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01-12-2010, 11:19 PM | #1 |
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Wiper wont park in the correct spot
The wipers on my 72 wont park all the way down when I turn them off, they travel all the way down while operating but park about 6" up from where they should be. I have to turn them on and off quickly to get them down.
Any ideas what is going on? Thanks! |
01-13-2010, 01:32 AM | #2 |
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Re: Wiper wont park in the correct spot
I'll take a guess and say gears/linkage is worn.
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01-13-2010, 02:03 AM | #3 |
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Re: Wiper wont park in the correct spot
Thats what I thought but the wiper transmission is in great condition and it even has a newer motor, I wonder how it knows where to park? Does the motor have a cam on it that opens a switch? are they adjustable? I dont want to tear into before I know what I am doing.
Thanks! |
01-13-2010, 03:22 AM | #4 |
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Re: Wiper wont park in the correct spot
TTT...for those whi can be of better help than I.
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A husband can be right...or...A husband can be happy. 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
01-13-2010, 07:49 AM | #5 |
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Re: Wiper wont park in the correct spot
is this with a wet or dry windshield?
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01-13-2010, 08:13 AM | #6 |
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Re: Wiper wont park in the correct spot
Does it always happen or only when you turn them off when they are almost parked?If they all the way to the right when you turn them off,do they park ok?Do they seem to travel too far to the right?
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01-13-2010, 08:24 AM | #7 |
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Re: Wiper wont park in the correct spot
Do they always park in the same spot, but just not all the way down? Another thing to check into would be the wiper motor. There should be a little switch inside the motor that tells it where to shut off at after you shut the switch off. There would be a little cam lobe on the motor shaft that would actuate this switch. Not sure if it is adjustable though.
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01-13-2010, 09:59 AM | #8 |
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Re: Wiper wont park in the correct spot
They always park in the same spot when I turn them off, no matter where they are on the windshield when I turn off the switch. It happens wet or dry. When I turn off the switch they travel through the spot where they should park and move up about six inches past, six inches up from where they should rest. They travel perfectly across the windshield, meaning they dont go to far in either direction so removing the arms and moving them down wont change where they park.
It's more annoying than anything. The motor looks newer, like it had been replaced in the last few years. It's feels like it is mounted solidly, I took the cowl off and checked all the linkage and everything was in great condition. Thanks again! |
01-13-2010, 10:21 AM | #9 |
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Re: Wiper wont park in the correct spot
Mine did this last year and i think it was the switch that fixed it. It was either that or the motor. I would start with the switch as it is easyer than the motor.
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01-13-2010, 01:19 PM | #10 |
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Re: Wiper wont park in the correct spot
mine do the same thing, nomatter when you turn it off and wet or dry
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01-13-2010, 02:26 PM | #11 |
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Re: Wiper wont park in the correct spot
Well,I don`t know all the inner workings of the motor,but it`s in the motor.The motor is good,but whatever makes it park is bad.That`s how all vehicles were at one time.You`ll have to remove the motor.It could be a matter of cleaning or lube.Probably need a new unit.
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01-13-2010, 11:04 PM | #12 |
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Re: Wiper wont park in the correct spot
Is the wiper linkage connection on the motor shaft orientated in the right spot. I can't remember if it can only be installed one way or not. If it is in the right spot then I would put a new motor in.
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01-13-2010, 11:16 PM | #13 |
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Re: Wiper wont park in the correct spot
I'm pretty sure the linkage can only go on there one way. I've messed with mine a few times and they do the same thing. If you swap a part and it fixes it, let us know.
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01-14-2010, 01:13 AM | #14 |
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Re: Wiper wont park in the correct spot
I will check it out some more tomorrow, I went on to another project today, straightening my tailgate, it was bent 2 3/4" out on the bottom, its perfect now.
