Brake test rollers...damage?

BROX · 12-05-2012, 12:39 PM

Here in the UK we have an annual m.o.t test (to check the car for road worthiness)......they use rollers that drive the wheels to test the brakes,the front first and then the rear.....is this ok to do with the RAV4 with All Wheel Drive or could damage be done...just curious.

Pim · 12-06-2012, 06:06 AM

4WD cars cannot be tested that way. It damages the drive train. That also is a VERY old system to test brakes and not very reliable too.
Greetz

Pim

Dr. Dyno · 12-06-2012, 09:14 AM

Depends entirely on how the rollers are set up. We had such at test in CT for a short time a few years ago. It didn't damage any vehicles I know of and was very revealing as to brake balance and effectiveness. Was a hard test to pass but meant the brakes worked well.

Come to think of it I don't remember it using rollers. They drove the car onto a platform and hit the brakes.

We've "progressed" from that to no safety inspection at all.

Just emissions every two years.

BROX · 12-06-2012, 12:34 PM

Quote:

Originally Posted by Pim

4WD cars cannot be tested that way. It damages the drive train. That also is a VERY old system to test brakes and not very reliable too.
Greetz

Pim

This is recently refurbed test centres.....the Rav HAS done the test from 4 years old with no damage.....its just i noticed some sites saying 4x4s could not be tested this way.....i was just curious....might contact the test centre.

Pim · 12-06-2012, 02:40 PM

Funny, i remember reading a notation from Toyota that brakes should not be tested with only rear or front end on rollers due to high stress levels on the drivetrain with 4WD cars.
Where i read it i can't recall, but i am fairly sure reading it.
Greetz

Pim

12-05-2012, 12:39 PM	#1 (permalink)
BROX Senior Member Country: Join Date: Feb 2010 Location: Lisburn , N.Ireland Posts: 388 Thanks: 1 Thanked 0 Times in 0 Posts Feedback Score: 0 reviews	Brake test rollers...damage? Here in the UK we have an annual m.o.t test (to check the car for road worthiness)......they use rollers that drive the wheels to test the brakes,the front first and then the rear.....is this ok to do with the RAV4 with All Wheel Drive or could damage be done...just curious. __________________ 1998 Rav4 Freesport AWD 3 door 2003 Ford Mondeo 2.5 V6 "Zetec S" 1995 Ford Probe 16v

12-06-2012, 06:06 AM	#2 (permalink)
Pim Advanced Member Country: Join Date: Oct 2010 Location: Netherlands Posts: 2,213 Thanks: 6 Thanked 93 Times in 93 Posts Feedback Score: 0 reviews	4WD cars cannot be tested that way. It damages the drive train. That also is a VERY old system to test brakes and not very reliable too. Greetz Pim __________________ Driving a BMW318i with LPG at the moment. Had a 2.0 RAV4.1 1997 3drs 4WD euro model w/ABS dual sunroof blue two tone previously.

12-06-2012, 09:14 AM	#3 (permalink)
Dr. Dyno Advanced Member Country: Join Date: Jan 2010 Location: Eastern CT Posts: 2,901 Thanks: 77 Thanked 137 Times in 132 Posts Feedback Score: 0 reviews	Depends entirely on how the rollers are set up. We had such at test in CT for a short time a few years ago. It didn't damage any vehicles I know of and was very revealing as to brake balance and effectiveness. Was a hard test to pass but meant the brakes worked well. Come to think of it I don't remember it using rollers. They drove the car onto a platform and hit the brakes. We've "progressed" from that to no safety inspection at all. Just emissions every two years. __________________ Fred __________________ 2006 RAV4 V6 4WD Red Limited 2006 Accord V6 Hybrid - quick as the RAV but +8 mpg 1999 F-250 4X4 Diesel - snow plow, Bully Dog chip 2001 F-250 4X4 Diesel - truck camper, TS chip, 20' bike/trike dyno trailer 2004 Suzuki DRZ-400S Dual Sport It's the pedal (or the handgrip) on the right!!

12-06-2012, 02:40 PM	#5 (permalink)
Pim Advanced Member Country: Join Date: Oct 2010 Location: Netherlands Posts: 2,213 Thanks: 6 Thanked 93 Times in 93 Posts Feedback Score: 0 reviews	Funny, i remember reading a notation from Toyota that brakes should not be tested with only rear or front end on rollers due to high stress levels on the drivetrain with 4WD cars. Where i read it i can't recall, but i am fairly sure reading it. Greetz Pim __________________ Driving a BMW318i with LPG at the moment. Had a 2.0 RAV4.1 1997 3drs 4WD euro model w/ABS dual sunroof blue two tone previously.

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