Tool for measuring disc consistency?
04 June 2004, 05:54 PM
#1
Tool for measuring disc consistency?
Basically to check if they are warped or not.
About a month back I replaced my front discs as the previous were cracked. Didnt change the pads as they had some life left in them so I thought I'll see how they go....not very well really, am getting brake vibration when on the brakes at high speed. Also a slight imbalance left/right which is probably down to uneven pads. Just want to check the discs are okay before fitting new pads.
Bob
About a month back I replaced my front discs as the previous were cracked. Didnt change the pads as they had some life left in them so I thought I'll see how they go....not very well really, am getting brake vibration when on the brakes at high speed. Also a slight imbalance left/right which is probably down to uneven pads. Just want to check the discs are okay before fitting new pads.
Bob
04 June 2004, 10:28 PM
#2
A dial gauge will show amount of runout, you will need a stand to hold it. Suggest using magnetic stand clampled to leg
Originally Posted by BOB'5
Basically to check if they are warped or not.
About a month back I replaced my front discs as the previous were cracked. Didnt change the pads as they had some life left in them so I thought I'll see how they go....not very well really, am getting brake vibration when on the brakes at high speed. Also a slight imbalance left/right which is probably down to uneven pads. Just want to check the discs are okay before fitting new pads.
Bob
About a month back I replaced my front discs as the previous were cracked. Didnt change the pads as they had some life left in them so I thought I'll see how they go....not very well really, am getting brake vibration when on the brakes at high speed. Also a slight imbalance left/right which is probably down to uneven pads. Just want to check the discs are okay before fitting new pads.
Bob
04 June 2004, 10:42 PM
#3
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Did you carefully clean all the crud away from the mating surfaces on the hubs before you stuck the discs up against them?
You only need a tiny high spot & the disc will not sit flush & will give the feeling of being warped.
Mark.
You only need a tiny high spot & the disc will not sit flush & will give the feeling of being warped.
Mark.
05 June 2004, 10:40 PM
#4
Took the car to ATS who checked them using a dial gauge (for free). One was around 3 deg out and the other was 4.
I assuming that the pads have screwed the discs.
Moral of the story: Dont try and take shortcuts. Replace both discs and pads at the same time.
Its going to cost me an extra £100 because of this mistake.
As a last ditch attempt I will take discs off and clean the hub. I did do this when I changed them but maybe wasnt good enough.
Thanks for your help guys.
Bob
I assuming that the pads have screwed the discs.
Moral of the story: Dont try and take shortcuts. Replace both discs and pads at the same time.
Its going to cost me an extra £100 because of this mistake.
As a last ditch attempt I will take discs off and clean the hub. I did do this when I changed them but maybe wasnt good enough.
Thanks for your help guys.
Bob
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