1968 Wiper Motor Help
Thread Starter
Drifting
Joined: Mar 2009
Posts: 1,461
Likes: 361
From: Monson MA
1968 Wiper Motor Help
I installed a new wiper motor in my 68. My problem is, when I turn off the switch it stops the blades in the up position as it would when I use the wiper service switch to change the blades. It's like it parks 180* off. It does not park in the down position. Any input would be helpful. Is there a chance I clocked the cam assembly 180* out. Not sure if it's possible 🤔.
Thanks in advance.
Thanks in advance.
Last edited by twinpack; Feb 26, 2022 at 05:53 PM.
Thread Starter
Drifting
Joined: Mar 2009
Posts: 1,461
Likes: 361
From: Monson MA
I should have stated. I am aware of Wilcox troubleshooting. I performed a full nut and bolt restoration over 9 years on this car. Through that time one is exposed to most common approaches. My bad. I do appreciate you input. Thank you.
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,209
Likes: 9,347
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Does it just shut off or is the park position on the windshield. If it just shuts off there is an issue with the motor. If the ipers slo and stop in the same spot every time then its a linkage issue. Can you post a pic or a video?
Thread Starter
Drifting
Joined: Mar 2009
Posts: 1,461
Likes: 361
From: Monson MA
yes when I shut off the wiper switch, the wipers stop on the windshield., the motor is brandnew and stops in the park position but wipers are up.. I'm going out today and try and clock the cam 180*. I just don't know if this is something you can do.
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,209
Likes: 9,347
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
What about the wiper arms them selves. Is there a cam slot on those or can you pull them off and move them down to the corrected park position and reinstall? Obviously there has to be something in the linkage that isnt right
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,209
Likes: 9,347
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
If it was spriing I would just drive my 68 over and we could compare linkage side by side
Thread Starter
Drifting
Joined: Mar 2009
Posts: 1,461
Likes: 361
From: Monson MA
Yes the wiper arms do have a keyed slot.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Safety Car
Joined: Oct 2007
Posts: 4,378
Likes: 1,740
From: Seattle Area Washington
Something to try...
To me it sounds like the wiper motor was NOT in it's home position when you connected the crank arm to the motor.
Take the nut off the crank arm, remove crank arm from motor.
Cycle the wiper motor on/off so you are sure motor has stopped in it's park or home position.
With wiper blades in there home position re-attach the crank arm to wiper motor.
To me it sounds like the wiper motor was NOT in it's home position when you connected the crank arm to the motor.
Take the nut off the crank arm, remove crank arm from motor.
Cycle the wiper motor on/off so you are sure motor has stopped in it's park or home position.
With wiper blades in there home position re-attach the crank arm to wiper motor.
Melting Slicks
Joined: Sep 2007
Posts: 2,149
Likes: 284
From: cary Il
either there is a problem with or wrong wiper motor, wired incorrectly, or problem with override switch
the wiper arms basically go on one way, 68 wiper motor and wiring is unique and complicated
the wiper arms basically go on one way, 68 wiper motor and wiring is unique and complicated
Burning Brakes
Joined: Dec 2005
Posts: 1,153
Likes: 341
BMOTOJO hit the nail on the head. The wiper motor can go in the lever two ways. Turn off the wiper, disconnect the motor, manually park the blades, re-attach.
For others, BEWARE.... 1968 wiper motor is wired different than 1969, and a lot of non '68 motors are being SOLD AS 1968's - ebay, Amazon, etc. As others state, SEE WILCOX.
For others, BEWARE.... 1968 wiper motor is wired different than 1969, and a lot of non '68 motors are being SOLD AS 1968's - ebay, Amazon, etc. As others state, SEE WILCOX.
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,209
Likes: 9,347
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Can you take a pic of your linkage and how it is attached
Thread Starter
Drifting
Joined: Mar 2009
Posts: 1,461
Likes: 361
From: Monson MA
I appreciate all the input. Thank you. I had the attachment arm or cam the bolts to the motor 180 out. My bad. Now I am having a problem adjusting the passenger side wiper. When it parks the wiper stays a bit high. I did follow adjustment procedures but it won't stop low enough. It stays a bit high. I can push it down to close the the wiper cover. I've been adjusting the linkage as well as the wiper arm itself. Gotta love these cars.
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,209
Likes: 9,347
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
I appreciate all the input. Thank you. I had the attachment arm or cam the bolts to the motor 180 out. My bad. Now I am having a problem adjusting the passenger side wiper. When it parks the wiper stays a bit high. I did follow adjustment procedures but it won't stop low enough. It stays a bit high. I can push it down to close the the wiper cover. I've been adjusting the linkage as well as the wiper arm itself. Gotta love these cars.
Thread Starter
Drifting
Joined: Mar 2009
Posts: 1,461
Likes: 361
From: Monson MA
I did read to wet the window but I did not. I did wash it. Probably doesn't count. I did have the thought that a wet windshield would aid in rhe wiper closing in the park position. I have been playing with the adjustment screw on the arm. I will wet the windshield and cycle. Yhanks.
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,209
Likes: 9,347
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
I do believe the 68 wiper arms are one year only. I am not sure but i did have an arm issue when i first got my car and had to buy the correct wiper arm. I only remember it because I thought it was ridiculous
Thread Starter
Drifting
Joined: Mar 2009
Posts: 1,461
Likes: 361
From: Monson MA
Just found a original pair on ebay for 60.00. They are a little different than the ones on my car. Thanks for the head-up.
Dr. Detroit
Joined: Mar 2012
Posts: 10,097
Likes: 4,027
From: New Braunfels Texas
I did read to wet the window but I did not. I did wash it. Probably doesn't count. I did have the thought that a wet windshield would aid in rhe wiper closing in the park position. I have been playing with the adjustment screw on the arm. I will wet the windshield and cycle. Yhanks.
Jebby
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,209
Likes: 9,347
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
the blades only effected them from getting under the door on my car, not here they parked. Hopefully it isnt that the wiper mechanism is worn