Wednesday, April 26, 2006 - 10:56 am, by: Will Adams(Draco)
I looked under the bonnet and discovered my Trans/Axle says A02B. Tell me I'm not dreaming. Is this definately LSD? Any other way I can check by looking at the diff?
Wednesday, April 26, 2006 - 11:43 am, by: Peter Nitschke(Pen)
Will, if just the one wheel spins, you should hear and feel it as the engine revs out higher without the car moving much. If both wheels spin, the back will probably start to slide to the left due to the camber of the road and you should hear and see the right hand rear as it squeals and smokes on the bitumen.
You only need to do it for a second or so, no need to sit there blasting away once you know what is happening. Also, if you then park and go back to have a look, you should easily be able to see if the drivers wheel left any marks or not.
There are other methods that require jacking the car up and having two people at the rear wheels, been documented elsewhere but I don't recall the procedure.
Wednesday, April 26, 2006 - 02:06 pm, by: Peter Nitschke(Pen)
Wrong. On a normal road with roughly equal traction at the back wheels a non LSD can spin both wheels. The whole idea of an LSD is to make a difference when you have significantly different traction levels between the two rear wheels.
Wednesday, April 26, 2006 - 02:43 pm, by: Peter Nitschke(Pen)
If only one wheel span and not both wheels, that sounds very much like a normal diff. Interesting that the wet wheel didn't spin though, or was it just not smoking?
The concept is, that if one wheel loses traction, the LSD then transfers power away from that wheel, to the other wheel (which has traction) to get the car moving.
A normal open diff just lets which ever wheel has less traction spin as much as it likes, with the result the car doesn't get pushed forward properly.
The only advantage of an open diff, is that with only one wheel spinning, you still have 3 wheels with traction and thus less chance of the back sliding out badly as it does with both wheels spinning.
Wednesday, April 26, 2006 - 02:53 pm, by: Will Adams(Draco)
Peter, I did it properly this time.
Drove the car to the same puddle (opposite the house you see).
Put right wheel in puddle and accelerated with the brake on again.
Stuck my head out of the window, and found the right wheel was spinning. I then also adjusted the mirrors to see my left wheel. Dug in and did a burnout and both wheels were spinning (tyre smoke from both sides of the tyres).
Wednesday, April 26, 2006 - 03:05 pm, by: Peter Nitschke(Pen)
OK, that is sounding more like you have a winner then
Which also explains why the carr pulled sideways in your first test. An open diff is more inclined to just sit there as 3 wheels are holding the car in place.
Wednesday, April 26, 2006 - 04:49 pm, by: Jeff Smith(Mozzie)
Yep I also found out on the easter bash that i have toyota LSD(A02B and stoked about it) but i wasn't shaw but it did feel like it when you kick it sideways it just drifted.But the old hilux days(normal diff).If you kicked it sideways i got just single(sometimes duel)tyre smoke\line no drift just burnout.