LSD?

[anonymous-user]

Am I correct in thinking that if I put the car on axle stands out of gear and rotate a rear wheel, if the other rotates the same way then my car has a working LSD?

When in gear the wheels turn in opposite directions. Car is a 92 1.6 Eunos.

Also I've asked in a few places about the oil thats in the diff and got no answers - it's bright purple, opaque and quite thick - anyone know what it is?

[Mr MXT]

I can only ever remember the "fun" test. Revs up and dump the clutch.

2 black lines, LSD. 1 black line, no LSD.

[snotrag]

Yes thst would generally signify some type of locking diff.

However mx5s usually use Torsen type (TORque SENsing) diffs - which will not provide any lock up if one wheel is free to rotate. So this test won't work!

Easiest way to be 90% sure is by spec.

Rest of it by feel. Stick one wheel on grass and one on Tarmac and boot it to test.

[GravelBen]

A 92 1.6 would be a viscous rather than than Torsen, which don't limit that much slip and most will have reverted to open by that age anyway.

[skinny]

JimSuperSix said:

Am I correct in thinking that if I put the car on axle stands out of gear and rotate a rear wheel, if the other rotates the same way then my car has a working LSD?

When in gear the wheels turn in opposite directions. Car is a 92 1.6 Eunos.

Also I've asked in a few places about the oil thats in the diff and got no answers - it's bright purple, opaque and quite thick - anyone know what it is?

is it stiff to turn a wheel when you're in gear? if so you've got a viscous LSD - if it's easy then you've got an open diff.

[anonymous-user]

Yes the wheel was pretty hard to turn when in gear.

[anonymous-user]

So, anyone know what the bright purple stuff in the diff is?

[The Game]

Royal purple oil

[anonymous-user]

Cool, I'll pop into Halfords and ask for some of that then

[The Game]

I've never seen it in Halfords

http://www.royalpurple.co.uk/where-to-buy.html

[anonymous-user]

I thought you were joking

Is it acutally purple? Because the stuff in my diff looks exactly like this (and not cause its in a yellow tray as they have, just that colour bright opaque purple dripping out of the diff filler) :
http://www.flickr.com/photos/72179605@N00/85018753...

Edited by anonymous-user on Sunday 27th March 22:35

[MX-5 Lazza]

Someone I work with tried it in his Celica GT4 after being told it was the bees knees. Wasn't impressed. It's a true full synthetic rather than the usual mineral based synthetics you usually get.

[Richyvrlimited]

snotrag said:

Yes thst would generally signify some type of locking diff.

However mx5s usually use Torsen type (TORque SENsing) diffs - which will not provide any lock up if one wheel is free to rotate. So this test won't work!

Easiest way to be 90% sure is by spec.

Rest of it by feel. Stick one wheel on grass and one on Tarmac and boot it to test.

Tho if you have a Tochi-Fuji diff (Mk2.5 6 speed) which is a Torsen with a preloaded clutchpack this test does work .