drove home in the rain today and had the wipers going. i guess i didnt tighten the nut down enough on the passenger side wiper arm or i should have used lock tight on it. but i noticed it stopped moving and i turned off the wipers after a few swipes. drove home with them off, took the wiper arm off and the splines in the arm and on the post are pretty much rounded off. are the posts hard to replace? at the moment i put them back on and tighten both nuts and put blue lock tight on each nut as well. hopefully it wont give me problems? idk.

 

You can get the entire assembly pretty cheap on Ebay, or at a junk yard. It would require you to remove the lower windshiel cowl (which are so delicate now after the years of heat/sun). I think I've got a spare D2 arm laying around you could have if ya think that would fix it.

 

so the lower windshield cowl pops in and out, i guess ill have to try and see if i can even pop one off at the junk yard successfully first. at the moment i put blue lock tight on the nut and snugged it down really good. ill see what that does for me, if there are problems in the next rain fall, i guess ill just have to replace the part. was the first thing i did on this D2 was put on D1 arms. i wonder if i can wedge some sand paper between the wiper shaft and the wiper arm, then put the nut back on and tighten it down as the sand paper will give some bight and act like the splines ones did? luckily it was the passenger side and not the driver side. lol

 

I've never had caused take an arm off my D2. Is the post cone shaped? I thought the cone was the actual shaft of the motor. But I could be very wrong.

On other cars I've had if the nut can be cranked hard enough to really snug the arm on, then The cone shape is enough to do the job. The arms are aluminum and the shaft some sort of miracle harness material, so the two bite together. Loctite on the threads, bingo.

I am of course referring to vehicles I've owned in the 1980's, which is the last time I took an arm off.

 

ya, i believe it was cone shaped. found some ideas online of some one wedging a few pieces of thin gauge weld wire in the cone area and cranking down the nut. ill see how my lock tight and tightening the bolt does first. maybe ill try the other method if needed. a few mentioned welding, a few also said JB weld. a spot weld would be great.

 

You will be unlikely to weld the dissimilar metals.

I like the mig wire as splines though. The rock hard bits of wire will dig into the soft arm material and bite. I imagine.

Without seeing the situation, another option would be to drill a hole half on the post and half on the arm, then tap a pin in. Which is essentially making a little key for it. As I say I havnt got any visual reference to say this works. So it probably won't.

 

Well drove it to work today and had the wipers going for a good 45 mins on delay. So far so good. But I think at some point I'll go with the weld wire method