On Friday, October 31, 2014 4:10:22 PM UTC-4, J Burns wrote:
On 10/31/14, 8:25 AM, trader_4 wrote:
Adjusted? I haven't owned a car with brake shoes in my lifetime. I
doubt Micky's import has shoes. And never seen a disc brake that you
could adjust.

Have four-wheel disks taken over? Well call me Rip Van Winkle! How do
you guys go parking without rolling into the lake?


We're talking about Micky and the service brake, not parking brakes.



The 1949 Chrysler Crown Imperial had four-wheel disks, but owners hated
them. The 1950 Crosley Hot Shot had them. Owners paid to have them
changed to drums.

The 1962 Studebaker Avanti established the standard of disks on the
front and drums on the rear.

If Micky has no drums, I believe brake mechanics could still be the
problem. Typically, runout is specified at less than .05mm.


Never said brake mechanics couldn't be the involved. The issue was that
Clare brought in "adjustment". Disc brakes don't have an adjustment.
And I'll bet Micky's brakes on that care are disc.


If it's greater, and the cause is uneven transfer from the pads,
resulting in uneven disk thickness, the driver will feel pedal pulsing.

If that's not the case, and the measurement varies once per revolution,
the problem could be contamination between the disk and the hub face.

Otherwise, it could be a warped disk, which can happen putting lug nuts
on.

If a disk wiggles ever so slightly as the car runs down the road, the
caliper will wiggle. I can't speak from experience, but I imagine this
wiggling could open the caliper ever so slightly, causing a long push
the first time the brake pedal is pushed.

I would agree that sounds possible. But it would seem it would have to
be quite a bit of wiggle to result in the pedal going half-way to the floor.