09 R3 front brake shim orientation...
#1
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09 R3 front brake shim orientation...
Ok. So I've looked up on mazdaspeed parts catalogue and searched around. I'm having trouble knowing which way to install one of the shims on the front brake pads. Below is the front set of shims for one side from mazda.
The one in question is this one. One side is "mesh"
The same shim as above but flipped over is metal.
Can someone assist me on which way or where this shim is installed? I installed this unknown shim mesh side facing outwards between 3 and 4 on the next photo.
Also the vented shim on 4 has an arrow. I assume this arrow points up or in the way of forward motion of the rotor. Is this correct as well? Any help would be appreciated. Thanks.
The one in question is this one. One side is "mesh"
The same shim as above but flipped over is metal.
Can someone assist me on which way or where this shim is installed? I installed this unknown shim mesh side facing outwards between 3 and 4 on the next photo.
Also the vented shim on 4 has an arrow. I assume this arrow points up or in the way of forward motion of the rotor. Is this correct as well? Any help would be appreciated. Thanks.
#2
Water Foul
I can hook you right up with that. That pad mates to the outside shim, and the textured side points in. I drew a diagram the first time I took my pads out and realized the shop manual does not show that as part of the shim stack.
The arrow on the inside shim does indeed show the direction of rotation.
The arrow on the inside shim does indeed show the direction of rotation.
#5
Water Foul
Here is the page from the 2011 service manual showing the location of the shim in question.
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Good eye. Thank you. That's where I ended up putting it but can't remember which way that mesh shim went. No noise so I guess I got it right lol! Thanks for the clarification.
#8
Water Foul
Brake shims:
1. Reduce squeal
2. Provide a torquing surface to help keep the pads from twisting
3. Draw heat away from the pads
They are not strictly necessary, but it is a very good idea to use them. The clearance at the rear caliper is small, but with the proper use of a brake caliper tool, they can be closed properly with the shims installed.
1. Reduce squeal
2. Provide a torquing surface to help keep the pads from twisting
3. Draw heat away from the pads
They are not strictly necessary, but it is a very good idea to use them. The clearance at the rear caliper is small, but with the proper use of a brake caliper tool, they can be closed properly with the shims installed.
#9
Super Moderator
OP, I thought the layout in your 4th image of the manual is pretty clear.
Yes you must use them, failing to will create rattles and alignment issues of Pad to Disk over time with aggressive wear angle on pad face.
And rattling/noisy pads.
Yes you must use them, failing to will create rattles and alignment issues of Pad to Disk over time with aggressive wear angle on pad face.
And rattling/noisy pads.
#10
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Please do use the shims. They are very important. See how I found out.
https://www.rx8club.com/rx-8-discuss...s-pads-258378/
https://www.rx8club.com/rx-8-discuss...s-pads-258378/
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