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Posted for "R. J. Smiley" <rjsmiley@tscnet.com>:

I purchased my Lancair from another party (Lancair 360 serial no 170)  who started work on it and found out the time involved was too much. Completing the project, I discovered the brake rotor did not run true thus causing the calipers to also wobble which would cause excessive wear and probably uneven braking.  Further discovery lead me to the conclusion that the three support pads on the wheels which are in contact with the rotor were not machined thus it was impossible for a casting to be true.  After a trip to the machine shop and a lath action, the wheels are trued up, the rotors track true and my brakes do not wobble and stops are even.  CHECK YOUR WHEEL CASTINGS TO SEE IF THE ROTOR SUPPORT POINTS ARE MACHINED,  IF NOT, THEN QUITE POSSIBLE YOU WILL NEED TO TRUE UP THE WHEELS TO PROPERLY ALIGN ROTOR TRAVEL.  This might be one of the probable causes of brake clatter and chatter.

Bob Smiley
rjsmiley@tscnet.com

LML website:   http://www.olsusa.com/Users/Mkaye/maillist.html
LML Builders' Bookstore:   http://www.buildersbooks.com/lancair

Please send your photos and drawings to marvkaye@olsusa.com.

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