70, Wiper arm problem
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Instructor
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From: McDonough Georgia
70, Wiper arm problem
On my 70, the wipers turn on and operate correctly, but don't quite make it down to the full park position when I turn them off. I can give them a little push and they slide to the regular park spot and the door can close. I've got the linkage adjusted such that they are as low as they can be. I'm wondering if there is too much play in the linkage or something. Has anyone else had this problem?
I've been told that the "A Screw" needs to be adjusted, but I can't seem to find it. I removed my passenger wiper arm I don't see a screw anywhere. If someone could please post a picture I can then determine if I have the wrong wiper arms. Many thanks in advance.
Here's my passenger arm with the invisible "Screw A"
Al
I've been told that the "A Screw" needs to be adjusted, but I can't seem to find it. I removed my passenger wiper arm I don't see a screw anywhere. If someone could please post a picture I can then determine if I have the wrong wiper arms. Many thanks in advance.
Here's my passenger arm with the invisible "Screw A"
Al
Last edited by ONeill202; Mar 18, 2013 at 08:21 PM.
Thread Starter
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From: McDonough Georgia
Race Director
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From: North of Toronto - Ontario
Just trying to see where the problem is exactly
Are they actually trying to go into the park position and not going far enough then or just stopping at the bottom of the stroke?
Mooser
Are they actually trying to go into the park position and not going far enough then or just stopping at the bottom of the stroke?
Mooser
Race Director
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From: North of Toronto - Ontario
Oh, and those are the later style arms so that's probably why there's no A screw.
I believe they were the "service replacement" arms and are correct from a dimensional standpoint.
Mooser
One thing to keep in mind is that when setting the arms, you need to set them so they would park 1" BELOW the park pad stop. a frequent mistake is people seem to adjust them to stop on the pad.
Mooser
I believe they were the "service replacement" arms and are correct from a dimensional standpoint.
Mooser
One thing to keep in mind is that when setting the arms, you need to set them so they would park 1" BELOW the park pad stop. a frequent mistake is people seem to adjust them to stop on the pad.
Mooser
Team Owner
Joined: Sep 2006
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From: Westminster Maryland
Hi on,
Here's a picture of the passenger's side arm and blade; you can see the difference.
Here's the screw 'A' too.
I don't know if there will be enough adjustment in your linkage to make up for the difference in configuration.
Is it possible the vacuum switch under the passenger's side arm, (you see the plunger in the last picture), isn't being depressed enough to send the o.k. to close signal... and it's position needs to be adjusted?
Regards,
Alan
Here's a picture of the passenger's side arm and blade; you can see the difference.
Here's the screw 'A' too.
I don't know if there will be enough adjustment in your linkage to make up for the difference in configuration.
Is it possible the vacuum switch under the passenger's side arm, (you see the plunger in the last picture), isn't being depressed enough to send the o.k. to close signal... and it's position needs to be adjusted?
Regards,
Alan
Last edited by Alan 71; Mar 19, 2013 at 03:46 PM.
Thread Starter
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From: McDonough Georgia
The driver side arm reaches the correct position. The passenger side remains high enough on the winsheild that the vacuum switch doesn't get depressed. I'll post additional pics to night to show where it comes to rest. Their is no more ajustment on the transmision I've moved it to the far right with no improvement.
A brief history... I bought this car in July with the wiper motor broken. I bought a new motor and eventhough the the arms moves I can't get the door to close because the left arm will not move to park. I know the motor is moving into the park position because I removed the cover and watched it move to park.
A brief history... I bought this car in July with the wiper motor broken. I bought a new motor and eventhough the the arms moves I can't get the door to close because the left arm will not move to park. I know the motor is moving into the park position because I removed the cover and watched it move to park.
Race Director
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From: North of Toronto - Ontario
Also, a "frame-less" blade is thinner (shorter up and down) and allows for more clearance to the door allowing it to close fully.
HIH
Mooser
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St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
The problem may be that the arms are not correct for the car.... Below is a picture of the correct arms.
Do you know what the arms came off of?
Do you know what the arms came off of?
Team Owner
Joined: Sep 2006
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From: Westminster Maryland
Hi,
Notice in my picture that it's not the wiper arm that depresses the plunger, it's the linkage arm on the wiper transmission.
As long as the door doesn't hit the wiper arm you have when closing, you may be able to adjust the vacuum switch to be triggered by the transmission arm as mouser suggests.
Regards,
alan
Notice in my picture that it's not the wiper arm that depresses the plunger, it's the linkage arm on the wiper transmission.
As long as the door doesn't hit the wiper arm you have when closing, you may be able to adjust the vacuum switch to be triggered by the transmission arm as mouser suggests.
