Subject: Torsional Damper
From: rotaryeng
Date: 6/22/2013, 8:15 PM
To: AAA-rotaryeng


Paul,

The box of parts arrived today. My first question is regarding the 6
blocks. There are 3 short ones, and 3 longer ones. So, which half
of the damper do the short and long blocks belong?

As I recall, you plan to keep the splined hub from moving forward
(away from the flexplate) by brazing the psru input shaft so as to
limit the travel of the splined hub, correct? What about the temper
of the shaft? I'm not very comfortable with heating the input shaft.
Maybe 3 or 4 spot welds with the tig welder, bridging two splines
each and allowing it to cool back down between each tack weld.

Mark

The short ones go with the front disk that bolts to the spline plate.
Necessary to clear the 10 mm counter weight bolts.

Yes brazing might be too much heat.
It does not take much to limit spline travel. Staking it with a hammer and center punch might
work.

Paul Lamar


How about holding the two halves together magnetically?  Rare earth magnets
strategically-placed around the peripheries of both moieties could easily do the job.

Gene Kahn

Heat?

Paul Lamar
-- 
The Rotary Engine News Letter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net.
You Tube http://tinyurl.com/beqqxas.
Copyright 1998-2013 All world wide rights reserved.