Subject: Torsional Damper
From: rotaryeng
Date: 6/22/2013, 8:13 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


I will use a small tack weld across two splines, two or three places.  The
welds will need to be flush so the input shaft will pass through the seal.
 That should be plenty to keep the spline plate assy from rubbing against
the seal.

BTW, I double-checked and my spline plate is attached with a dozen, or so,
AN3 bolts.  I previously stated incorrectly they were AN4.

Mark

That will help. You can get button head 10-32.

Paul Lamar

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