Old skool 4x4 MOT brake test?

[FamilyGuy]

Took my 120 'cruiser for it's first MOT (in my ownership) last week at a very well equipped large garage. I watched the guy drive it out into the car park and do a couple of emergency stops... a bit like I remember on the MOT for my father's Morris Oxford a few decades back! I asked the guy at the desk and he said it's a 4x4 - can't use the rolling road. But the centre diff lock is on a switch (and normally off) so I can't see the problem and I'm always keen to know the brakes work Are they right?

[Hereward]

Your wagon has permanent 4WD so they are right. Centre diff locker doesn't come into it - all 4 wheels will still be turning regardless of whether diff is locked or open

[normalbloke]

Also he should have had the calibrated brake tester strapped into the passenger seat.

[FamilyGuy]

Hereward said:

Your wagon has permanent 4WD so they are right. Centre diff locker doesn't come into it - all 4 wheels will still be turning regardless of whether diff is locked or open

Doh! I was thinking of the engine driving the car and turning the front (for example) wheels whilst the back remained stationary. But of course the rolling road turns the wheels whilst the input to the centre diff would remain stationary and so as you say, the rears would want to turn. I suppose the cost of a 4 wheel rolling road is prohibitive when it would have to cope with all sorts of wheelbases.

[leginigel]

normalbloke said:

Also he should have had the calibrated brake tester strapped into the passenger seat.

No it sits on the floor,had my 90 done that way for the last 10 years!

[normalbloke]

leginigel said:

normalbloke said:

Also he should have had the calibrated brake tester strapped into the passenger seat.

No it sits on the floor,had my 90 done that way for the last 10 years!

My mistake then,I have one hanging on my wall and it has what appeared to be a belt mount on it!I ought to have a go with it one day just for a giggle!

[Jem0911]

Taply meter I think tis called?