I have a nut leftover

Active Member

• Jul 12, 2008

• #1

Righty, it's coming up to my first ever 4x4's mot and I can't get my head around how they're going to do the brake test on my Disco' TD5 auto.
How do they do the brake test on perm' 4wd motors? Do they have to disconnect something to let front and rear axles rotate independantly,
or do they put rollers under the wheels not under test?

Or am I just a mong?
Stu.

 

S

stig

New Member

• Jul 12, 2008

• #2

they should use a brake decelerometer on the road to test the brakes (60's technology)

 

I have a nut leftover

Active Member

• Jul 12, 2008

• #3

So when they go to put it on the rolling road I should panic and start screaming at them.

Cheers.
Stu.

 

Trewey

Cockernee, Pasty munchin bastid.

• Jul 12, 2008

• #4

It's OK to use a single axle brake test rig, up to 5Km/hr. That's what they'll do, if they know their stuff.

 

VEGGIELANDEE

New Member

• Jul 12, 2008

• #5

I have a nut leftover said:

Righty, it's coming up to my first ever 4x4's mot and I can't get my head around how they're going to do the brake test on my Disco' TD5 auto.
How do they do the brake test on perm' 4wd motors? Do they have to disconnect something to let front and rear axles rotate independantly,
or do they put rollers under the wheels not under test?

Or am I just a mong?
Stu.

Click to expand...

When i took melandee in for an M.O.T.
They said"THERES A LOOSE NUT BEHIND THE WHEEL!!!"

 

B

brnocz

New Member

• Jul 12, 2008

• #6

depends what system the use our locals use tapley meters and test them on the road simple gadget , they put it the cab drive down the road and apply the brakes the needle on the clock goes round and hence the the braking oercentage

 

I have a nut leftover

Active Member

• Jul 12, 2008

• #7

Thanks for all the info guys.

How can they rotate one axle without the other trying to move as well?

Stu.

 

Bluestrobe

IF ALL ELSE FAILS SHOOT THEM!

• Jul 12, 2008

• #8

Put transfer box in neutral.

But as others have said more likely to use Tapley meter.

 

groenendael

Active Member

• Jul 12, 2008

• #9

As previously stated "the tapley meter"

 

choppa

Well-Known Member

• Jul 12, 2008

• #10

ahh thats the proper name is it ?? my m.o.t bloke calls it a swinginomeater thingy...

 

RSM72

New Member

• Jul 12, 2008

• #11

lrb2 said:

ahh thats the proper name is it ?? my m.o.t bloke calls it a swinginomeater thingy...

Click to expand...

That's wit a fort it wis called as well.....

 

groenendael

Active Member

• Jul 12, 2008

• #12

As Stig says"they use a decelerometer"
It just happens that "Tapley" is the name of the firm that made them and was printed on the face of the meter hence the name stuck.

 

P

PASTMASTER

Well-Known Member

• Jul 12, 2008

• #13

This has been covered in enormous depth before, but I'm not sure the search facility goes back that far. Most use a Tapley meter, with the slight possibility of snapping your half-shafts. There is a way of doing it on a rolling road, but most garages don't bother or don't know about it. My half-shafts have survived so far. And when he asks about the cam belt, explain sweetly that the TD5 doesn't have one (sigh).

 

P

PASTMASTER

Well-Known Member

• Jul 12, 2008

• #14

See http://www.landyzone.co.uk/lz/f8/testing-td5-handbrake-rolling-road-56764.html?highlight=brake+test. The earlier freds seem to have got deleted somehow.