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Old 10-16-2016, 06:58 PM
xaliscomex
 
Join Date: Feb 2006
Location: Ventura County, CA
Posts: 383
Quote:
Originally Posted by Frank Reiner View Post
x:

These words are from your first post in this thread:

"1979 300sd (w116)
Will be replacing the front calipers to my 300sd.
I have Bendix calipers at the front and ATE on the rear"


Since you did not say otherwise, should we understand that the car was driveable, and that you intended only to replace the calipers?
If that is the case, then why in the world would you think that the Grinch stole your rotors and left "oversize" ones?
Your problem is not with the rotors, but with the calipers that you bought, the words and letters on the box be damned.

It was a routine check on brake pads about a month ago
Before I pulled the tires off, I decided to check to see if my wheel bearings were OK.
I lifted the car and positioned my hands at 12 o'clock and 6 o'clock position to shake the tire.
I could feel a lot of play

The Front Right wheel bearing was shot and brake pads were worn.
I decided that it would be good to replace the wheel bearings and get the rotors turned (machined). Front Right Rotor was difficult to remove and thought it was due to the bad wheel bearing. Finally removed the rotor and saw that the bearing was really bad.

Took my rotors in to a repair shop and next day got the rotors with new wheel bearings back and so I proceeded to install them that weekend

RF rotor was again difficult to install but never worried because I had called the repair shop explaining how difficult it was to push one of the rotors all the way in. Owner of shop was not concerned and so I continued to install it.

Installed the rotors and went to install the pads on the removed calipers.
I got stuck with the LF caliper because as I pushed on one caliper piston, the other side (piston) would pop out. I could not get them to open up at the same time and thought that I needed a special tool

As I continued to try push both caliper pistons in (create space to fit over rotor), one of the rubber boots came off one of the pistons.

Lacking experience with rebuilding calipers, I played it safe and decided to purchase new calipers.

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