karlak
|
| posted on 22/4/10 at 12:30 PM |
|
|
Limited Slip Differential.
If the car is fitted with a LSD, what should happen if you jack up the rear end and turn one of the rear wheels in a forward direction? Should the
other rear wheel turn forwards or backwards ?
Also, if I have got a LSD fitted, will there be an external way of telling what type/ratio it is?
cheers 
MK Indy - 2litre Duratec - Omex 600 - Jenvey throttle bodies - ETB DigiDash2
|
|
|
|
|
v8kid
|
| posted on 22/4/10 at 12:45 PM |
|
|
Depends on the type of lsd. Quaiffe types don't work unless there is a load on them
|
|
|
matt_claydon
|
| posted on 22/4/10 at 12:51 PM |
|
|
With a standard sierra viscous LSD (and the transmission in neutral) the other wheel will go the same way as the one you're turning.
If you leave it in gear it will be very stiff to turn, as you are fighting the LSD, and the other wheel will go the opposite direction.
|
|
|
A1
|
| posted on 22/4/10 at 12:58 PM |
|
|
if you get the diff code from it, you can look up diff codes on here and you should be able to find out the ratio
|
|
|
karlak
|
| posted on 22/4/10 at 01:28 PM |
|
|
I have looked for the code, but it is difficult to see as it has been painted - will have a closer look later.
It looked like it was a non-LSD type number Using the sticky in the engine/transmission section). However, when I turn the rear wheel forward, the
other goes forward as well. Would a non-LSD do this also ?
MK Indy - 2litre Duratec - Omex 600 - Jenvey throttle bodies - ETB DigiDash2
|
|
|
JoelP
|
| posted on 22/4/10 at 01:31 PM |
|
|
no, that sounds like an LSD to me.
|
|
|
coozer
|
| posted on 22/4/10 at 02:19 PM |
|
|
Cases are different between non & lsd variant diffs. Any pics.
1972 V8 Jago
1980 Z750
|
|
|
karlak
|
| posted on 22/4/10 at 02:34 PM |
|
|
quote:
Originally posted by coozer
Cases are different between non & lsd variant diffs. Any pics.
Does this help?
MK Indy - 2litre Duratec - Omex 600 - Jenvey throttle bodies - ETB DigiDash2
|
|
|
jacko
|
| posted on 22/4/10 at 03:35 PM |
|
|
Looks like my LSD if that helps
|
|
|
snakebelly
|
| posted on 22/4/10 at 07:11 PM |
|
|
unfortunately i dont think there is any way to gaurantee the internals just from a visual inspection, i think all lsd's had bolt on drive
shafts, unfortunately though not all bolt on driveshaft diffs were lsd's. That siad from your description of what happens when you spin a wheel
i would guess it is an lsd. if memory serves me correctly wasnt 3.62 the most common lsd ratio?
|
|
|
snapper
|
| posted on 22/4/10 at 07:34 PM |
|
|
From what I have learned there were only 2 common ratios. In 7 in diffs 3.6 for the 4x4 V6 and 3.9 for the 2.0L DOHC 4x4. The 7 1/2 inch was in the
2wd Cosworth and usually 3.64. Some early non traction control Granadas had LSD diffs
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
|
|
|
