Re: Solved: Vibration Damper Removal - 1928 5-26

Posted by 28Pack526 On 2014/3/28 17:08:47

Hi easyed, My interpretation of this particular unit's functionality is that the rear flange, which is indeed keyed onto the hub, is locked in sync to the crank, but the outer flywheels are (or at least should be) free to move on the hub in response to engine pulses and are pressed against the drive pulley / rear flange by the 6 springs. A friction disk on the front between the damper and pulley would certainly make sense, but none was installed on mine when removed (just the two a fore mentioned steel shims).

Rather than lock it up as claimed in my last post, I think perhaps I'm going to CNC two 0.025" aluminum shim rings to place between the damper and pulley. That should impart some friction while still affording functionality. My caliper tells me that something with a 3-1/8" ID x 4-5/8" OD should work nicely...