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Old Nov 23, 2012 | 06:19 AM
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Default brake questions....

I'm getting ready to switch out the rotors for some shinny new slotted ones. Does it matter which way the slots face?

When bleeding the brakes I know I start with the one furthest from the reservoir. Is there a sequence after that?

Thanks guys.
 
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Old Nov 23, 2012 | 08:57 AM
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According to JTIS the bleed sequence is:

1. start with Rear RH
2. Rear LH
3. Front RH
4. Front LH

I've never been entirely convinced it makes a difference.

The theory with slotted discs is they remove dust, dirt and water as they rotate, To do this the slot needs to be rotating from centre to perimeter. Fitting is therefore in this orientation where the red arrow is direction of rotation:

brake questions....-slots.jpg

Apologies for using a Subaru pic. I couldn't find a Jaguar one which shows up as clearly.

Graham
 
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Old Nov 23, 2012 | 10:40 AM
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Thanks Graham. Just what I need.
Jeff
 
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Old Nov 23, 2012 | 12:24 PM
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flyrr, if you look on the rotor, it should be marked atleast with an "L" and "R". I think you can figure things out from there. That is what I have seen in the past. Some will even say "LF" for left front, etc.
 
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Old Nov 24, 2012 | 09:26 AM
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Be aware that slotted and drilled rotors have no performance benefits on street driven cars- it's for 'bling' only. Graham is correct in the theory, but at anything else than full racing conditions, it makes no difference.

I also agree that the sequence of bleeding, although carved in stone for many decades, is unlikely to make a difference. Makes me think of the old story of monkeys in a cage that won't climb the ladder to get the banana.
 
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