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Chryco's Tech Shop => Electrical => Topic started by: shadango on May 25, 2017 - 03:04:20 pm

Title: Wipers reverse but dont park
Post by: shadango on May 25, 2017 - 03:04:20 pm
Used search and came across a plethora of hints and info about 2 speed wipers not parking.

One is that the ground for the switch inside needs fixed.

However , those threads seem to say that if the ground is bad or not there, the wiper motor wont reverse at all.

I took a peek at mine again...been this way since 2010...LOL....

They reverse when I turn off the switch but do not keep going so as to park....they do NOT hit the stainless moulding, which I know is another issue and which I may eventually have as my moulding sticks up some.

But the wipers never get TO the moulding to keep them from parking.

The wipers seem to go to the correct spot at the edge of the windshield during the sweep, and changing the position of the arm itself on the splines doesnt help.....because then the wiper doesnt wipe enough....

SO.....sounds like a linkage or cam or motor issue right?  Quagmire , in a 2010 post to someone else, hinted that the cam could be a problem in this situation.

As always, I prefer a "dont fix if it aint broke" approach.....the wipers have worked well enough for 7 years....rarely drive in rain.

But when I do, they are rackity (lots of clanking noise) and as I said they dont park....so I am considering another attempt to fix these...LOL
Title: Re: Wipers reverse but dont park
Post by: mopar jack on May 26, 2017 - 12:12:05 am
If the wipers stop at the base of the windshield you may need to adjust so that it parks lower on the trim. The wiper motor has a flat plate where the wires are located and you can loosen the screws (3) that hold the plate and rotate it to change the parking position. I'll see if I can find a service manual pic.
Title: Re: Wipers reverse but dont park
Post by: shadango on May 26, 2017 - 05:43:40 am
If the wipers stop at the base of the windshield you may need to adjust so that it parks lower on the trim. The wiper motor has a flat plate where the wires are located and you can loosen the screws (3) that hold the plate and rotate it to change the parking position. I'll see if I can find a service manual pic.

Crikey!  That would be great if that is all it is!  LOL

I do have manual and am looking at it now....

I dont see anything referencing a plate for adjustment.......in the troubleshooting section under "wipers do not park correctly" all it says is either the arms are on the shafts at the wrong clocking or "loose clutch spring on crank - replace clutch spring , cam and release"..........

ANd lower in the section they talk about determining if it needs adjustment, and applying upward force etc and measuring the play, but dont say how to adjust.....unless I am missing something.....
Title: Re: Wipers reverse but dont park
Post by: JayBee on May 26, 2017 - 08:21:31 am
That "plate" reference is for variable/3 speed wiper motors. Yours is a 2 speed, correct?
Title: Re: Wipers reverse but dont park
Post by: shadango on May 26, 2017 - 01:25:09 pm
That "plate" reference is for variable/3 speed wiper motors. Yours is a 2 speed, correct?

Correct.....2 speed.  So that wouldnt apply.
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on May 26, 2017 - 04:05:40 pm
So, it's been this way since 2010... How long have you owned it? Did this just develop or has it been like this as long as you've owned the car?

Cause the wrong linkage or crank arm could cause problems too....
Title: Re: Wipers reverse but dont park
Post by: shadango on May 26, 2017 - 06:40:41 pm
So, it's been this way since 2010... How long have you owned it? Did this just develop or has it been like this as long as you've owned the car?

Cause the wrong linkage or crank arm could cause problems too....

Owned it since 2007......been this way the entire time......

The car was apart for paint prior to me getting it but not sure they would have had that stuff apart....I mention that because I had posted back in 2010 (I think) that the linkage had come off the drivers side........and at that time it looked like a non oem fastener was on there....

Is there an easy way to tell if I have the right or wrong linkage without pulling it all out of the car?????    :banghead:
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on May 26, 2017 - 07:00:46 pm
Not sure on the two speed stuff,Two speed should have the plastic cam in the linkage, three speed doesn't
Title: Re: Wipers reverse but dont park
Post by: shadango on May 26, 2017 - 07:03:29 pm
Thanks!  Guess its time to pull the cowl again.....    :bigsmile:
Title: Re: Wipers reverse but dont park
Post by: 734406pk on May 26, 2017 - 07:09:58 pm
 :iagree: You may have some three speed linkage parts in there. There are part numbers stamped into the crank arm and link. They are specific for a two speed. The cross bar that connects wiper to wiper is the same on 2/3 speed wipers.
 
