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This fix is probably best for new motor mounts using existing beams.
It lowers the beam and inch or so and consequently it raises
the thrust line an inch or so if the motor mount is already welded
up. If new mount is being made the mount can be adjusted to get the
thrust line in the right place.  The four plates are .065 thick
4130. Best to put the nuts on the back side of the flex
plate.

Paul Lamar

Also clears the counter weight.

Paul Lamar

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Copyright 1998-2005 All world wide rights reserved.

Hi Paul,

Since the box beams were bent up to match the width of Tracy's spacers,
the tabs would make it too wide, so the existing beams couldn't be used
with this mod.  How about welding a supporting structure to the bottom
of the beam in the center where the box structure has been cut back?  I
would think the box could be cut back to a 'U' section in the center if
the right strengthing member were added to the bottom.

Bob W.


http://www.bob-white.com
N93BD - Rotary Powered BD-4 (real soon)
Prewired EC2 Cables - http://www.roblinphoto.com/shop/

Please measure your beam width for me Bob. Should only be 2.70 inches wide.

The spacing between plate and engine should be 3.050 or 3.080 I forget
which.

If the spacer lengths are less than that you might have a problem with your PSRU.

Paul Lamar

The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Copyright 1998-2005 All world wide rights reserved.