Home > Maintenance & Mods (L322) > 2 wheel rollers at NCT/MOT |
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87RJD Member Since: 01 Dec 2013 Location: Wokingham Posts: 103 |
I didn't think RR are suppose to go on the rollers, unless its a four wheel one, It won't have done the centre diff much good.
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4th Mar 2015 6:52pm |
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northernmonkeyjones Member Since: 24 Mar 2012 Location: derby Posts: 8517 |
what he said^^
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4th Mar 2015 6:55pm |
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stuck Member Since: 23 Jan 2015 Location: Lancashire Posts: 53 |
Not good
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4th Mar 2015 6:59pm |
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Lolo Member Since: 16 Feb 2012 Location: Leinster Posts: 608 |
Thanks but I'm wondering if they even did try to test it as I can just imagine me complainig and them saying they didnt put it on the rollers. Surely the fact of the back wheels shuddering was them
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4th Mar 2015 7:03pm |
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stcstc31 Member Since: 01 Jul 2014 Location: dublin Posts: 209 |
i recently had nct, for braking they dod with a meter
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4th Mar 2015 7:10pm |
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northernmonkeyjones Member Since: 24 Mar 2012 Location: derby Posts: 8517 |
yep that would be it.
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4th Mar 2015 7:10pm |
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sako243 Member Since: 26 Dec 2013 Location: Wales Posts: 610 |
Permanent 4WD doesn't mean it can't be tested on a single axle roller.
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4th Mar 2015 7:53pm |
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nicedayforit Member Since: 11 Jun 2011 Location: Beside the Solway Posts: 3976 |
I note what you say but when I had my manual Disco 1, which has the same drive train as a bog standard Defender, in the 16 years I owned it it was always the decision of the respective tester not to use the single roller but to go for a drive and use a Tapley meter instead. This was at a number of Mot test stations over the years. The only time a tester was considering using the roller, imo in ignorance of the possible consequences, he changed his mind when I asked him if his insurance was up to date before testing my car.
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4th Mar 2015 9:19pm |
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sako243 Member Since: 26 Dec 2013 Location: Wales Posts: 610 |
Slight update to my post above as I (stupidly) missed out an important bit of information.
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4th Mar 2015 10:22pm |
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Cam-Tech-Craig Member Since: 03 Aug 2011 Location: Gloucestershire Posts: 16286 |
The man said it right above... Fine on a two wheel rolling rig, right until the point where you apply the breaks then It all goes wrong
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5th Mar 2015 12:06am |
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rathbranV8 Member Since: 23 Jan 2011 Location: meath Posts: 283 |
Most likely what you saw was the suspension and side slip test being performed one axle at a time.Thats the reason why you saw the vehicle shaking around.The suspension test plates are right beside the rollers |
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5th Mar 2015 2:09am |
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Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8219 |
It doesn't cause any issues at all on a FF, the traction system will only work if you are using the engine to turn the wheels, and you are in drive or reverse, the vehicle will be in neutral. The rollers are turned by an electric motor, therefore the car thinks it is coasting and will not lock the center diff or use the brakes on any spinning wheel.
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5th Mar 2015 7:32am |
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steve9bug Member Since: 25 Aug 2013 Location: sunderland Posts: 356 |
My MOT he took the car for test drive with a compass type box in the passenger footwell |
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5th Mar 2015 9:29am |
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stan Site Moderator Member Since: 13 Jul 2010 Location: a moderate moderated moderator moderating moderately in moderation Posts: 35312 |
an extract from the WM,
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5th Mar 2015 9:34am |
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