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on May 26, 2017 - 07:10:05 pm
The difference is profound enough you can probably see it through the screens.....

Three speed linkage
Title: Re: Wipers reverse but dont park
Post by: xtopfuel on May 27, 2017 - 06:05:50 am
just an FYI as most know I had some issues and wipers parking was one, I found that my car sat for many many moons and wiring was not bad just dirty and corroded, as I said on a different thread I removed bulk head to find corrosion, cleaned and lubed I also has excessive corrosion and dirt build up on wiper switch, cleaned and lubed and they park now
Title: Re: Wipers reverse but dont park
Post by: shadango on May 27, 2017 - 07:13:42 am
just an FYI as most know I had some issues and wipers parking was one, I found that my car sat for many many moons and wiring was not bad just dirty and corroded, as I said on a different thread I removed bulk head to find corrosion, cleaned and lubed I also has excessive corrosion and dirt build up on wiper switch, cleaned and lubed and they park now

But, prior to the cleaning, did they REVERSE at all?  Mine reverse, but stop about 4-6 inches above the stainless steel trim at the bottom....
Title: Re: Wipers reverse but dont park
Post by: shadango on May 27, 2017 - 08:05:04 am
SO it looks like my linkages are correct as far as I can see.....I shot this video to illustrate my wiper issues....

I figure a picture is worth a million words, so a video should be worth a million million words. LOL
https://www.youtube.com/watch?v=RA36B4b1KPs (https://www.youtube.com/watch?v=RA36B4b1KPs)

I also just got done cleaning the connections of the wiring between the wiper motor and the bulkhead -- pulled the connectors out of the plastic blocks and cleaned best I could.  Sprayed some electronics cleaner into the bulkhead connector for the wipers (fast drying) then blew out with compressed air.....put dielectric grease on all connections and reassembled.  No change.  Next I guess will be the switch/ground.....

I pulled the dash apart to check the ground and lo and behold I started having flashbacks....I added a seperate ground for the switch/frame  a long time ago....you can see it ...its the yellow connector, near the speedo....the dangling blue conector is for the extra LED light strip I added to the dash light.....it goes to the metal dash light "frame".....
(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20misc/20170527_093419_zpskr8lw3l7.jpg)

I also tried running a seperate jumper just now from the switch's frame itself to the negative battery terminal and also from the switch housing to the battery....makes no difference in the parking.

So it has to be either that "cam" assembly or the motor itself right?

As an aside, forgot how much FUN that dash is,....lol.....put it all together and tested...turns out I popped the dimmer switch plug off and had to pull it apart and reassemble again.....LOL......oh the memories....   :bigsmile:




Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on May 27, 2017 - 11:21:03 am
I'm thinking it'll be in the cam assembly, probably gonna need to dig into a service manual for this one....
Title: Re: Wipers reverse but dont park
Post by: shadango on May 27, 2017 - 11:31:37 am
I'm thinking it'll be in the cam assembly, probably gonna need to dig into a service manual for this one....

As you can see in the video, seems like there is some wiggling in the cam assembly.......maybe someone can say if thats normal or not??
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on May 27, 2017 - 12:00:32 pm
I haven't owned a car with two speed wipers in over 25 years & back then I owned a couple parts cars never a running driving car so I've never really paid attention.....  Looking at pictures it looks like the plastic cam could wear & not effectively drive the arm.....
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on May 27, 2017 - 12:16:07 pm
Between the video & just logic it really looks like the cam is where you problem is... I've searched Ebay for parts & there isn't much, one guy has a incomplete setup that he wants $145 for.... I'd wait & watch, lots of folks replace the two speed stuff cause getting a good motor & switch can be a challenge, you've got both of those, just need the stuff thats normally not a problem....   If it were me, I'd look for a complete really nice part it should have the rubber boot that keeps dirt & debris from getting in & causing wear, a nice drive cam, probably a couple springs & clips... And a drive arm with good drive lugs....
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on May 27, 2017 - 12:31:26 pm
After looking around some more it appears they reproduce the plastic bushing.....   I'd give one of these guys a call....
 
Jim Slotts   412.295.1333     Email:  jsrestorations@rocketmail.com

Bruce Somer  951-675-9551
Title: Re: Wipers reverse but dont park
Post by: xtopfuel on May 27, 2017 - 06:11:01 pm
could very well be
Title: Re: Wipers reverse but dont park
Post by: shadango on June 17, 2017 - 01:07:49 pm
I'm thinking it'll be in the cam assembly, probably gonna need to dig into a service manual for this one....


