[R-390] Geartrain Alignment Question

Barry N4BUQ at aol.com
Fri Mar 11 23:25:49 EST 2005


As soon as I get the replacement gear clamp, I'm ready to begin aligning the
gears and cams; however, I realize there's something I'm not sure how to do.

There is a relationship between the Geneva drive and the 7.000+ position on
the cams.  I don't know how to determine this.  I assume that when
approaching the 7.000+ position, the Geneva drive's gearteeth are in a
certain orientation.  In other words, it has most likely just clicked the
bandswitch gear just before or just after the 7.000+ position.  The gear
teeth on the Geneva drive are intermittent and do not click the bandswitch
between every band and there is some correlation between it and the 7.000+
position, I just don't know what it is.

I have Scott's CD that illustrates the rebuilding steps and it goes into
detail about setting the actual bandswitch with respect to the 7.000+
position, but it doesn't mention the relationship between that position and
the Geneva drive.

Can someone help me out here?  Hopefully I'm being clear with the question.

Thanks,

Barry(III) - N4BUQ



More information about the R-390 mailing list