What is your question? You have not asked a question or provided enough information for an answer to be given.
Depends on what you're checking. A piece of window glass works well for checking push rods for straightness. A machinists straight edge is good for checking heads and decks.
the car's speedometer and a compass.
by measuring something with a known constant thickness, a dollar bill or something. A 'gage block' is best
How can I calibrate a micrometer without the use of gage blocks. Any adjustments on the device?
Use a torque wrench that is graduated in ft. lbs or do the math.
What are caliper pinsThe caliper pins hold the caliper in place and allow it to slide to make up for pad wear.UP in tyhe sky ok :) :) :)
When there is to much resistance to retract the piston,When the rubber piston(s) boot/seal is damaged/torn,When the bleeder is broken/stripped,