I am performing an engine overhaul. The shaft turns smoothly and
 has end    play without binding before performing the eccentric end
 play check. The end    play is 0 and I have gone to a maximum spacer
 thickness of 8.12 mm spacer    stamp s which gives a slight end play
 clearance until tightening the bolt.    It still turns smoothly with
 a nice compression popping sound. The bearings    are properly
 mounted on the spacer and 2 thrust plates are installed per    procedures.

     Any ideas on this ?

     John P

     I assume you have the shop manual.

     One can download them from here free.

     http://foxed.ca/index.php?page=rx7manual
                              

     Paul Lamar

                            
   Paul

   I have the shop manual and other Info. I  overhauled  other rotary
 engines but may  have ignored previous eccentric shaft end play.

   John P

   Final assembly must be done vertically as the needle bearing can
   fall out of place. That is about the only thing that can go wrong.
   Most manuals do not cover that well. In fact it shows it
   done horizontally. The 76 Cosmo manual is very clear on this.
   Step 1 is turning the engine on the engine stand so the front of
   the engine is up.

   What year is this engine?

   Maybe I am missing the point here.
   If so the attached pictures and above text are for the new guys.

   Perhaps you need to machine a longer spacer.
   I have a guy that can do that and he only charges $35 and hour.
   If so send me a spacer he can measure and  make a new one.

   Paul Lamar

                          
 Paul

   I would like to take you up on your offer for a thicker spacer.
 The only difference in the above listed spacers is that I would try
 a 8.14mm thickness spacer. The engine is a 1991 2nd generation. The
 eccentric end shaft is straight 30mm dia. The spacer inside diameter
 must be slightly larger for clearance. The spacer od is 35mm-. The
 needle bearing race id is 35mm and rides over the spacer. Any of the
 above spacers could be measured and checked against clearance to the
 30mm eccentric shaft and 35mm id needle bearing races. The
 additional required 8.14mm thickness is then required. I will send a
 K stamp 8.06mm thickness which fits another engine and gives the
 same required inner and outer clearances. The bearing race is
 included to check spacer clearance. If the 30 mm dia eccentric shaft
 is available it would be nice to check for clearance to the new spacer.
 Please send forwarding address and cost.

 Thank you
 John P

 I am guessing at the cost. Perhaps $50 if it is less than that I
 will put the change in the box. If more than that I will eat it. The
 largest problem is coming up with a piece of steel. If my local
 supplier has it in stock no problem if not I have to mail order it
 and there may be a minimum. I really big bolt would work. If you
 have a piece of steel we can use that.

 Mail address is:
 830 East Santa Maria St.
 Suite 303 <<<<<<<<<<<<<<very important
 Santa Paula CA
 93060

 Paul Lamar


 I deleted the photos of the end play spacer and bearing. It looked to me the
brg ID was not sufficient for the OD of the spacer. Parts from two series
mixed up??

Dale Davies