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Replacing rear rotors and review of Remsa brake pads

Ron Burgundy

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Too hot today. Can't be stuffed.
 

Smitty

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Does anyone actually do indexing/runout procedure when replacing the rotors ?
.. ALWAYS
repeat ALWAYS... on the fronts
and to be frank, did not bother
when I replaced the rears last year
 

Ron Burgundy

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.. ALWAYS
repeat ALWAYS... on the fronts
and to be frank, did not bother
when I replaced the rears last year
Would this be something the dealers/mechanics do routinely?
Had my brakes done a few times and never seen mechanics do it..
 

Skylarking

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@Ron Burgundy, as enthusiest owners, we should be looking at ways to improve on our own service outcomes in terms of quality workmanship. We shouldn't be like the dealer mechanics who seem to pride themselves on how they shortcut recommended processes, to create a cheaper workflow, yet don't look at or consider the follow-on costs of their shortcuts.

Indexing rotors is easy to do, so we should do it as a matter of SOP. Further, we should all have a magnetic base dial gauge on hand and take the time to properly check runout (and if possible rotor thickness variation - how?).

Why shouldn't we do best practice since we're not on a clock like the deaeler mechanics :p
 

Ron Burgundy

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@Ron Burgundy, as enthusiest owners, we should be looking at ways to improve on our own service outcomes in terms of quality workmanship. We shouldn't be like the dealer mechanics who seem to pride themselves on how they shortcut recommended processes, to create a cheaper workflow, yet don't look at or consider the follow-on costs of their shortcuts.

Indexing rotors is easy to do, so we should do it as a matter of SOP. Further, we should all have a magnetic base dial gauge on hand and take the time to properly check runout (and if possible rotor thickness variation - how?).

Why shouldn't we do best practice since we're not on a clock like the deaeler mechanics :p

It looks like thats one gadget I dont have.
Time to get one :)
 

VS 5.0

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yet don't look at or consider the follow-on costs of their shortcuts.

Or do they ? View to generating additional workflow (he says whilst wearing his tin foil hat).
 

Skylarking

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^ yeah, silly me, obviously they do :p
 

Milo 6.0

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Ive replaced brakes on my cars for 20 years and never indexed rotors,tbh ive never heard of it,i actually had to look it up to see what it was.
I always make sure mating surfaces are free of rust/scale etc and never had any issues in 20 years.
My fronts are slightly warped on my wagon but tbh they work pretty good for stock brakes,pulls it up from 180km at the drags,ill replace them one day when i cbf.
 

Smitty

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Would this be something the dealers/mechanics do routinely?
Had my brakes done a few times and never seen mechanics do it..

Holden dealers SHOULD do it ...
if they follow (as they should) the Holden repair procedures.

It was useful in my case as the front drivers hub is
'out' a few thou ( a lot actually) and you can minimise
the effect of the outer rim of the rotor by measure,
check and move the rotor to a position on the hub
where the run-out is at a minimum.

Other mechanics at your local garage? ... naaah :)
 
Last edited:

mechanic

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Point of doing it is that if the existing hub, or the new disc has runout
A small amount of disc runout will not cause brake pulsation. Calipers have slide pins designed to cope with this sort of lateral movement.
Two things cause runout (that come to mind) - thickness variation and pad material deposits.

Your pulsation was likely caused by brake pad deposits on the new disc. If new brake components aren't bedded in properly there's a risk that a very thin layer of brake pad material sticks to the disc surface, causing a grabbing or sticking feeling like pulsation. Google it.

Good quality brake component materials are supposedly matched to minimise any chance of this happening (OEMs go to great lengths to ensure this). Mixing and matching brands and materials is where I've seen this most.
 
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