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Winshield Wiper motor issuse
#1
Ok guys trying to get the wipers going on my uncles car to take to Ky this weekend for the show. Problem is the wipers will not work. They worked for a time then quit. So figured the motor was bad, so we swapped it out last night. Tested it with the rod to the wipers unhooked. It seemed to work as advertised, hooked up the wipers and nothing. Good voltage, connections, and even swapped the switch. Unhooked the wipers and it would run as advertised againHuhHuhHuh So it was getting late so headed home to tackle again later today. Any similar cases?
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#2
The pivot shafts have to be in the parked position. My factory shop manual gives the following info:

Arm and Blade Assembly: Remove the arm and blade assemblies from the pivot shafts. turn on the wiper switch, allow the motor to move the pivot shafts three or four cycles, and then turn off the wiper switch. This will place the pivot shafts in the park position. Install the arm an blade assemblies on the pivot shafts to dimension X as shown in Fig 8.....

I will try to scan the page with the dimension X info and post up.



Mike AKA Ole Pony & Rare Pony

Our current Mustang garage/driveway
1973 Mustang Convert - Bought in 1974 - Still have it!
2004 Mach 1 Oxford White Auto, Bought Sept 06


[Image: 20180127_082009.jpg]

upload a photo on internet




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#3
Sounds like one of the wiper transmissions has froze up.

[Image: 2rr7aiv.png]

Just cruising along minding our own business when BAM!!! The LAWS show up.
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#4
Motor was parked and you can move the wiper assembly with the rod that connects to the motor by hand very easy.
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#5
My scanner is jambing up but here are some Macro Photos, hopefully you can read them if you expand the picture.

[Image: DSCF1824.jpg]

[Image: DSCF1825.jpg]

[Image: DSCF1826.jpg]

[Image: DSCF1827-1.jpg]



Mike AKA Ole Pony & Rare Pony

Our current Mustang garage/driveway
1973 Mustang Convert - Bought in 1974 - Still have it!
2004 Mach 1 Oxford White Auto, Bought Sept 06


[Image: 20180127_082009.jpg]

upload a photo on internet




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#6
I've had the park switch in the gear box go bad but, given the symptoms and the the things you've tried (2 motors/switches) it sounds like the linkage is binding. Has the linkage been disassembled? Chuck
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#7
c9zx;34041 Wrote:I've had the park switch in the gear box go bad but, given the symptoms and the the things you've tried (2 motors/switches) it sounds like the linkage is binding. Has the linkage been disassembled? Chuck

Seems if it was binding you would feel it when you moved it by hand. Gonna head over after work and try again. Thanks for all the inputs so far.
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#8
Ok after a couple of hours of looking for something wrong reinstalled the motor to fill the hole and decided time to regroup and start from the switch back, It is a painless harness so will have to find the diagram used to wire it, but checked weather for Ky and 0 chance of rain next 3 day so hopefully will be ok.
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#9
Take some rainX with you! It'll be OK.

Jeff T.

Low buck, touring style, '73 Convertible "rolling restoration", 351c, 2v heads with a shave and a haircut, Performer intake, Holley 650(ish), roller rockers, screw in studs, guideplates, stainless valves, Duraspark / Motorsports MSD, T-5 conversion. 1-1/8" front, 3/4" rear swaybars KYB shocks and some home brewed subframe connectors. Future plans; JGC steering box, Cobra brakes and... paint, interior, etc.

When I die I want to die like grandpa, peacefully in my sleep... not screaming, like his passenger.

[Image: 1_12_09_14_10_15_11.png]
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#10
Ahhh, You forgot to mention in the 1st post that the harness had been swapped.
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