replace wiper arms?



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  1. #1
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    replace wiper arms?

    Hi,

    Second question from a new member.

    The windshield wipers on my '97 T & C are not working. Basically, the hole in the base of the wiper arm is stripped. There are facets cut into the inside of the hole, which ride on a spline driven by the wiper motor, and these are ground smooth. But the grooves on the spline seem ok.

    Until now ive just retightened the nut on the wiper arm, but now when i run the wipers, the arms just raise a little bit. I thought about putting loctite in the hole attaching the wipers, but this might seep in and lock the whole thing.

    Is replacing the whole wiper arm the best fix?

    Im thinking these splines the arms ride on are a harder material, and should be ok.

    Thanks!

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  3. #2
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    A new wiper arm may be the safest solution. A couple of points:
    - it is very easy to tighten the wiper arm down and not really get it tight as the splines / grooves aren't lined up properly. A second tightening may be required.
    - cleaning the spline gears (both surfaces) with a wire brush may facilitate the engagement of the splines with the grooves.
    2007 GC SXT - Magnesium - S&G - 3.8L - 115,600 kms
    2002 GC Sport - Stone White - 3.3L - 314,240 kms
    2003 Jeep TJ Sport - 4.0L - 246,430 kms

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    On the new cars we build the wiper arms don't have the spline imprints until we install the wipers. The process of tightening the wiper arm nut imprints the grooves in the arm.

    I'd say if the arm is stripped out your best be would be new, or usable junkyard replacements. If you get a chance to pull a set of wipers off a donor at a yard, DO NOT move the wiper in a motion that mimics the travel of the wiper, you'll destroy the grooves. Push down towards the glass on the hinge point of the wiper. It should rock loose on the wiper shaft and then you can lift it off. I did literally hundreds this way in the plant as repairs and never stripped a one.
    2001 Grand Caravan Sport 3.3 100K plus...

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    That explains a lot and is the reason I have to keep moving the wiper arm back and forth (with no wiper pressure on the windshield) to get it to settle in a mated location.
    2007 GC SXT - Magnesium - S&G - 3.8L - 115,600 kms
    2002 GC Sport - Stone White - 3.3L - 314,240 kms
    2003 Jeep TJ Sport - 4.0L - 246,430 kms

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    Quote Originally Posted by n9mxq View Post
    If you get a chance to pull a set of wipers off a donor at a yard, DO NOT move the wiper in a motion that mimics the travel of the wiper, you'll destroy the grooves. Push down towards the glass on the hinge point of the wiper. It should rock loose on the wiper shaft and then you can lift it off. I did literally hundreds this way in the plant as repairs and never stripped a one.
    The wiper arms on older cars or donor cars can be the shaft pretty good. Another trick is to use a big screwdriver or wooden wedge to put moderate upward pressure on the arm from beneath (as if you are trying to pry the arm off), then keeping the upward force, with your other hand or your helper, give the shaft a gentle tap with a hammer. Pop! Remember to remove the screw first (), and, as n9 said, don't rotate it.

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    Go old school, tie a string to the arms and just pull.This trick will work if they break or quit in a rain storm.Remember to carry some string just in case.
    But a junkyard replacement should work fine as well.
    1994 Dodge Caravan SE 3.0L 448,000km and counting
    1978 V8 AMC Pacer DL(sold my 16 yr love affair)
    1974 AMC Gremlin

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    Quote Originally Posted by V8Pacer View Post
    Go old school, tie a string to the arms and just pull.This trick will work if they break or quit in a rain storm.Remember to carry some string just in case.
    But a junkyard replacement should work fine as well.
    But a string only works for one swipe.. Now a stick.....
    2001 Grand Caravan Sport 3.3 100K plus...

    As of 5-25-09 I am no longer employed at Chrysler.

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    Quote Originally Posted by V8Pacer View Post
    Go old school, tie a string to the arms and just pull.This trick will work if they break or quit in a rain storm.Remember to carry some string just in case.
    But a junkyard replacement should work fine as well.
    I assume you are talking about getting the wiper off, using perhaps a piece of nylon twine.
    How do you hook the string up, maybe a loop around the post and bring the two end pieces up through the loop, and yank?
    Interesting as I have never heard of this method. Will it work on the rear wiper as well, or do I need a wire cable hooked to the Jeep? That's on there like it's been welded.
    2007 GC SXT - Magnesium - S&G - 3.8L - 115,600 kms
    2002 GC Sport - Stone White - 3.3L - 314,240 kms
    2003 Jeep TJ Sport - 4.0L - 246,430 kms

  10. #9
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    one string through the drivers side and one through the pass side of vech.Pull drivers to lift wipers across windshield and pull the pass. to bring it back down.I did this years ago when the wiper motor went on my old 80 caprice in Virginia US.Annoying but works if your suck in a rain storm.
    1994 Dodge Caravan SE 3.0L 448,000km and counting
    1978 V8 AMC Pacer DL(sold my 16 yr love affair)
    1974 AMC Gremlin

  11. #10
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    Quote Originally Posted by V8Pacer View Post
    one string through the drivers side and one through the pass side of vech.Pull drivers to lift wipers across windshield and pull the pass. to bring it back down.I did this years ago when the wiper motor went on my old 80 caprice in Virginia US.Annoying but works if your suck in a rain storm.
    Sounds very innovative. How are going to do that and talk on your cell phone, change CDs, and adjust the heater all at the same time?
    I suppose for wipers that don't run parallel, like on my 4th Generation, the string method may need a couple of pullys or something.
    2007 GC SXT - Magnesium - S&G - 3.8L - 115,600 kms
    2002 GC Sport - Stone White - 3.3L - 314,240 kms
    2003 Jeep TJ Sport - 4.0L - 246,430 kms

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