Re: Testing Overdrives & Gearboxes CORRECTION

[Randall Young <randallyoung@earthlink.net>]

Although it's good to pay attention to which direction is which, there
is no way a hand drill will develop enough torque to harm the sprag
clutch.  After all, it has to handle full engine torque, multiplied by
2nd gear ratio (2.00).  The hand drill's torque is far less, even after
being multiplied by ~5.

Randall

Brian Sanborn wrote:
> 
> Kai,
> 
> The only thing I would add is to make sure your drill is running
> in the right direction... engine direction... clockwise as you
> face the input shaft... think that's right.  If an OD is being
> tested, I think you can destroy the one-way clutch in the OD
> annulus by drive the OD in reverse.  The reverse lock out switch
> would not protect it in this case.