Actually I think they got it from the Chilton people. The 54-63 Chilton's lists the same procedure, verbatim. Interestingly enough, the 61 Motor's says do the with it off but then calls for the use of a vacuum gauge to do it with the engine running. Several Haynes say off, some of the model specific say off. Guess it's to each his own with hydraulics. Obviously, since I have solids I will do it with the engine off.

Last edited by Bob61Apache; 04/26/2008 2:33 AM.