2014 8:15pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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Click image to enlarge Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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20th Mar 2014 10:26pm |
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| dozerman Member Since: 09 Nov 2014 Location: Cheshire Posts: 101 
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Does the tc work in low range with the diff locked on a new (64 plate) Defender? I assumed that it would, but got quite stuck towing a trailer across a wet field today - there was lots of backwards and forwards action with plenty of right foot but no sign of the tc kicking in. As a last resort I took it out of diff lock and low and behold, tc light started flashing (driving style the same - rather aggressive) and out she drove. All I can assume is that diff lock disengages tc for some reason, but that seems daft to me. Can anyone enlighten me?
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10th Dec 2014 5:43pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8001
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TC is active with difflock or should be with your vehicle yes.
were the wheels on each axle turning at the same speed with diff lock in? if so TC wont do anything. Cheers James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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10th Dec 2014 7:41pm |
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| dozerman Member Since: 09 Nov 2014 Location: Cheshire Posts: 101
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To be honest I don't know as I couldn't actually see them but it appears (from the tracks left) that they were all spinning - I'd be amazed if they were all turning at an equal enough speed to not trigger the tc though? If they were all spinning equally I would have thought that they would have generated enough drive to get unstuck - it wasn't until the diff lock was disengaged and the tc started working that the Landy pulled itself through. If it is supposed to work irrespective of the centre diff then it must have been an equal wheel-speed spin - I just find that a little surprising (this was flat out in low third).
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10th Dec 2014 11:58pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8001
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it does work irrespective of diff lock yes.
if they were all spinning at the same speed you would of thought it would drive out anyway. cross axle it with diff lock in and try the TC Cheers James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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11th Dec 2014 12:30pm |
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