Hi, Jerry....I have been reading and watching development of your
universal engine mount jig with great anticipation.  I am hoping
you
may be able to help me out.  I am building an SQ2000 (canard
pusher
similar to a Cozy or a Velocity). I need have a 1989 13B engine
with
the Ross redrive. I have the dimensions for where the mount should
attach to my firewall, and the dimensions from firewall to prop
flange,
and the thrust centerline.  What other dimensions would you need,
and
does it sound like you might be able to help me with a motor
mount?
It
is wonderful to see that you are addressing this "missing link",
the
13B motor mount.  Thanks in advance for your reply.  Paul Conner,
Mobile, AL

Hi Paul

  I don't know if I can build a mount to fit the Ross Drive or not.
It
depends on how difficult it is to adapt our motor mount plate to
it.
What  is the shaft size  where it goes through  the mmp and the
size
of
the oil seal?     Please send me all the numbers.   Also, include
the
starter diameter where it goes through the MMP.   Another issue
will
be
how far the mmp stands off from the bell housing.   If this is
different
from Tracy's I will need that measurement as well.   Did you
receive a
drive adaptor plate with stand-offs with your drive.  If you did,
we
can
get the numbers from it.

   I think Paul Lamar will provide a plan for the tubing structure.
He
has done a number of them already.  I will Cc this to him so that
he
knows  what is going on.

    Regards,   Jerry

You could TIG weld 1/2 inch plate elephant ears on the ross bell
housing.
If they join the Ross bell housing over an angle of 90 degrees
on each side the shear stress in the weld will be low.

In fact a .75 inch high solid section of plate passing under
the Ross bell housing would take almost all of the high stress.
I'LL do a sketch.  Here it is. Minor breakthrough in standardizing
13B A/C motor mounts if I do say so myself.

Paul Lamar

Well, I don 't know what you are talking about but I have faith.
Send
me the sketch when you get a chance.  It would be nice to include the
Ross guys in.   Jerrhy

I thought I did. I checked. I did. Here it is again.
Can Mac's read gif's?

Paul Lamar

I think Macs can read about anything. The gif came through fine.  What
is it about the Ross that prevents us from using the MMP?   I suppose
we
could cut the center out of an MMP and weld it according to your
drawing. We would have to use a steel plate with the bell housing bolt
pattern to keep the aluminumn plate from warping.   I am still waiting
for someone who has Tracy's drive and a 13-b to contact me.  Amazing
the
combinations being contemplated.   ....Jerry

It might not warp if you TIG weld it a little at a time.
You can also bolt it to an old end cover when you weld it.
You will also need a web site Jerry.

Paul Lamar

Affirmative on the web site.  It will be up and running at the end of
July.     Jerry

Hang in there Jerry. It will take awhile.

Paul Lamar

 
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