The right method to test a Defender handbrake on MOT

Just had my mot and the tester drops the back end off the ramp (on the ground) to simulate a hill and checks the handbrake will hold it. They are an old school village garage used to old vehicles and farm land rovers though, which is why I use them.

Just wondering if they are letting all four wheels spin or their rolling road? Isn't it bad for a Landy's transfer box to have only one axle spinning for too long?

I was always told it was a good way to bugger the difs in the transfer box.

NiallRussell said:

Just wondering if they are letting all four wheels spin or their rolling road? Isn't it bad for a Landy's transfer box to have only one axle spinning for too long?

I was always told it was a good way to bugger the difs in the transfer box.

Click to expand...

It is!
They do mine on the rolling road because that is what they have, but as they are an old school garage used to land rovers they do not let the wheels spin. They apply the brake and then start the roller and the wheels barely turn, probably not even a full revolution, then repeat with the other axle. If you run the test like a normal car with lots of single axle spinning you will wind the diff up and that can be very bad. It depends on what the garage is used to, I travel a fair distance and pay more than other places to use a garage that knows the vehicles and treats them as such rather than thinking it is just another modern hatchback.

Actually it isnt, Defenders can be put on rolling roads, I cant remember off hand what speed is recommended but it clearly states the procedure on the information plate on the fuse box.