The 1956-1962 Corvette Wiper Arms were cable-driven from the Corvette’s Wiper Motor. A drum behind the firewall rotated multiple cables to each transmission. Fortunately, these transmission cables do not require adjustment on a regular basis; however, when adjustment is needed, either from cable stretching or following a new installation, Chevrolet designed a system where cable tension can be increased by simply pressing on the outer end of the transmission shaft.
Corvette Wiper Transmission
To illustrate, each transmission has two spools – one for each drive cable. The inside face of each spool has cast teeth locking them together. When the transmission shaft is pressed down, the two spools separate and an internal spring allows the spools to rotate to their tightest position. Once pressure is removed from the transmission shaft, the spools are locked together again and the cables are tight against the wiper motor drum. When removing the transmission, the operation will require the help of an additional person. With one person pressing down on the wiper transmission shaft to “unlock” the spools, the second person (inside the Corvette) must pull against the cables, rotating the spools against the pressure of the spring. Once all the necessary slack is obtained, the wiper transmission shaft can be released and the spools will lock together. This slack will allow the cables to be removed from the wiper motor drum. The Corvette’s Wiper Transmission can then be removed.
Corvette Wiper Arms, Corvette Wiper Motor, Corvette Wiper Transmission, Restoration Tips
This week’s Corvette Question comes from Tammy who owns a 1979 Corvette:
How do I install the wiper motor on a 1979 Corvette?
Corvette Wiper Motor & Arms
Answer: When the windshield wiper motor on your Shark quits, it’s a fairly simple matter to replace it. It takes well under an hour and no special skills are required. Once you have an understanding of the procedure, mounting any C3 Corvette wiper motor will be easy and quick to do. Follow along as we show you how:
As with any work you are performing; don’t forget to disconnect the negative cable from the battery, just to be on the safe side.
Step 1
1. If you have an aftermarket 1973-1982 Corvette Windshield Wiper Compartment Cover installed in your car, the first thing you’ll have to do is remove it so you can gain access to the wiper compartment. If you don’t have one of these covers installed, proceed directly to step 2.
Continue Reading This Article…
Corvette Washer Jar, Corvette Washer Pump, Corvette Wiper Arms, Corvette Wiper Motor, Corvette Wiper Motor Install
Today’s Corvette technical question comes from Aris who owns a 1969 Corvette.
How do I remove my Corvette’s windshield wiper motor?
Answer: The wiper motor is held to the cowl by three studs coming from the windshield side. First, gain access by raising the wiper door assembly to its highest position, this can be done by removing the plug from the wiper door vacuum canister and pulling the wiper door up. Additional access can
1969-1972 Corvette Wiper Motor
be gained by removing the (8) screws holding the wiper door grill in place. Disconnect the wiper arms from the ball stud on the back of the wiper motor; two nuts with attaching washers hold the arms to the ball stud. There is also a single nut that holds the ball stud bracket to the back of the wiper motor, this may need to be removed as well. Try to reach these components without removing the wiper door, as removing wiper doors typically cause other problems including broken bolts which typically require professional repair. Once the arms are loose, simply loosen the three nuts on the front of the wiper motor and the motor can be pulled straight forward and off the cowl. When replacing the wiper motor with a new or rebuilt unit, order separately the wiper motor mount bushings as these are usually dry and cracked due to engine compartment heat.
Do you have a Corvette technical question that you need answered? Click here to submit your question.
Corvette Windshield Wiper, Corvette Wiper Arms, Corvette Wiper Door, Corvette Wiper Door Grill, Corvette Wiper Motor, Cowl, Replacing
Recent Comments