Shaft seems okay. Is there a fix for a worn spline on a Trico wiper arm for Pontiac? Looks like the arm part is cast. I suspect electrical tape or duct tape isn't the way to go. Anybody try copper / brass pipe insert? Don't want to buy a new arm for an old car if I don't have to.
How about epoxy?
A trip to the wrecking yard is likely to be your best fix.
is this the kind that tightens down with a nut? If so, I have had good luck in the past simply cleaning out the stripped metal from the splines in the shaft with a pocketknife and wire toothbrush and reinstalling. VW uses these as well and have the same problem.
If they are the traditional American type you're probably stuck getting another arm.
good luck
nate
There are a lot of old cars here in the American south, in the wrecking yards. Could be that your model shares arms with a lot of other GM cars. Maybe even later model ones. The wrecking yard folks can probably steer you in a reasonable direction.
Well if it's the casting itself about the only reliable fix is a new/used arm. What model is it? Many of them interchange. Where are you located?
You could try using some thick foil and see if it holds.
A new arm will avoid stripping the shaft. Besides that, in my experience arm spring tension decreases with age. A new arm will wipe better. If it's any good. This is especially important in knocking down salt streaking. Seem to remember an arm costing about 20 bucks last time I bought one. Aftermarket, with blade. Nothing was stripped, but even with new blades the old arm had lost tension and wasn't pressing the blade against the windshield hard enough.
--Vic
What did you finally do? Epoxy?
Could last a long time.
I just had a failure of the windshield washers in my Dodge full size van. Those nozzles are on the wiper arms, and never worked worth a damn.
I trudged down to the Chrysler dealership thinking that I could buy one of the nozzles for a couple of bucks, BUT....turns out these are not accessed in the catalog, and you have to buy new arms complete with the little plastic shitteauxs for $50 per side.
I bought a universal kit ($15) at Autozone and mounted the nozzles through the hood. Works better than the originals, and I am freed from the stranglehold of the manufacturer and the dealership.
Necessity is the very essence of invention.
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