At 08:44 PM 8/17/2012, mcneely4@cox.net wrote:
>However, I was unable to get the splines that remain to bite into
>the metal of the wiper arm axle adequately to hold the wiper
>arm.  At first I thought I had done so, as the wiper arm seemed to
>anchor solidly on the shaft.  But upon trying the wiper, it ran for
>three minutes by my watch, with water on the windshield, then worked
>loose and flopped around again.

Check that you're not bottoming out on something, including the
bottom of your tapped threads.  There's a definite dimensional limit
to how far you can carry this before the hole in the arm is simply too big.

There's a low-strength version of Loc-tite available for setscrews
and the like, may be worth a try if you can find some.  See prep
notes next paragraph.

Or you could try the regular-strength (blue) stuff carefully, but
there's danger that the bond might be too strong and leave the stuff
inside the dash open to damage under an overload.  You also might
need to use a prep treatment (paint splines with prep agent keeping
it carefully masked off places you don't want to harden, let it dry,
paint socket with Loc-tite and assemble).  If so, Amazon sells spray
cans of the stuff that you can spray on a Q-tip to apply.

Don't even think about the red stuff.

Yours,
David