I am looking for these dimension from the flywheel 13-b RX-7 if someone
  have one on hand uninstalled i would really appreciate those informations
  see photo
Jean Prudhomme

 Which dimensions? hole spacing? Diameter? Hole size? How exact do you
 need... I happen to have one off the plane right now :-)
 -- David Leonard
 Dave you are insured. Sky Smith had the info on you. You are famous.
 As far as I can tell you can fly the RV4 anytime.
 Apparently two successful off airports counts for a lot :)
 I need a medical and and bi annual. Both have recently expired. I got them
for
 flying in Oz.

 Paul Lamar
Hi David i will need all holes diameter and holes circle so i can compare
with
 the RX_8 flywheelThank's for your assistance
Jean Prudhomme
Jean, I received the damper plate today. All is well. Thanks.
 If someone hasn't already given them to you, I picked up my RX-7 flex
plate from
 the hangar today. I will measure it tomorrow if you still need them.
 C. Smith


C. Smith Thank's for your response of received the damper plate,yes i still
need the holes dimensions on the RX-7 flywheel just to compare if both are
interchangeable, but i found an idea to use the RX-8 flywheel and the
standard Tracy damper but Paul recommend 4130 instead of aluminum plate but
it will add a few pounds, you see the rx8 one  is design differently then
the rx7 with those big holes away of center holes and closed to the ring
gear and by using a bolted plate to the original holes 12mm the Tracy damper
plate by attaching the rubber bushing holes and are line up with the rx8 big
holes for the bolts head clearance.There is a sketch for this additional
plate no welding and no balancing i guess it worth to try.


Jean Prudhomme
Jean when you took these measurements did you measure the outter ring
 diameter and teeth to make sure they were the same as the 13B flex plate?
 If not, could you?

 Thanks,
 --
 David Leonard

 Turbo Rotary RV-6 N4VY
 http://N4VY.RotaryRoster.net
 http://RotaryRoster.net

    
Yes David there is those dimentions you are looking for

Jean Prudhomme
    
Now if Tracy would make a damper to fit we would be home almost free :)

BTW Jean when you scan something or export a dwg please use
jpg instead of pdf as they show up directly in most email programs.

Paul Lamar