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Brake piston knocking... need help

Brake piston knocking... need help

icemahn
Member
137
01-10-2016, 01:37 AM
#1
A while ago I noticed a knocking sound from the front nearside brake caliper everytime I hit the brakes. I took the caliper off and found out that the other piston gets stuck, thus pushes later than the other, hence, the knocking sound. I pushed and pulled both pistons several times and cleaned the rubber seal and it disappeared. Yesterday it happened again. Can anybody tell me what the problem is? Sad

Mazda CX7. 2.3 Turbo MPS. Corksport air intake. Turbo Smart dual port.
icemahn
01-10-2016, 01:37 AM #1

A while ago I noticed a knocking sound from the front nearside brake caliper everytime I hit the brakes. I took the caliper off and found out that the other piston gets stuck, thus pushes later than the other, hence, the knocking sound. I pushed and pulled both pistons several times and cleaned the rubber seal and it disappeared. Yesterday it happened again. Can anybody tell me what the problem is? Sad


Mazda CX7. 2.3 Turbo MPS. Corksport air intake. Turbo Smart dual port.

steviewevie
Posting Freak
7,993
01-10-2016, 01:38 AM
#2
You really need to get the caliper serviced, sticking pistons are quite common on the IS200. You can do this yourself if you're feeling confident (Toyota/Lexus even do a servicing kit with the replacement parts), or take it to a garage to do it. I would at least get both sides done at the front at the same time, even if you don't do the back ones too (the front brakes obviously take more of the strain).

[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
01-10-2016, 01:38 AM #2

You really need to get the caliper serviced, sticking pistons are quite common on the IS200. You can do this yourself if you're feeling confident (Toyota/Lexus even do a servicing kit with the replacement parts), or take it to a garage to do it. I would at least get both sides done at the front at the same time, even if you don't do the back ones too (the front brakes obviously take more of the strain).


[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !

Sparkystav
Administrator
14,683
01-10-2016, 06:41 AM
#3
i get this after very heavy braking, quite annoying!

OutlawJapClub Admin Team
Sparkystav
01-10-2016, 06:41 AM #3

i get this after very heavy braking, quite annoying!


OutlawJapClub Admin Team

steviewevie
Posting Freak
7,993
01-10-2016, 06:46 AM
#4
By the way, it might be the sliders that are the problem, and need greasing perhaps ?

[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
01-10-2016, 06:46 AM #4

By the way, it might be the sliders that are the problem, and need greasing perhaps ?


[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !

icemahn
Member
137
01-10-2016, 09:42 AM
#5
Sparkystav i get this after very heavy braking, quite annoying!

I thought that was the cause. I do break heavily approaching the round about. Is it overheating causing it to stick?

Mazda CX7. 2.3 Turbo MPS. Corksport air intake. Turbo Smart dual port.
icemahn
01-10-2016, 09:42 AM #5

Sparkystav i get this after very heavy braking, quite annoying!

I thought that was the cause. I do break heavily approaching the round about. Is it overheating causing it to stick?


Mazda CX7. 2.3 Turbo MPS. Corksport air intake. Turbo Smart dual port.

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