Subject: S-beam clearance modification
From: Rotary Engine
Date: 8/24/2005, 8:53 AM
To: AA-me


Paul, I expanded the notch in the S-beam to provide .062 clearance.
This required removing .4375 in from the front flange and .375 in.
from the back flange.  If shorter bolts (AN7-20) can be  used, the
back flange will  only have to be reduced .125 in.  I have ordered a
set which I can test tomorrow.

Jerry Hey

Now we need a picture of the installed reinforcements.

Paul Lamar

No problem if they are just two strips as shown.  I have .125 x .5
304 SS strips on hand.  Will they do?   Jerry


I have heard that welding SS to 4130 is not a problem but
it sounds scary to me. I would be more comfortable with
4130 strips and the right rod.

BTW If you static test this with the front tire of the truck
that would be great. Place the beam with the slot up.

Build a fixture out of 3 inch angle to apply the load to
just the bolts. Don't let the fixture touch the reinforcing strips.


Paul Lamar


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