While checking out the breaks on my 74 Spitfire, I noticed that the driver's
side rotor was not turning freely.
It appeared that the rotor was wobbling. In one section, with no break pedal
pressure, it was extremely hard to turn the rotor.
So, I decided to measure the run out.
Drivers Side Rotor Run out = 0.019
Passenger Side Rotor Run out = 0.004
Could anyone tell me what the acceptable tolerance is?
Any opinions as to where the run out is coming from? The previous
Owner must have replaced these rotors since they and the break pads
do not appear to show any wear. Can the rotors be replaced incorrectly
to cause this much movement?
Jim K
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