Regards,
alan
Thread Starter
Instructor
Joined: Jul 2012
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From: McDonough Georgia
Thread Starter
Instructor
Joined: Jul 2012
Posts: 174
Likes: 6
From: McDonough Georgia
Hi,
Notice in my picture that it's not the wiper arm that depresses the plunger, it's the linkage arm on the wiper transmission.
As long as the door doesn't hit the wiper arm you have when closing, you may be able to adjust the vacuum switch to be triggered by the transmission arm as mouser suggests.
Regards,
alan
Notice in my picture that it's not the wiper arm that depresses the plunger, it's the linkage arm on the wiper transmission.
As long as the door doesn't hit the wiper arm you have when closing, you may be able to adjust the vacuum switch to be triggered by the transmission arm as mouser suggests.
Regards,
alan
You're correct it's the linkage arm and it too doesn't depress the vacuum switch because it doesn't come down enough. I can adjust the vacuum switch to make the door close but it will only make the door land on top of the passenger wiper.
I was told that the wiper arm I have is for a later model but it should work. I'm starting to wonder if that's true and what is needed is the correct year wiper arm.
Race Director
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From: North of Toronto - Ontario
Unfortunately my arms are in a box, and the linkage is in a different box, and the door linkage is hanging from the ceiling, and the well, you get the idea.
Running the frameless blades really does help the door clearance, they are substantially thinner.
And make sure the drivers side is trying to go past the stop so that it takes all the play out of the linkages and pulls the passenger one down tight.
Mooser
Burning Brakes
Joined: Sep 2009
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From: Western New York
I haven't been under that wiper door in years, but as I recall, isn't there an adjustment on the linkage under the door? I thought there was some kind of piece like a tie rod end that has a screw in the end of it that can be adjusted. Or maybe the old mind is just starting to go. 
Duane
Duane
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From: McDonough Georgia
I have the same arms as yours on my 72 and they will work. Didn't when I got the car, afterwards the door closed on them, then finally got them to work properly using all available adjustments and lots' of screwing around.
Unfortunately my arms are in a box, and the linkage is in a different box, and the door linkage is hanging from the ceiling, and the well, you get the idea.
Running the frameless blades really does help the door clearance, they are substantially thinner.
And make sure the drivers side is trying to go past the stop so that it takes all the play out of the linkages and pulls the passenger one down tight.
Mooser
Unfortunately my arms are in a box, and the linkage is in a different box, and the door linkage is hanging from the ceiling, and the well, you get the idea.
Running the frameless blades really does help the door clearance, they are substantially thinner.
And make sure the drivers side is trying to go past the stop so that it takes all the play out of the linkages and pulls the passenger one down tight.
Mooser
Maybe it has something to do wanting everything to work or something like that -- dono...
Thread Starter
Instructor
Joined: Jul 2012
Posts: 174
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From: McDonough Georgia
I haven't been under that wiper door in years, but as I recall, isn't there an adjustment on the linkage under the door? I thought there was some kind of piece like a tie rod end that has a screw in the end of it that can be adjusted. Or maybe the old mind is just starting to go.
Duane
Duane
The old mind is working fine. You're correct. There's an adjustment in the center called the transmission.
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St. Jude Donor '22
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From: North of Toronto - Ontario
Thread Starter
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From: McDonough Georgia
Here's a pic of the transmission linkage pulled all the way to the right and the driver side arm removed. I removed the driver side to make sure it wasn't preventing the passenger linkage from reaching park.
Here's a pic of the passenger arm failing to reach the park position.
Here's a another pic of my problem from HELL:
Still no luck the wiper will not reach park.
Here's a pic of the passenger arm failing to reach the park position.
Here's a another pic of my problem from HELL:
Still no luck the wiper will not reach park.
Last edited by ONeill202; Mar 20, 2013 at 07:23 PM.
Thread Starter
Instructor
Joined: Jul 2012
Posts: 174
Likes: 6
From: McDonough Georgia
Hi on,
Here's a picture of the passenger's side arm and blade; you can see the difference.
Here's the screw 'A' too.
I don't know if there will be enough adjustment in your linkage to make up for the difference in configuration.
Is it possible the vacuum switch under the passenger's side arm, (you see the plunger in the last picture), isn't being depressed enough to send the o.k. to close signal... and it's position needs to be adjusted?
Regards,
Alan
Here's a picture of the passenger's side arm and blade; you can see the difference.
Here's the screw 'A' too.
I don't know if there will be enough adjustment in your linkage to make up for the difference in configuration.
Is it possible the vacuum switch under the passenger's side arm, (you see the plunger in the last picture), isn't being depressed enough to send the o.k. to close signal... and it's position needs to be adjusted?
Regards,
Alan