Limited Slip Diff & MOT

[Puddenchucker]

Can a viscous coupling type Limited Slip Differential be safely tested on brake-test rollers during an MOT test?

I can understand why a mechanical LSD would not like being used on brake-test rollers, but would have thought that a viscous coupling LSD would be tolerant enough to withstand a few low speed rotations on the rollers without sustaining damage.

[stevieturbo]

It would take some very strange rollers to replicate the abuse a driver could impose on an LSD.

[agent006]

MOT tests one axle at a time, so LSD should be OK. It's center diffs on 4wd that have trouble.

[That Daddy]

Tell the tester 1st,my local testing station wont roller test the rear brakes on such cars with LS Diffs as in TVR,BMW,etc,he prefers the Tappley meter and a roadtest.

[rev-erend]

That Daddy said:

Tell the tester 1st,my local testing station wont roller test the rear brakes on such cars with LS Diffs as in TVR,BMW,etc,he prefers the Tappley meter and a roadtest.

They just don't want to be accountable for any damage.. which is fairey muff.

[stevesingo]

Or the reason could be that the locking of the diff could effect the accuracy of the individual wheel readings. Never had any problems myself.

Steve

[That Daddy]

rev-erend said:

That Daddy said:

Tell the tester 1st,my local testing station wont roller test the rear brakes on such cars with LS Diffs as in TVR,BMW,etc,he prefers the Tappley meter and a roadtest.

They just don't want to be accountable for any damage.. which is fairey muff.

Exactly,i have told him that the diff is only freewheeling