Project 6 - Wiper Motor Replacement
Applicable Years: C3
Skill Level: 1 Wrench
Tools required: Sockets, ratchet, wrenches, screwdriver
Time required: 1 hour
Parts source: Corvette Central
Replacing a dead windshield-wiper motor on a Shark is a fairly simple matter. It should take you well under an hour and no special skills are required. Here's how to do it.
Unsnap the wiring harness...
Unsnap the wiring harness that supplies power to the wiper motor. The wiper motor is secured to the firewall with three nuts on studs. Use a 3/8-inch socket to remove these nuts, being careful not to let them drop down into the engine compartment.
The nut and washer retaining...
The nut and washer retaining the bellcrank arm in the wiper compartment is removed next. Gently moving the bellcrank arm back and forth will free it from the wiper-motor shaft.
The new wiper motor didn't...
The new wiper motor didn't come with a gearbox cover, mounting grommets, or the nut for retaining the bellcrank arm, so these components were swapped out from the old unit to the new one.
Slip the supplied new wiper-motor...
Slip the supplied new wiper-motor seal over the shaft of the motor and reinstall it on the firewall, passing the shaft through the hole until the seal is firmly pressed to the both the firewall and the motor. Secure it with the three retaining nuts and tighten them.
The bellcrank arm is keyed...
The bellcrank arm is keyed so it will only go on the shaft in the correct orientation. Wiggling it back and forth helps seat it on the shaft.
The retaining nut and washer...
The retaining nut and washer are installed on the shaft next and tightened. I used a chrome acorn nut to dress up the bellcrank a bit. Snap the wiring harness on the motor, and you're done. Oh, yeah--clean out any leaves or other debris in the area while you're at it.