I tore apart the linkage today (that little metal retaining clip holding the crank bracket to the motor SUCKS!  LOL)

So here is a pic from the svc manual --

(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/concealed%20wiper%20parts%20diagram_zpspvqdwuat.jpg)

I seem to be missing some parts.....the "spring washer" and the cover are obvious ones.....the whole cam assembly is sloppy when assembled....

But also the cam itself may be damaged?

Also looks like the metal part on the top of the pic irectly below has a groove worn into it....

(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/20170617_125847_zpsqwcvpmds.jpg)

(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/20170617_125515_zpsjlaglxcw.jpg)

(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/20170617_125459_zpsblx1yqv7.jpg)

(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/20170617_125436_zpst0alqhjs.jpg)

(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/20170617_123351_zpsnxve9eop.jpg)

(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/20170617_123343_zps46sjco42.jpg)



I have no idea what this is...is was lodged in the drain hole directly under the wiper motor/crank area.....  Its plastic....

(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/IMG_20170617_131651_zpsuw7vsjnk.jpg)

(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/IMG_20170617_131622_zpsfkvlav0v.jpg)

Found this picture on ebay of a parts kit 
(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/new%20parts%20onebay%20pic_zpsyjlndlqf.jpg)

Anyone have pics of their parts so I can compare??
Title: Re: Wipers reverse but dont park
Post by: JayBee on June 18, 2017 - 10:41:15 am
That thing you found looks like the rubber seal on the end of the motor, first picture.
That "groove' is definitely not suppose to be there and it seems you're missing that special spring.
The rest of the pictures show one that I took apart (kind of in steps).
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on June 18, 2017 - 11:33:36 am
Looks like you need to buy that kit.... And this...

  http://www.ebay.com/itm/ORIGINAL-2-SPEED-WIPER-CRANK-BOOT-W-CLIP-70-71-72-73-74-CUDA-CHALLENGER-/162519978792?hash=item25d6f21328:g:Y0YAAOSwMmBVzoaL&vxp=mtr (http://www.ebay.com/itm/ORIGINAL-2-SPEED-WIPER-CRANK-BOOT-W-CLIP-70-71-72-73-74-CUDA-CHALLENGER-/162519978792?hash=item25d6f21328:g:Y0YAAOSwMmBVzoaL&vxp=mtr)
Title: Re: Wipers reverse but dont park
Post by: JayBee on June 18, 2017 - 12:26:09 pm
Sorry, after looking closer it looks like you DO have that coil spring with the oddball end, though it's hard to tell if it's broken anywhere.
Title: Re: Wipers reverse but dont park
Post by: AARuFAST on June 18, 2017 - 11:01:55 pm
You do not have electrical problem
 if it stops any place on windshield. You have an open park circuit
Your issue is worn parts and lubrication.
The rubber grommet you cannot identify I believe is the cover retainer that covers the
CAM next to the cam arm.

Do you have the correct wiper arms?





Title: Re: Wipers reverse but dont park
Post by: 4Cruizn on June 19, 2017 - 11:58:10 am
Maybe a stupid suggestion but this happened to me and I found that I needed the car to be running to get the wipers to park correctly?  Not sure why . . .
Title: Re: Wipers reverse but dont park
Post by: shadango on June 19, 2017 - 03:18:37 pm
Maybe a stupid suggestion but this happened to me and I found that I needed the car to be running to get the wipers to park correctly?  Not sure why . . .

Nope.....doesnt matter in my case.....its something mechanical at this point I think given the state of the parts....
Title: Re: Wipers reverse but dont park
Post by: AARuFAST on June 19, 2017 - 07:04:44 pm
I should have directed you to Kim

Contact Kim  she restores and sells parts for wiper motors.


kim@passion4mopars.com

I'd start with cleaning up the parts looking at the wear and tear.
Purchase the parts kit if it fits your setup.
The slot on the cam arm looks worn.
Kim knows a lot of us on here. 

Jim Slotts restores electrical. Switches.

Title: Re: Wipers reverse but dont park
Post by: shadango on June 19, 2017 - 10:43:31 pm
I should have directed you to Kim

Contact Kim  she restores and sells parts for wiper motors.


kim@passion4mopars.com

I'd start with cleaning up the parts looking at the wear and tear.
Purchase the parts kit if it fits your setup.
The slot on the cam arm looks worn.
Kim knows a lot of us on here. 

