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Worn Spline on Wiper Arm, Stripped Mostly

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  #1  
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Erness Wild
 
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Default Worn Spline on Wiper Arm, Stripped Mostly - 03-05-2009 , 04:03 PM






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.

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Paul
 
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Default Re: Worn Spline on Wiper Arm, Stripped Mostly - 03-05-2009 , 04:39 PM






Erness Wild wrote:
Quote:
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?


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  #3  
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HLS
 
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Default Re: Worn Spline on Wiper Arm, Stripped Mostly - 03-05-2009 , 04:39 PM




"Erness Wild" <erness.wild (AT) nospam (DOT) gmail.com> wrote

Quote:
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.
A trip to the wrecking yard is likely to be your best fix.



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Nate Nagel
 
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Default Re: Worn Spline on Wiper Arm, Stripped Mostly - 03-05-2009 , 05:49 PM



Erness Wild wrote:
Quote:
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.
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

--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel


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  #5  
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Erness Wild
 
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Default Re: Worn Spline on Wiper Arm, Stripped Mostly - 03-05-2009 , 08:25 PM



No, it doesn't have the nut on top. Pushes on with a neet locking
clip. Surprised the clip still works. No rust. I guess I'm looking for
a trip to the wreckers only there's nothing pre 1995 in the yards
around here. Mine's older. Epoxy might be something. Somebody else
mentioned drilling a hole through it and the shaft head and putting a
shear pin in. Probably just mess up the shaft trying something like that.
Thanks for the ideas.

Nate Nagel wrote:
Quote:
Erness Wild wrote:
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.

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


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  #6  
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HLS
 
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Default Re: Worn Spline on Wiper Arm, Stripped Mostly - 03-05-2009 , 09:32 PM




"Erness Wild" <erness.wild (AT) nospam (DOT) gmail.com> wrote

Quote:
No, it doesn't have the nut on top. Pushes on with a neet locking clip.
Surprised the clip still works. No rust. I guess I'm looking for a trip to
the wreckers only there's nothing pre 1995 in the yards around here.
Mine's older. Epoxy might be something. Somebody else mentioned drilling a
hole through it and the shaft head and putting a shear pin in. Probably
just mess up the shaft trying something like that.
Thanks for the ideas.
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.



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  #7  
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Steve W.
 
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Default Re: Worn Spline on Wiper Arm, Stripped Mostly - 03-06-2009 , 01:17 AM



Erness Wild wrote:
Quote:
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.
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.

--
Steve W.


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  #8  
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Vic Smith
 
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Default Re: Worn Spline on Wiper Arm, Stripped Mostly - 03-06-2009 , 06:03 AM



On Thu, 05 Mar 2009 20:25:13 -0500, Erness Wild
<erness.wild (AT) nospam (DOT) gmail.com> wrote:

Quote:
No, it doesn't have the nut on top. Pushes on with a neet locking
clip. Surprised the clip still works. No rust. I guess I'm looking for
a trip to the wreckers only there's nothing pre 1995 in the yards
around here. Mine's older. Epoxy might be something. Somebody else
mentioned drilling a hole through it and the shaft head and putting a
shear pin in. Probably just mess up the shaft trying something like that.
Thanks for the ideas.

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


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  #9  
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Erness Wild
 
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Default Re: Worn Spline on Wiper Arm, Stripped Mostly - 03-08-2009 , 03:05 PM



Canada. All of the older cars here, have since long gone to the mini
steel mills. You still have ancient old car graveyards? You're lucky.
I had a further look at the wiper arm connection and there appears to
be a groove like you would find in a lawn mower, for a shear pin. I
guess the only way to check that out would be to pull the other wiper
arm off and have a look. I'm curious.
Thick foil? Na. I'm sure there's great force put on the post to turn
the wiper arm. I'm also sure the part store guys will be having a good
laugh at any attempt to fix it that way. Don't forget it's in the best
interests of the manufacturers to make parts that have to be replaced.
And it's always the challenge of the consumer to try and figure out
out to make something last twice as long. And on goes the battle.

Steve W. wrote:
Quote:
Erness Wild wrote:
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.

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.


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  #10  
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Erness Wild
 
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Default Re: Worn Spline on Wiper Arm, Stripped Mostly - 04-06-2009 , 12:16 PM



(I'm adding to my own post),
I succeeded in repairing the old wiper arm.
The fix was easier than I thought. Thanks for all
the advise.

Erness Wild wrote:
Quote:
And it's always the challenge of the consumer to try and figure out out
to make something last twice as long. And on goes the battle.

--
A website is a place, where, when you go there, it does everything
possible to distract you, from finding the information you came there
to see.- E.W.


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