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Removal of the old vacuum assembly
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- Remove wiper arm by lifting arm against spring tension and with a screwdriver, slide the cap off the serated shaft.
- Remove pivot shaft chrome nuts, washers, spacers and chrome fairing.
- Open hood and remove the seven cowl vent intake cover screws [under cowl seal].
- Place a rag on the cover below the corners of the hood to protect the paint.
- Slide the right side of the cowl cover forward to disengage the spring clip.
- Lift the cover off the pivot shaft bodies and remove it from the car.
- Slide the link to motor retainer clip off the motor arm [accessible through the cowl top opening].
- Disconnect the control cable and vacuum hose from the motor.
- Remove the four motor moutning plate to plenum screws and extract the motor assembly.
- Close the hood and remove the two cap screws holding each pivot shaft body to the cowl top.
- Remove the both pivot shaft bodys and link assemblies as a single unit, through the cowl top opening.
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Remove the wiper control
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- To remove the knob loosen the set screw with an Allen wrench and pull the knob off the shaft.
- Remove the French nut to disengage the switch from the instrument panel.
- Carefully extract the control and cable assembly from the car.
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Installation of the electric motor
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- Installation is basically the reverse of removal - with certain items to note...
- The cowl cover also retains the cowl seal, ensure the seal is aligned with the holes in the cover before fastening with the seven screws.
- To save the dual action fuel pump from damage, install a length of hose to attach the intake side of the vacuum portion to the output side of the pump.
This is important, as the diaphram will wear prematurely if it is left unprotected.
- Cap off the vacuum port for the wipers on the engine intake manifold.
- Before attaching the wiper arms, install the control switch and give the setup a functional test.
- Operate the motor and ensure there is no binding, shut off the wipers and ensure it stops at the park position.
- Wet the windshield with water and a little liquid dish detergent.
- Install the arms on the pivot shafts so the blades are just above the windshield lower rubber.
- Operate the wiper motor a couple of times and ensure the blades park correctly at the bottom of the glass, also check that the left blade does not go off the top corner of the glass.
- Adjust the position of the blades on the pivot shafts as neccessary.
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| Installation of the control switch
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- For earlier dashes [1963-64 Lefthand drive 1963-66 Righthand drive] the switch will have to be modified to fit the original location or relocated.
- Feed the harness through the firewall to the switch and attach the wires to the back of the wiper switch.
- F1 is red wire F2 is yellow wire A is black wire P is blue wire
- Attach the brown power wire to the ACC terminal of the ignition switch
- Some of the later switches have a W terminal, which is a power feed wire for electric washers.
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