I recently replaced my pads on my CS. The original setup included shims between the caliper pistons and the back of the pads. I have lost the fronts but put the rears on, causing what seems like rear brake bias.
My question is, is it okay/better to go without any of these shims since they are not attatched to the pistons now anyways, or should i have all the shims replaced?
The "shims" are there to prevent noise, and shouldn't have anything to do with any braking bias,.....whether there or not. Yes, I would use new ones everytime the pads are replaced. A little bit of money, but
Porsche
put them there for a reason.
They didn't put them in my 2.7 in the rear. So I didn't install the "replacements" I bought when I did my first pad change. They never squealed. So go figure. Probably more vital in the fronts?
The OEM shims do reduce noice but I prefer weltmeister anti-squeal liners for street use. They are far cheaper than OEM shims and they make track pad swaps easy because they don't protrude into pistons. I don't use any shims for track pads. Whatever you do, don't use traditional anti-squeal brake goo on
Porsche
brakes.
two questions though...does
porsche
make a "goo" i can use or do you think the liners are best?
will this solution be effective with ceramics pads? these are what i use for street.
thanks,
andy
Pagid Sporst have the noise shims attached - and I now carry them, in stock.
Order up Oranges (same prices) and specify in the comment section you wish the SPORTS -
My experience is that the shims on the back of the Pagid Sport Blues are not enough to eliminate noise. The OEM pads have the same type of shims but the vibration dameners are used in addition to the shims in the OEM application.
I suggested to not use the goo to avoid the mess. I also seem to remember reading somewhere that
Porsche
advises against the goo because of it's effect on the rubber surrounding the pistons. Now if you are just using the goo to re-attach a vibration damper, I think that's probably OK.
Here's my suggestion; If you are going to swap pads for track days, use Weltmeister liners on your street pads. If you are not doing any pad swapping, use the OEM vibration dampers to minimize noise.
If you can fit the dampers to the Sports, add 'em back on -
AFAIK, the goo is not to be used as an adhesive to attach things (?)
I highly suspect that
Porsche
uses what it does to:
A) Keep it simple - By using very soft pads to minimize any sound.
B) Lemon laws.......imaging the mess
Porsche
would have on it's hands with brake pads that even made an incurable peep.........for a person who spent 60k on a car that sees no track time and who alos does not have any understanding of the tradeoffs that come with choices in friction materials.