Thanks for all the suggestions! I will check it out tomorrow and report back when I figure it out! Thanks! Aaron |
01-14-2010, 07:43 AM | #15 |
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Re: Wiper wont park in the correct spot
the linkage arm can only go on one of two ways (like a double D shaft).
when you turn the switch, the dash switch provides a ground to either one or both windings (low or high). when you turn it off the sliding park switch on the pinion gear provides the ground path until it opens. the pinion gear is attached to the output shaft (pressed on IIRC) and is driven by the worm gear (part of the motor shaft). I think your pinion gear has moved on the output shaft since the wipers travel in the correct arc and distance they just park in the wrong spot. this theory is supported by you saying they park late. take your motor apart and you will see just what I mean. |
04-18-2011, 11:10 PM | #16 |
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Re: Wiper wont park in the correct spot
Bringing up an old thread in hopes that a solution was discovered or someone else has more info. My problem is similar, but I just replaced the motor with a new one from O'Reilly. It parks itself about 6 inches too high. When I turn the wipers back on, it completes the down stroke first.
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04-19-2011, 07:57 AM | #17 |
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Re: Wiper wont park in the correct spot
bump; mine do the same thing, pretty sure it's all factory original, wiper work great just wont park at the bottom. just got used to getting out and pushing them down!
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04-19-2011, 11:16 AM | #18 |
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Re: Wiper wont park in the correct spot
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There might be some help in this thread... http://67-72chevytrucks.com/vboard/s...d.php?t=413551 The park switch is inside the wiper gear box. The paragraph that relates to this problem: If the motor stops immediately when switched off (doesn't return to park position), first check the motor's ground strap. Since the motor is mounted on rubber cushions, it's grounded via a copper strap attached under one of the mounting screws. This is the ground for the park switch so the parking feature won't operate if the ground strap is missing, dirty, or corroded. If the ground strap checks out okay but the motor still doesn't go into park then the problem is most likely a worn out or dirty park switch. The park switch is located inside the motor's gearbox so some disassembly is required to check/clean the switch. I recommend consulting a good repair manual for the motor disassembly procedure. LockDoc
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04-19-2011, 03:51 PM | #19 | |
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Re: Wiper wont park in the correct spot
Quote:
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Eric 1967 C10 SWB 383 Stroker/TH400 Brother's One Piece Power Windows Shaved Doors, Markers, and Bumpers 4/6 Early Classic Drop Rear Fuel Tank (49-52 Chevy Car Tank) Surf Blue Paint Bella Vista, AR (Arkansas for those that get the 'A' states mixed up) My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=330869 Last edited by es67chevy; 04-19-2011 at 03:52 PM. |
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04-19-2011, 05:14 PM | #20 |
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Re: Wiper wont park in the correct spot
Seems like I saw something in the assembly manual on this....specifically where you should align that bracket.....
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04-19-2011, 07:21 PM | #21 |
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Re: Wiper wont park in the correct spot
My 07 ram does the same exact thing. I've been through 3 wiper motors in the last year with no permanent fix. I hope you figure something out because I'm out of answers and patience. Obviously different setups but still...wipers are wipers
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04-19-2011, 07:36 PM | #22 | |
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Re: Wiper wont park in the correct spot
Quote:
LockDoc
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04-19-2011, 10:52 PM | #23 |
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Re: Wiper wont park in the correct spot
Interesting!! I wonder what you do to "reset" it? I've tried manually putting it in the position it needs to be in, but as soon as i start the wiper motor again, it goes back to that same position. Maybe I need to unplug it too?
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04-20-2011, 09:12 AM | #24 |
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Re: Wiper wont park in the correct spot
Leon to the rescue!!!....yes sir that's the one I used to set the "park" of my wipers
That assembly manual on CD looks to be very helpful Leon!!!
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Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present Last edited by gcburdic; 04-20-2011 at 09:13 AM. |
04-20-2011, 10:38 AM | #25 |
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Re: Wiper wont park in the correct spot
How exactly did you set the park position? It doesn't seem to matter if I manually crank the motor around to the starting position. It just repositions itself the next time I run it. Do you have to open up the wiper motor case or something like that?
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Eric 1967 C10 SWB 383 Stroker/TH400 Brother's One Piece Power Windows Shaved Doors, Markers, and Bumpers 4/6 Early Classic Drop Rear Fuel Tank (49-52 Chevy Car Tank) Surf Blue Paint Bella Vista, AR (Arkansas for those that get the 'A' states mixed up) My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=330869 |
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