85 720 Wiper Arms

[Rickie B]

Lifted up the cover removed the nut ,is it pushed on to a spline?,it does not want to come off,plus i'me being gentle dont want to break anything,i just want to re locate the arm as they sit to high on the windshield.Any sugestions ?? :confused:   Are they adjustable ??

[datzenmike]

Yes it's a brass spline so it's soft. Don't twist or you may strip the spline. Lift the wiper blade off the glass and wiggle. Perhaps a piece of wood to protect the paint and a lever under the arm at the spline to loosen it???

[Rickie B]

Thank you so much will give it a try

[Rickie B]

No luck these arms are not budging, all it did was bend the pannel under the arm, "was able to push pannel back in place" now ill try using channel locks wigling and pulling straight out

[datzenmike]

Go easy! You don't want to break the pivot off altogether.

[Lockleaf]

You can try using a battery terminal puller. It's basically a tiny two jaw puller you can get for a couple bucks at any parts store

[DrvnDrvr]

Try some wd40 or PB blaster on it and let it soak in for a day. Probably come corrosion in there. As stated before, take it easy. The replacements for those are tough to come by.

[Rickie B]

Thanks guys good sugestions because i have not been able to get them off,i like the battery puller idea i believe this will work,plus the WD40

[Lockleaf]

I would suggest pb blaster over wd40. Its much better at breaking free rusted stuff.

[DATSAN]

Have you tried releasing the pressure off the spline, by lifting the wiper all the way up, so that the wiper is "erect?"

 

I know, when I was removing mine, they wouldn't budge until I lifted the wiper arm - all the way up, (like I was replacing the wiper blade,) and then the pressure on the spline was removed, allowing the wiper arm to be removed.

 

If you don't release the pressure on the spring that holds it tight to the windshield, it will never come off. :)

[xsdg]

FYI, I picked up the cheap 3-jaw puller set from Harbor Freight and they worked a treat for exactly this.

 

http://www.harborfreight.com/3-piece-three-jaw-puller-set-8832.html

 

Note that it's rated pretty poorly, so probably not the best thing to grab for heavy-duty jobs, but there are always little jobs where you have to pull something off a splined shaft, and having _any_ puller can be a lifesaver.

[DATSAN]

I'd still like to see if it came off by releasing the spring tension first. Since the arm is aluminum and the spline is steel, there shouldn't be any rust.

 

If it's still stuck, go ahead and buy the puller (and switch the arms around so they pull from the inner side, rather than the outer-side,) and you've got it. :D

[Lockleaf]

Rust no, but galvanic corrosion is definitely a possible issue between dissimilar metals like that. It can be even worse than rust to deal with.

[datzenmike]

Can't see how a gear puller will get this off. The arms aren't on a shaft you can push against.

[DATSAN]

The gear puller would help if you switch the arms of the puller around, so the "hooks" are under the arm, and the center pin is on the spindle.

 

 

 

And, yes, dissimilar metals do affect the corrosion issue, but not usually with aluminum, unless you live near the ocean, or your vehicle has exposed to road salt (used for de-icing the roads.) Then, all bets are off, it might be pretty gummed on, which is where we're back to the gear puller.

[DrvnDrvr]

I would suggest pb blaster over wd40. Its much better at breaking free rusted stuff.

Good point. I mentioned WD because not everyone has a can of PB around.

[datzenmike]

The gear puller would help if you switch the arms of the puller around, so the "hooks" are under the arm, and the center pin is on the spindle.

 

 

 

And, yes, dissimilar metals do affect the corrosion issue, but not usually with aluminum, unless you live near the ocean, or your vehicle has exposed to road salt (used for de-icing the roads.) Then, all bets are off, it might be pretty gummed on, which is where we're back to the gear puller.

 

Ah, not what I was thinking.

[Rickie B]

Thanks guys ,i kinda gave up,but now that i have more options i will definatly try them,i will try the simple way first by lifting the blade up off the glass ,see if that will release the spring tension,great sugestions,the picture is exactly what i have so a puller would work if all else fails.Thanks "wish i could post pics like that"

[Rickie B]

OK,releasing spring tension by lifting arm did not work,even soaked over night in WD40,Next off to find a cheap puller