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Windshield Wiper Motor?

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Old Feb 15, 2021 | 01:51 PM
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Default Windshield Wiper Motor?

As part of the restomod of my 73 bb, I’m replacing the windshield wiper motor.
Since I am eliminating as many vacuum and other hoses as possible, I don’t plan to run any windshield washer lines to the wipers and I’m removing the reservoir.
Living where I do, I never use the ones on my daily drivers so why put them on my custom Corvette.
I’m looking for a new wiper motor without the provisions for the washer lines.
Has anyone eliminated their washer lines and replaced their wiper motor with a non washer type?
If so, what motor did you replace the oem type with?
Thanks!

Last edited by OldCarBum; Feb 15, 2021 at 01:53 PM.
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Old Feb 15, 2021 | 05:01 PM
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Hello Old CarBum,

1975 and newer C3 wiper motors do not have an attached washer pump. The pump was relocated to the bottom of the reservoir for Model Year (MY) 1975.

See if this might work for you. Pic is from my 1975

Wiper motor from my 1975


Hope this points you in the right direction
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Old Feb 15, 2021 | 05:05 PM
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Originally Posted by '73and'75
Hello Old CarBum,

1975 and newer C3 wiper motors do not have an attached washer pump. The pump was relocated to the bottom of the reservoir for Model Year (MY) 1975.

See if this might work for you. Pic is from my 1975

Wiper motor from my 1975


Hope this points you in the right direction
That's what I did on my '71 and I put an electric pump in my reservoir. Easy to do and works great.

Edit - This might help - Thanks Willcox!!!!!!!

Last edited by theandies; Feb 15, 2021 at 05:17 PM.
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Old Feb 15, 2021 | 05:25 PM
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Yeah but I cheated


Stock motor, removed the washer pump, made a cover plate and went electric on the tank
M
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Old Feb 15, 2021 | 08:12 PM
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Greg, I just pulled the washer pump off of my 69 motor and bought the 75 and up washer pump cover, the one 73and75 posted above. Perfect! I eliminated all vacuum as well.

Last edited by 69ttop502; Feb 15, 2021 at 08:15 PM.
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Old Feb 16, 2021 | 07:22 AM
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If that’s an original pump would you be interested in selling it?
I would be interested,thanks
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Old Feb 16, 2021 | 07:44 AM
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I sourced a late 80's BOP (Buick Olds Pontiac) wiper motor for $65 NOS. Clocked correctly for a C3. Smaller - more efficient and a better design than the old bulky motor.

Cardone part number 40-184- the original part number is 22072788 then superseded with 88961292

If you wanna find it in the junkyard you can get one with the board and motor for easily under $50- eBay listings say the motor comes from Buick Century- Olds Cutlass-Pontiac 6000-Chevy Celebrity

Instead of ground switching like the OEM - modding and running +12 through the OEM switch is pretty straight forward.

If no washer is needed- the wiring is further simplified

These motors have the park feature- and 2 out of the three holes line up as far a mounting- just requiring one extra hole.

Working-


Wiring-







Mounting-




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Old Feb 16, 2021 | 08:34 AM
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Originally Posted by Richard454
I sourced a late 80's BOP (Buick Olds Pontiac) wiper motor for $65 NOS. Clocked correctly for a C3. Smaller - more efficient and a better design than the old bulky motor.

Cardone part number 40-184- the original part number is 22072788 then superseded with 88961292

If you wanna find it in the junkyard you can get one with the board and motor for easily under $50- eBay listings say the motor comes from Buick Century- Olds Cutlass-Pontiac 6000-Chevy Celebrity

Instead of ground switching like the OEM - modding and running +12 through the OEM switch is pretty straight forward.

If no washer is needed- the wiring is further simplified

These motors have the park feature- and 2 out of the three holes line up as far a mounting- just requiring one extra hole.

Working-

https://youtu.be/jcv6laxIMTI

Wiring-







Mounting-


No wiper door I presume.
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Old Feb 16, 2021 | 12:10 PM
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Originally Posted by theandies
No wiper door I presume.
yep and nope 73 and 71 Will work w/ wiper door- using original vacuum or electrically as I have converted mine.


The wiper door is electromechanically switched to open-

When you turn on the wipers - the solenoid behind the dash on the tach - switches the vacuum for the wiper door to open.

The wiper motor doesn't see it's power till the door is fully opened by the switch on the firewall. See attached diagram.

And conversely not till the wiper's arm is parked- does the door go down via the mechanical vacuum switch.




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Old Feb 16, 2021 | 01:23 PM
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Originally Posted by JBrooke825
If that’s an original pump would you be interested in selling it?
I would be interested,thanks
It doesn’t look to be the original motor or pump.
Sorry!
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Old Feb 16, 2021 | 01:25 PM
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Thanks guys!
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Old Feb 16, 2021 | 01:26 PM
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Originally Posted by Mooser
Yeah but I cheated


Stock motor, removed the washer pump, made a cover plate and went electric on the tank
M
Very nice cover!
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Old Feb 16, 2021 | 02:10 PM
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Thanks
Lots (some) of people just use the covers from the later motors, they are almost the same but the wires plug into a different spot on the other motors. I show the difference here on this thread
https://www.corvetteforum.com/forums...post1597666362

Best if you swap the whole motor since you don't have to deal with the wiper door
M
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Old Feb 17, 2021 | 01:33 AM
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Thanks for the feedback from everyone.
I just ordered a 75-82 wiper motor and motor cover.
Just what I was looking for!
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Old Aug 2, 2024 | 08:26 PM
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Originally Posted by theandies
No wiper door I presume.
Back from the dead. What year is your car? Just bought the cardone wiper motor and the bolt holes line up on the 2 inside but not the passengers outside. Not a big deal. I can drill and use a nutsert on the outside passenger side, but the real question is, it appears the wiper motor rotating stud is much further recessed inwards (towards the engine compartment) then the original. Did you have to do any modifications there? Also seems like the motor itself hits the firewall before the lowest bolt can make the motor flush to the firewall. Also so everyone else knows, cardone does not ship the cover plate with the motors so it's an open gear box. The stock cover I have didn't fit but luckily a local guy has one that might work.

Last edited by LINY Kevin; Aug 2, 2024 at 08:34 PM.
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