Jim Slotts restores electrical. Switches.

Thanks! I will try Kim.  I was under the impression she just does the motors.....crossing my fingers!
Title: Re: Wipers reverse but dont park
Post by: JayBee on June 20, 2017 - 09:09:30 am
Here's a thought. What if the previous owner moved the wipers on their splines to compensate for an inadequate arm sweep due to the deep groove pictured. Then consequently the reverse (park) travel would be affected.

Title: Re: Wipers reverse but dont park
Post by: shadango on June 20, 2017 - 10:31:22 am
Yeah I was half tempted to try and weld or epoxy that groove up and see if it helped but the plastic also has issues.....I dont know exactly how it works so I cant be sure what is the major factor.

If I can find new(er) parts I will just swap them out.

I have tried moving the wiper arms on the splines and the range is just not large enough....which I agree is probably related to that groove.....and that groove was caused by the arm not being held properly in place by the missing wavy  washer (I assume).
Title: Re: Wipers reverse but dont park
Post by: shadango on June 22, 2017 - 05:43:42 am
That thing you found looks like the rubber seal on the end of the motor, first picture.
That "groove' is definitely not suppose to be there and it seems you're missing that special spring.
The rest of the pictures show one that I took apart (kind of in steps).


Thanks for this!!

So I have a lead on some parts, shown in this picture --- but I am confused ....in this picture, I circled in red the part I am confused about...on some replacement part pictures on the web I have found, I don't see that "ramp" for lack of a better word in the plastic...mine has that as does yours, though mine appears to have a piece broken off...in some pics it looks more solid? 

(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/from%20somerbr%20circle%20around%20plastic%20and%20metal%20part%20ramp_zpsjoq7up0n.jpg) (http://s349.photobucket.com/user/shadango_bucket/media/cuda%20wipers/from%20somerbr%20circle%20around%20plastic%20and%20metal%20part%20ramp_zpsjoq7up0n.jpg.html)

In your picture, the yellow area

(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/jaybee%20wiper%20cam%20pic%20hilite_zpspwwjbqoa.jpg) (http://s349.photobucket.com/user/shadango_bucket/media/cuda%20wipers/jaybee%20wiper%20cam%20pic%20hilite_zpspwwjbqoa.jpg.html)

On MY part --- looks like I have the ramp but part of it is broken off? Just want to be sure the "ramp" is normal and not wear....
(http://i349.photobucket.com/albums/q391/shadango_bucket/cuda%20wipers/my%20part%20with%20hi%20lites_zpsyqsnsmnk.jpg) (http://s349.photobucket.com/user/shadango_bucket/media/cuda%20wipers/my%20part%20with%20hi%20lites_zpsyqsnsmnk.jpg.html)
Title: Re: Wipers reverse but dont park
Post by: JayBee on June 22, 2017 - 09:15:58 am
You're right, your "ramp" is chipped and I'd just use the one that looks like your original and mine. I don't know but maybe the differences in that plastic piece might have something to do with E vs B bodies. Maybe the kit includes both depending on application.  :dunno:

Hope you got the part with the "deep groove". I know I keep coming back to that but I really think that's your major problem, you know, kind of fix the obvious first. Also, not to be a "Captain Obvious", but, you'll have to re-position the wipers once the parts are replaced.
Title: Re: Wipers reverse but dont park
Post by: JayBee on June 22, 2017 - 10:14:45 am
Sorry, when you said something about "more solid" I thought you were referring to the plastic piece I labelled "A". I enlarged and cropped the picture from the parts picture you posted. As you can see from the "B" part there is a definite "ramp", it's not wear. In my previous post when I said the difference might be between E vs B I was thinking of these two plastic parts.
Title: Re: Wipers reverse but dont park
Post by: shadango on June 23, 2017 - 05:30:51 am
After looking around some more it appears they reproduce the plastic bushing.....   I'd give one of these guys a call....
 
Jim Slotts   412.295.1333     Email:  jsrestorations@rocketmail.com

Bruce Somer  951-675-9551

SO, Bruce ended up having the parts I needed!   :bigsmile:  wavy washer, the two plastic parts and the metal base part.  :woo:  Just sent him some money and cant wait to get the parts installed!
Title: Re: Wipers reverse but dont park
Post by: shadango on June 23, 2017 - 05:41:32 am
Looks like you need to buy that kit.... And this...

