Generator Rotor Removal

Posted by RodneyCB750K1979 on Apr 01, 2013; 5:51am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Generator-Rotor-Removal-tp4038785.html

I first tried removing the generator rotor from the crankshaft using a gear puller.  No good.  I checked various forums and discovered the rear axle bolt fits the rotor hole (18mm - 1.5mm pitch right handed). I inserted two flat washers inside the rotor opening against the end of the crankshaft because the axle bolt end is tapered. I tightened the bolt to about 40 ft-lbs and the rotor did not release. The flat washers were concave from the force of the axle bolt. I applied some penetrating oil and greased the bolt end and threads well.  After tightening the bolt, I used the wheel spacers on the axle bolt as an impact. I quit after noticing the long bolt was no longer inline with the crank centerline.  I eventually shut the job down and ordered a rotor removal tool - which is only a bolt with a squared-off end.  Please share any experiences or helpful suggestions on removing the generator rotor from the crankshaft.

Attempting to remove rotor with rear axle bolt and oil filter wrench


Flat washers placed inside rotor hole against crankshaft