| Author | Message | ||
     Eric Olsen (Eric_olsen) New Member Username: Eric_olsen Post Number: 23 Registered: 02-2003 |
I installed front /rear ARB lockers, the ETC will still come on a little. I thought the ETC would only sense wheel spin from side to side. Does it also sense from front to rear?? | ||
| Will Bobbitt (Rkores) Senior Member Username: Rkores Post Number: 302 Registered: 09-2002 |
Yes, It senses front to rear. It should not come on if you have you centre differential locked. Will | ||
| michael burt (Mikeyb) Senior Member Username: Mikeyb Post Number: 336 Registered: 03-2002 |
etc allegedly checks each wheels speed and if one or more does not match, it will apply the brake to that wheel to bring it into line with the others. | ||
| david summers (Texmoto) Member Username: Texmoto Post Number: 63 Registered: 12-2002 |
ETC will definately come on with the CDL applied, as long as the center diff is locked AFTER the the engine is turned on. | ||
| Eric Olsen (Eric_olsen) New Member Username: Eric_olsen Post Number: 26 Registered: 02-2003 |
Glad to hear it senses front to rear, I was worried I screwed up my locker install | ||
| traveltoad (Traveltoad) Member Username: Traveltoad Post Number: 56 Registered: 11-2002 |
Eric, do you have a CDL? Or are you just running front and rear lockers? | ||
| Eric Olsen (Eric_olsen) New Member Username: Eric_olsen Post Number: 27 Registered: 02-2003 |
I do have the CDL, I will be getting the CDL kit soon. I burned the hell out of my arm this weekend doing it with the wrench. When I removed my stock diffs the spider gears were in terrible shape, I believe the ETC puts too much pressure on them. I am now kind of weary of it, I am afraid it may do some damage to the ARB's. When the ETC comes while the lockers are engaged, is it applying breaking to the front or rear and forcing the transfer case to absorb all that front to rear torque?? did that make sense? | ||
| Nate Jedinak (Ducati) New Member Username: Ducati Post Number: 38 Registered: 12-2002 |
If you're really all locked UP, ETC shouldn't come on at all. It wouldn't "see" any difference in speed between front and rear, because you locked the TCase. And it wouldn't sense any side to side difference, because the ARB's were locked. Are you certain you got the Tcase locked? | ||
| JSTALS (Bleedgreen) New Member Username: Bleedgreen Post Number: 2 Registered: 07-2003 |
If any wheel starts to spin, traction control pulses the brake of the spinning wheel to help transfer some of the engine's power across the axle to the wheel with more grip. If the system detects that one of the wheels on one of the axles increases in speed, or that both wheels on the axle increase in speed, when compared with the other axle, then the brakes are momentarily applied on the offending wheel. So, it senses side to side on each axle and axle to axle. Therefore, Electronic Traction Control does in fact work with a centre diff locked. However, it will fuction differently since both axles will be travelling at the same speed. In fact, 2004 Disco will have factory Diff Lock again. | ||
| One_Bad_Metro (Koby) Senior Member Username: Koby Post Number: 425 Registered: 02-2002 |
Nate is right. If all three diffs (front, center and rear) are locked, then there will be no differentiation between right or left side and no differentiation between front and rear driveshafts. Without any wheel speed differentiation, there is no need for ETC. | ||
| Eric Olsen (Eric_olsen) New Member Username: Eric_olsen Post Number: 29 Registered: 02-2003 |
Nate, I did not have my CDL engaged. I was just concerned that the ETC would come on at all. I was under the impression that it would only sense side to side not front to rear. I will purchase a CDL kit and engage it everytime to avoid the ETC. | ||
| James (Jimmyg) Senior Member Username: Jimmyg Post Number: 350 Registered: 10-2002 |
From what I've heard, ETC eats spider gears for breakfast. ETC BLOWS | ||
| Nate Jedinak (Ducati) New Member Username: Ducati Post Number: 39 Registered: 12-2002 |
Eric: Gotcha, then yes, ETC will try to move power from one axle to the other. JSTALS, with all 3 diffs locked ETC may be "working" but it isn't going to be doing anything as Koby expanded... With centre diff only locked it will try to apportion power between the left and right, but will never see a difference between front and rear and will therefore not do anything from axle to axle. | ||
| Michael Noe (Noee) Senior Member Username: Noee Post Number: 682 Registered: 03-2002 |
I'm pulling my diffs out in a coupla weeks to replace with lockers/gears, I'm afraid of what I'll find in there what with all the metal that came out in the last fluid change. It appears that the stock diff is not designed for extended reliability with ETC under even moderate conditions. | ||
| Eric Olsen (Eric_olsen) New Member Username: Eric_olsen Post Number: 38 Registered: 02-2003 |
If the ETC is sensing wheel spin from front to rear, then it would be forcing all that torque through the transfer case. I wonder if it will have the same affect on these gears as it does on the spider gears |