  [url]http://www.ebay.com/itm/ORIGINAL-2-SPEED-WIPER-CRANK-BOOT-W-CLIP-70-71-72-73-74-CUDA-CHALLENGER-/162519978792?hash=item25d6f21328:g:Y0YAAOSwMmBVzoaL&vxp=mtr[/url] ([url]http://www.ebay.com/itm/ORIGINAL-2-SPEED-WIPER-CRANK-BOOT-W-CLIP-70-71-72-73-74-CUDA-CHALLENGER-/162519978792?hash=item25d6f21328:g:Y0YAAOSwMmBVzoaL&vxp=mtr[/url])

...and just bought the boot.........thanks for finding this!
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on June 23, 2017 - 08:28:44 am
Excellent.... Sounds like your ready for rain.....
Title: Re: Wipers reverse but dont park
Post by: shadango on June 23, 2017 - 08:42:20 am
Hopefully I dont fund any damaged parts as I refurbish the rest of the linkage.
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on June 23, 2017 - 09:56:04 am
The wiper pivots which mount the wiper arms are pretty bullet proof, I imagine in places where it rains a lot sometimes they get a little loose but here in California they are usually in great shape.... A little lube & your good to go....
Title: Re: Wipers reverse but dont park
Post by: JayBee on June 23, 2017 - 12:25:38 pm
I'll be looking forward to the new video once it's all together.
Title: Re: Wipers reverse but dont park
Post by: shadango on June 23, 2017 - 02:49:26 pm
The wiper pivots which mount the wiper arms are pretty bullet proof, I imagine in places where it rains a lot sometimes they get a little loose but here in California they are usually in great shape.... A little lube & your good to go....

I thought I saw some runner washers or something.

Now that I have the parts on the way, I plan on cleaning/ wirebrushing the linkages and painting.....make em pretty.....

And I will definately post a video *IF* this fixes the issue!     been 10 years in the making....LOL

Truth is the Fish doesnt see MUCH rain so its not a front-burner type of issue.....but I guess 10 years is long enough to get it right....crossing my fingers. Hoping to have it all back together and working right for Carlisle.....
Title: Re: Wipers reverse but dont park
Post by: shadango on June 28, 2017 - 08:50:50 pm
Well, got the new (used) plastic parts, wavy washer,  and main metal pipiece plus the boot....

Put it  all together and had frustrating results.

Best I can say is mixed results.

Seems like sometimes it will park, kinda....and others nto at all....have to turn on the wipers a couple more times.....

I played with the clocking of the wiper arms several times and the video below is what the results are.

It's banging off the stainless steel trim...  and wiping onto it.  Can't imagine that is right.....but if I clock the  arms to stop wiping on the ss trim, they wouldn't park. 

I think maybe trying to get the ss trim to hug the glass better is the next step but no idea how to do that...afraid of messing up a major trim piece...

https://youtu.be/mB-KcdcpPSk
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on June 28, 2017 - 09:29:38 pm
It definitely needs to be clocked further up to not touch the cowl trim except when it parks.. When it parks is it still reversing? It didn't look like it does....
Title: Re: Wipers reverse but dont park
Post by: shadango on June 29, 2017 - 06:42:37 am
Yeah, in the video its still reversing...

Though every now and then when you turn off the switch it doesn't reverse.....turn the wipers on again and try again and usually they do, sometimes it takes a second try....I assume thats because of the moment chosen to turn them off?

If I reclock the wipers higher, then the wipers park higher as well.
 :pullinghair: :pullinghair: :pullinghair: :pullinghair: :pullinghair: :banghead: :banghead: :banghead: :banghead: :banghead:
Title: Re: Wipers reverse but dont park
Post by: JayBee on June 29, 2017 - 08:14:06 am
It definitely needs to be clocked further up to not touch the cowl trim except when it parks.
:iagree: The driver's side wiper should be closer to the A pillar on the up swing.
Title: Re: Wipers reverse but dont park
Post by: shadango on June 29, 2017 - 11:00:25 am
I agree...but if I reclock the arm, it parks waaaaaaay north of where it should.
Title: Re: Wipers reverse but dont park
Post by: Aracer on June 29, 2017 - 04:37:04 pm
Hold it there Sportshoes, another scenario,  the ground wire for parking the 2 speed wipers is on the dash switch panel screw to the dash. It has a u-nut that may not have a fresh ground.

