I called a local mazda dealer's service department, seeking a second
opinion
 on
 my used rotors. I was told by the service writer that dealer service depts
 do
 not take down engines, they don't even know what things inside look like,
 they
 just get a new engine form Mazda. Hmmmm.
 Does anyone out there who has the experience of rebuilding a rotary make
 inspection measurements as called for in the shop manual? During cleaning
I
 found some "minor" dings and dents, and some burrs along the edges (not
 seals)
 that I carefully stoned out in a 2 step process, med-fine, then very fine.
 the
 rotor housing clearence passes minimum of .1mm. but there are still some
 cosmetic issues where some knuckle head used a brass hammer, and a couple
 other
 dings. Would anyone here care to see pictures and offer comment?
 Will be posting turbo manifold this evening, along with other picuters if
 there
 is an interest.
 C. Smith

 Sure send the pictures.
 Paul Lamar

 Here are some images. I didn't want to compress them too much, and loose
all
 the detail.
 If there is a particular size you prefer to the group, please let me know.
 C. Smith

 Those are some strange marks but I don't see anything that is a show
stopper.
 As long as the holes for the end seals are not too oversize you should be
 OK. The pict size is fine. Perhaps a few too many but OK for this once.

 Paul Lamar

Yep 9:1 cr rotors

Skip


I agree with Larry.  There are much better used rotors to be had for not too
much.  In a couple pictures the apex seal grove appears bent or damaged.
They would maybe work fine, but why risk it?  Keep on eye on e-bay for used
rotors and engines.  In 6 months you will find some great stuff.