condor7

I have a 68 Vetterod. That being said it is not a numbers matching Vette. I have an L88 long hood so not need for wiper door and all the mess that comes with it. I still have the origonial wiper motor and it does work. The problem is it seems to only have one speed no mater what position the switch is in. Also when switched off the wipers will quit at whatever position on the windshield thay are switched off. Do not go to the down position and then quit. So what do I need to look at? Is this a switch issue? Is this a wiper motor issue? I am a little confused with the various year wiper motors, how are they different? I see that 68 to 72 are the same but vendors want a lot more $ for a 68 motor. Some say the 73 wiper motor is unique and that 74 through 82 are the same. I am a little confused. Looking to fix my problem with either a switch or a wiper motor. Any suggestions on what is my next step?

markdtn

68 is by itself 69-72 are the same and have the wire for park. If you eliminate the wiper door, you can use a later one that doesn't have the washer to get a cleaner look. Just be sure to get a 2 speed one, not a delay one. That's what I have in my car, but I added the park wire.

condor7

Thanks for the tip. I don't have the wiper door anymore so I guess a 75 to 82 will work fine?? I understand about the two speed motor, will have to look at some wiring diagrams to see what to do about the park wire. That very well may be my whole problem.

Young69Owner

Talk to me about the delay one! I've wanted to do this. My whole wiper setup and door work fine (but not my washer). Anyways, what are my options for getting the delay?!

markdtn

I think you have to have the switch for it, but the switch is different than the early one. I guess you could hide it somewhere.

Garys 68

I've got a 68 with wiper door. I switched to a 77. Look at the wiring diagrams. The 77 was a very simple rewire.

...Roger...

You can most likely get your 68 to work,if thats what you want here is a link to some help.
http://willcoxcorvette.com/instructi...0_rev_2_03.pdf
If you want to change motors to a later year then Garys idea of a 77 and up is good if you want to add an electric washer pump.
You should be able to control the later model motor and washer pump with your 68 dash switch with some wiring changes.
The dash switch just grounds,no power going to the dash switch.

0Willcox Corvette

Condor-

I think first I would bench test the old motor.. I have a video on youtube for that.

Then if the motor works, find out why on the car from the PDF page that Roger sent you. Changing the motor is an option.. but why not use what you have if it's working..... Besides if it's a car problem and not the motor you will have to chase wires to fix it with any motor you use or run new wires.

1968


1969-1972



Willcox

Young69Owner

Okay, so my switch has off, slow, and fast. Pushing it will squirt fluid after I pull the pump out and see where it is binding. What do I do, install a variable capacitor inline with the slow wire? I'm all ears. Many people on the forum would love to do this. I'm putting in wireless locks tomorrow and this could be my next project!

markdtn

I think you would have to leave the original switch there for dcecoration and add the late, variable switch in a hidden location. It is in the lower dash on the later cars, no good place for it on a '77 back lower dash.

Young69Owner

Will the '77 switch plug right in to the wires? Would the washer and park wire be different? Any idea how this works - would it be a variable capacitor?

markdtn

No, there are more wires, you would have to make a harness.

Young69Owner

Can you walk me through what you did? It all works perfectly?

0Willcox Corvette

Young-

Roger and I posted links to the schematics on the wiper motors and the video will show you how to hook them up.. I'm a bit lost here...

You have the wires, the relay and the switches you need in the car already. If you are doing away with the wiper access door, bypassing this door is easy.

Even if you wanted to wire the car just like the 1969-1972 or the 1973-1977 style motor.. you have the wires you need.

You'll find the 1974-1977 info at this link... http://willcoxcorvette.com/repairand...lp.php?hID=285

Willcox

Young69Owner

My wiper door works and it wasn't wasy to fix, so I'd like to keep it in service. I'll take a look at the link. Thanks.

markdtn

I do not have a variable speed wiper. I do have the newer style wiper motor with a functioning wiper door. As far as what I did, I don't exactly remember. I took the '69 shop manual and compared the regular schematic for a passenger car motor and the Corvette schematic and made it work. Seems to me you clip a wire and make it external so it can't stop until it parks, but I may be off base. It was not too hard to do.

...Roger...

I haven't tried using a later year motor but the 78-82 with the delayed wipers have the extra red lead just like the motors used for the cars with wiper doors.

Young69Owner

I looked up the switch for the '77 and it was $136 from Zip. I'll check out the later one too, but I feel like this shouldn't be that expensive. The wireless door locks were cheaper than that...

...Roger...

A factory switch alone will not make the wipers intermittent thre is also a controller that goes with the switch. If you want intermittent wipers I would suggest an add-on aftermarket box for around $50.

Young69Owner

Cool! Who sells the box?