Mine did not park until I fiddled with the nut to dash. Lack of use , So I removed the wiper wire plug,  so, it don't get stuck by a mistake turn on. My cuda's don't get run  in rain. Why risk it.
Title: Re: Wipers reverse but dont park
Post by: shadango on June 29, 2017 - 08:15:14 pm
I posted  a pic earlier in this thread of my setup....whole seperate ground wire run.
Title: Re: Wipers reverse but dont park
Post by: shadango on July 01, 2017 - 01:42:20 pm
So I talked to Bruce again last evening (he is a great guy willing to help!) 

He pointed out as others here have that the "up" position is not far enough....and he suggested I try a test...remove the wiper arms, mark the pivots relative to where the arms should park and then see what the sweep looks like.

So I did that.

The sweep is the same as with the arms installed...

When you switch the switch off, the motor reverses and "parks".

But the sweep while running INCLUDES the park position.

Now, with the new cam parts installed, I cant even manually park them if they park too high due to my positioning the arms higher so as to not go over the chrome trim for the normal sweep.  Before, with the broken cam parts I could at least do that.

Grrrrrrrrrrr.

So I can only assume that the new parts are SOMEHOW installed wrong or the motor itself is the issue?

Here is the video.

https://youtu.be/1LrQAfnDEpg (https://youtu.be/1LrQAfnDEpg)
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on July 01, 2017 - 01:59:10 pm
I was just searching the web for info & found this.... It's just the very last paragraph on two speed wipers... If someone knows where page 7 can be found....

FWIW I'm sure the problem is in the cam assembly...
Title: Re: Wipers reverse but dont park
Post by: 73440 on July 01, 2017 - 02:44:50 pm
https://m.youtube.com/watch?v=7JVrvjzQlg0

Here is the film from the 70-11 windshield wipers
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on July 01, 2017 - 03:02:10 pm
https://m.youtube.com/watch?v=7JVrvjzQlg0

Here is the film from the 70-11 windshield wipers

Excellent...  Like I said earlier you need to have another look at the cam assembly, something in there isn't doing it's job...
Title: Re: Wipers reverse but dont park
Post by: shadango on July 01, 2017 - 05:47:30 pm
Excellent...  Like I said earlier you need to have another look at the cam assembly, something in there isn't doing it's job...

Thanks guys.   I was out working on the car when the video link was posted so I havent had the chance to look at the video link yet.

But I believe it is either the spring inside that has lost some tension or the shaft on the crank itself has worn....

Here is a video I threw together...
https://youtu.be/ouZqjPOjw6I (https://youtu.be/ouZqjPOjw6I)
Title: Re: Wipers reverse but dont park
Post by: shadango on July 18, 2017 - 10:50:26 am
So, just to update and provide some closure, in case anyone else happens on this thread in the futurWebe and needs the info --

When I got home from Carlisle, a box was waiting for me.

It contained a new(ish?) wiper crank/pin and spring.

Swapped that in and viola....seems like the issue is done now.

Every now and then the drivers wiper hangs a little on the SS trim.....and not sure how to address that yet....but more often than not they park good now.  The driver's arm raps on the SS trim, so clearly the trim is the issue now.

Comparing the new spring on my old crank, I believe my old crank's pin is worn as well....so went with the new one.

https://youtu.be/u2fdgcnJiyc

Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on July 18, 2017 - 10:57:46 am
Sounds like the trim is what caused the cam to wear out... Fix the trim....
Title: Re: Wipers reverse but dont park
Post by: JayBee on July 18, 2017 - 01:21:55 pm
Awesome, good for you. After I contributed my  :2cents:  I was lost as to suggesting anything else. That's why I didn't/couldn't add any more to this thread. I was almost going to suggest another motor so I'm glad I kept my mouth shut.

What I'm really curious about is the part number the same on the old crank/pin and new crank/pin?  Also, it looks like the the bottom of the drivers side wipe is hitting the stainless, especially at high speed.  You're, no doubt, pretty adept at removing those by now, have you thought of moving it up one spline.

Once again congratulations, and thanks for all the valuable info and the update.
Title: Re: Wipers reverse but dont park
Post by: cv70chall on July 18, 2017 - 02:43:04 pm
I have the 2-speed motor and my wipers won't "return" or park at all.
I've replaced the motor and still no luck.

???
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on July 18, 2017 - 04:27:26 pm
I have the 2-speed motor and my wipers won't "return" or park at all.
I've replaced the motor and still no luck.

???

