Hi Paul!

 Here's a couple pics of the acrylic damper assem mockup. Presently, the
 original 6.9" diameter for the damper section looks to be a little too
 small when using the 1/2x1x7/8 blocks, as there is conflict with the large
 washer ring. The image shows the blocks standing on their 7/8 side, instead
 of the one inch side, and it's still a bit too large.

 What do you suggest is the next step?

 Ed Carver


 Looking good Ed.

 The shaft project has run into a snag. I need to get the material back.
 Michael that owns all those big lathes was forced to get a full time
 job to pay the bills. He just was not getting enough biz to keep the
 doors open. I'll see if I can get in touch with him tomorrow after
 his work. I may be able to cut them to length with a carbide chop
 saw I have. Jim thinks he can do it with his lathe. Just not as fast
 as Michael.
 ------------------------------**------------------------------**-----

 As to the flex plate what rubber blocks are you using?
 I assumed we would use custom molded rubber blocks to fit.

 At least that is what I said in an old message in Sept.

 -------- Original Message --------
 Subject: Gear box pictures
 Date: Mon, 19 Sep 2011 16:08:01 -0700
 From: Rotary Engine <rotaryeng@earthlink.net
 To: AAA Put this in the To box <rotaryeng@earthlink.net

 lots of snips....

 "Now it is possible to design the concave rubber blocks with enough
 expansion
 clearance so no axial force will be generated."


 ------------------------------**----------------------

 OK I think I have it figured out. What you are saying is the 1" by .5"
 rectangular tubing
 is too big to fit the 6.9 inch diameter and the stock steel clamp ring.

 I probably made a mistake on measuring the clamp ring diameter. What
 number do you
 have on that?

 We can do one of two things. Cut down the clamp ring plate in a lathe or
 go up on the 6.9" dimension
 slightly. What do you think?

 Paul Lamar


It's why we made a mockup. The ring diameter is odd in that it extends
outward past the bolt centers more than it does inward. Seems natural move
the diameter out at least .200". The ring is 5.115" OD.

Is there in the plans something to contain the rubber on the inside
diameter of the .5x1" blocks? The spline plate inward extension will ride
about .100" off of the e shaft.

The spline plate as shown in my photo does not have the OD cut down to your
spec. That is because I am not sure if I will use it. I am going to use a
longer input shaft, and hence, a different spline plate.

Gotta do what you gotta do Michael. I'd be in the same boat if it were not
for the mass of old porsches and parts I collected over the past 25 years.
Even with the bust of the Euro, Germans still want their lawn mower engine
powered old 911's back. (I will always tease porsche lovers because they
whine too much when they lose at the track) ;)

A chop saw will easily cut the alum shaft material. I may be able to get
the shaft bored in the EAA hanger. We have a couple lathes in there, but
they are on the small side and I would need to create some sort of bearings
to hold the shaft at it's longest extension out from the chuck.

 Perhaps Michael can do it as a side job. Can 4.5" material fit into the
bore of that chuck? The easy part for him would have been turning the
housing, which has a much larger diameter. That part is probably out of my
size range because it it too long for my mill.

Ed Carver

To cut it down to fit it must be 4.750" dia..

What we have going for us is the large 4130 plate is .096 thick while the
mild steel stock plate is .062" thick.

I'll try to have another talk with Michael today.

Here is flex plate rev 4 with with a 7.586 diameter.

We measures Jim's chuck and we can get 4 inches in there no problem.

Things are getting hectic around here so after Christmas is going to be it.

We have a pack of relatives staying with us.

Paul Lamar