Hey Paul

 I would be interested in one of these flex plates also.

 Bob Mears

 We have done further R&D.

 This is the latest and final version (I hope).

 Mark will be testing it on his 3 rotor p-port shortly.

 Here is how it looks. If you want one of the couplings prepare to
 send me a spline plate. Either new from ebay ($37) or the one you
 bought from Tracy and your input shaft. I can add another pin to
 the gear and cut the drums off the new spline plate and machine it
 to fit. I will mod the input shaft. Very little heat will be
 required as braze will work.

 You will have to drill out the 1/4 inch bolts holding the ring
 gear bulkhead and replace them with 5/16th bolts.

 This will fix the gear box problems showing up in the last 5 years
 or so with the higher power rotaries. Turbo, p-port and 3 rotor.

 Mark. I am buying the material today. It will take a few days to
 water jet cut some of the parts. When they are done I will send you
 a kit for welding and testing.


 Paul Lamar


 Paul please puy me down for one too as I'll be changing to higher
 horsepower with the p port eventually

    - Alex



 Paul:  I am still interested in the dampener, and I ordered a
    spline plate off ebay as you suggested.  I won't be able to mail
    it out til next Wednesday (19 Jun) due to my work schedule..

 Any guesstimate on cost?

 Thanks

 Kevin DeVore

    If you are good at welding steel I'll sell a kit of parts cut to the
 proper length for
    $150. Plus shipping.

    Six pcs of 3/4 by 1 1/2 4130 tubing.
    Front and rear water jet cut 4130 bulkheads.
    Front 2 3/4 OD tube mild steel.
    rear 6 inch OD tube mild steel.

    Paul Lamar

 I expected to get the tubing in on Friday or Sat but it did not make it.
 So I can't ship until tues or wed of next week.
 It will be partially tack welded as I need to true it up
 in the lathe.

 BTW Bob, the flex plate is not included. Use a 13B flex plate.
 The 3 rotor flex plate is a different contour.
 The flex plate no longer transmits any torque. It is just
 used to start the engine.


 Paul Lamar


 Paul,

 That's fine.  I'm in no big hurry.

 Mark

 So in this final iteration, do we need to send you anything or
 not(other than money)? I'm interested.
 C. Smith

 If you have one of Tracy's gear box's you can use the existing
 spline plate. It means drilling out the 1/4 aluminum rivets and replacing
 them with half a dozen or more high tolerance 1/4 inch AN screws.

 Or you can buy one of these (attached jpg) and send it to me. I will cut
 off the drums and turn it down to size on the lathe. I will
 leave drilling the screw holes for the spline plate for a dozen
 10-32's.


 Or if you have the ware with all you can cut off the drums
 and machine it your self. They are easily cut off in a 10 or 12
 inch lathe.

 Paul Lamar

 Ok, let me rephrase the question. I have tracy's plate. I can do the removal of the drum.
 I can weld.
 So there are no other parts that need further modification, just weld together the parts
 kit that you supply using the spline drum from tracy's plate and the auto trans flex plate.
 How much is that, just the parts kit minus rework of drum?
 C. Smith

 I'll let you know in a few days when I have all the parts made.

 Paul Lamar

If all goes well. My cheap LAM Chinese lathe I bought about 50 years
ago has been very accurate and served me well. The jaws are solid
and only 5 inch. I am hoping I can chuck the six inch tubing
and true up the bore of the coupling part that bolts to the counter
weight after welding.  I think it is a south bend copy.
The chuck mounting looks the same. I have a spare backing plate
that I can machine for six inches.

I found a six inch chuck with reversible jaws on ebay
for $99. Six inch chucks normally go for about $700 or $800 new
from enco and other suppliers. It is to be here USPS on Thurs or
Friday. Everybody cross your fingers or pray :)

Paul Lamar