Are you sure you have the right two speed motor?  There are two types, one retracts for hidden wipers, the other doesn't & is for exposed wipers....  The way to tell them apart is by looking at the electrical connections... The pin lay out is the same but some of the connectors are brass & some are steel... The mix of brass vs steel is how you tell them apart....   The info is touched on in this video....  https://m.youtube.com/watch?v=7JVrvjzQlg0
Title: Re: Wipers reverse but dont park
Post by: solarguy on July 18, 2017 - 05:54:05 pm
 :thumbsup:  Good to see you get this fixed
Title: Re: Wipers reverse but dont park
Post by: shadango on July 18, 2017 - 10:57:25 pm
I have the 2-speed motor and my wipers won't "return" or park at all.
I've replaced the motor and still no luck.

???

Remove the screen on the drivers side cowl....and watch the action of the motor......does the motor "reverse" when you shut off the wipers?

If so, you have the correct motor and your problem will probably be in the cam assembly as mine was.

If you read thru the thread here there are lots of good ideas including making sure the switch is grounded well.

If you know the switch is grounding well, pull the linkage out and inspect the came assembly. Its not a complicated piece, but I found it has to be working perfectly to work at all correctly.

I also found that they work the best when the car is running (ie the battery is charging) ....as voltage drops, so does the performance of the system.

There is tons of great info from folks in this thread.....all of it came together and helped me see the bigger picture.....

Bruce was a HUGE help figuring this out as well! He is the guy who hooked me up with the parts I needed!   :woo:

I posted a couple videos above that should help.....

Now, who has info on what exactly to do as far as tweaking the SS trim to fit flush with the windshield??  If I could get rid of the interference there, I could say its 100% fixed!    Its 98% now....LOL
Title: Re: Wipers reverse but dont park
Post by: shadango on July 18, 2017 - 11:14:04 pm
Here is more info on how that cam assembly works based on what I noodled....

The MAIN part in the cam assembly is the SPRING.   It is responsible for grabbing at first to rotate the cam around to lengthen or shorten the arm so it can park /wipe as needed.

When the motor gets turned on, the cam assembly starts rotating with the crank...initially (from a park position) it travels a short distance with the spring riding on the shaft tightly which rotates the cam plastic pieces.  When it all reaches the end of the designed travel range, the linkage length has been changed to allow wiping, and the spring then opens a bit to allow the shaft to rotate in forward  mode freely.......this stays this way while they are on.

When you turn off the wipers, the motor immediately rotates in the opposite direction..... the crank shaft obviously reverses direction as well. It again travels a short distance with the spring riding on it tightly which rotates the cam plastic pieces again, changing the length of the wiper linkage, allowing the wipers to come into park position.

The spring on mine was worn and the shaft was as well.....that means that when the little inner block on the cam plastic parts would push against the spring, it would just rotate, which means the cam would not rotate which in turn means the eccentric cam didnt move which then means the linkage didnt change length to park.

With the new spring installed, it grabs the shaft of the crank lever tightly at first so the cam rotates.....then as the innards reach their end of range, the spring loosens up so the shaft can rotate freely.

Its a neat design if not the most mechanically long lasting...I can see how over time the spring and shaft will wear , leading to slippage and then a non-park situation.

As noted above, I had wrapped one layer of electrical tape around the shaft and reassembled and things started working better.....so I knew I was on the right path.

If someone could figure out a way to slide some sort of bushing over the shaft to effectively tighten the spring and shaft fit that might work.



Title: Re: Wipers reverse but dont park
Post by: 73440 on July 18, 2017 - 11:50:18 pm
Now, who has info on what exactly to do as far as tweaking the SS trim to fit flush with the windshield??  If I could get rid of the interference there, I could say its 100% fixed!    Its 98% now....LOL

Could it be excess sealant holding it above the windshield?
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on July 18, 2017 - 11:54:21 pm

Now, who has info on what exactly to do as far as tweaking the SS trim to fit flush with the windshield??  If I could get rid of the interference there, I could say its 100% fixed!    Its 98% now....LOL

I just watched the last video paying attention to the trim....... In the video it looks to me like your trim all around doesn't fit tight to the windshield.... I'm talking about the two upper pieces as well as the lower trim....  If that is in fact the case then I think your problem might be the wrong Butyl Glass Setting Tape, it comes in three thicknesses & if you use the wrong one the glass sits deeper in the opening & the trim doesn't fit properly...

