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Proper Install Of Dampener To Pad And Piston?


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I think I already have the answer but I want to make sure I haven't developed a brain cramp.....

The front vibration dampener (each) has two metal posts attached to a plate that has the other side with an adhesive that is revelaed when the paper is removed....so my question is this:

Do I remove the film and insert the post side of the dampener into the piston openings and THEN insert the pad into the caliper? Then do for the other pad and then tap the brakes to push the pistons to the pads thus adhering the dampener to the pad? OR another way is to drop the pad into the calipers and the slide it on its guides to the exposed adhesive of the dampener?

Thanks! I just don't want to screw this up.

ps. the car is on jacks right now :help:

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ok. so I just came back from the car and apparently I am having more trouble than I thought. I have the pistons FULLY depressed and can barely get the dampener down to the piston openenings without the adhesive side touching the rotor (I haven't removed the film yet so I could test myself--apparently I failed). Do I just need to remove the caliper?

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Have not done this because the base Boxster does not use dampeners. All I can suggest is to make sure both pistons are fully seated. I stick 2 wrenches between the pistons and rotor and use them as a lever to push both pistons in at the same time.

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Figured it out....I think.

Pistons fully depressed...Dampner insreted with film still attached....film removed to expose adhesive side....drop in pad and slidetoward piston till contact with dampner is made.....complete for all 4 front pads.....get in car and tap brakes several times to form a good adhesion. Done.

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Congrats, you chose the easiest approach. You can also do it, as you suggested, by removing the calipers but that's a lot more work and then you have to make sure to torque the calipers properly.

I find that the trick to get the pistons to fully retract is to apply pressure to all 4 at the same time. This is easier to do with the old pads still in. You can use a wrench or long screwdriver to pry on the ears of the pads and get them to spread but I prefer a pad spreading tool, which is available from many auto parts places. I have a nice BMW tool that I got from the ultimategarage.com that makes retracting the pistons a piece of cake.

Karl

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  • 3 months later...

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