On the same thought, standard Mopar butyl glass setting tape is 5/16" but if your using new aftermarket glass thats thinner than the original glass you use 3/8" tape to bring the glass up to stock height...
Title: Re: Wipers reverse but dont park
Post by: shadango on July 20, 2017 - 10:26:18 am
In the video it looks to me like your trim all around doesn't fit tight to the windshield.... I'm talking about the two upper pieces as well as the lower trim....

Yeah that could be.

The windshield was in the car when I got it......I guess I am stuck with it as is unless I get a brick thrown through it at a car show...LOL

I was wondering if the SS trim at the base could be tweaked enough to make it better.....
Title: Re: Wipers reverse but dont park
Post by: 1 Wild R/T on July 20, 2017 - 11:28:53 am
Windshields if installed with the butyl tape are easy to remove & reinstall....  Pop the trim & cut it out with piano wire..... 30 minutes.... clean out the old butyl & apply new all done in less than two hours & $30.....  If the windshield got glued in with urethane all bets are off.... Expect to be buying new glass....
Title: Re: Wipers reverse but dont park
Post by: shadango on July 21, 2017 - 09:57:15 am
Windshields if installed with the butyl tape are easy to remove & reinstall....  Pop the trim & cut it out with piano wire..... 30 minutes.... clean out the old butyl & apply new all done in less than two hours & $30.....  If the windshield got glued in with urethane all bets are off.... Expect to be buying new glass....

I guess one could pop the trim and see if there is tape versus the goo?

If I were to get around to having the shield popped for that, I would get a new one.....mine has some light scratches etc.....would also do a new dash pad while it was out....

But those are just pipe dreams.......LOL
Title: Re: Wipers reverse but dont park
Post by: GoodysGotaCuda on July 21, 2017 - 10:38:23 am
 I have brand new glass, correct thickness butyl and brand new AMD trim and it does not sit tight on the glass.

I may end up lightly bonding the trim to the glass if I find I need to.


Sent from my iPhone using Tapatalk
Title: Re: Wipers reverse but dont park
Post by: 71cuda#match on July 28, 2017 - 12:05:11 pm
I tested my motor as the manual says, and the motor reverses fine.  But when I operate the wipers from the switch, and turn the wipers off, they just stop wherever they are at the time.   I have to wait until they are at the bottom to turn them off.  Annoying!
Title: Re: Wipers reverse but dont park
Post by: shadango on July 29, 2017 - 01:23:04 pm
I tested my motor as the manual says, and the motor reverses fine.  But when I operate the wipers from the switch, and turn the wipers off, they just stop wherever they are at the time.   I have to wait until they are at the bottom to turn them off.  Annoying!

So do the wipers ever change direction or do the wipers ALWAYS immediately stop when you turn the switch off?

If its the first, could just be the cam assembly as was my case -- it would do that sometimes.

If the latter, and the motor checks out when bypassing the switch I would guess either the switch is bad or the switch isnt finding a good ground.....I am told the switch has to see a good ground to park.

I ran a seperate wire from the mounting lug on the metal switch mounting frame to the firewall.  That didnt cure my issue at the time --- my cam assembly ---and most importantly the spring in it --- was bad.
Title: Re: Wipers reverse but dont park
Post by: cv70chall on August 04, 2017 - 03:28:40 pm
That's exactly what mine do...stop where ever you turn off the switch.
What's involved in removing/ fixing the cam itself?
(I remember installing these during my resto, but it was 5 years ago and my memory sucks....Lol
Title: Re: Wipers reverse but dont park
Post by: shadango on August 16, 2017 - 05:22:41 am
That's exactly what mine do...stop where ever you turn off the switch.
What's involved in removing/ fixing the cam itself?
(I remember installing these during my resto, but it was 5 years ago and my memory sucks....Lol

SOrry for the delay....not receiving email updates and havent visited the forum lately due to work.

Its not hard really.

One bolt at the crank on the motor, 3 bolts on the drivers side wiper pivot (at the windshield)...

Then I reach in to the passenger side linkage and unclip the "drive" linkage from the pivot assembly...you can also remove the three bolts on the passenger side pivot assembly and remove the whole thing instead....thats what I did the first 30 times....lol...then realized I didnt have to do that.

Once the whole linkage is out of the car, the boot (if you have one) is removed, then a clip on the cam assembly comes off and it all comes apart easy.

I had pictures up but the photo bucket debacle screwed that up.....lots of info in this thread to help you though.

Hardest part was finding the parts.