Genuine Chevrolet El Camino Washer Pump

Chevrolet El Camino Washer Pump Parts Questions & Experts Answers

• Pump Assembly, Windshield Washer
  22071780
  Q: How can the washer pump be removed and reassembled for the 1969 to 1974 rectangular and round motor types on Chevrolet El Camino?

  A: Thus for the 1969 to 1974 rectangular motor sort the washer can be disconnected with the help of washer hoses and electrical wiring and the washer pump can be replaced because it is bought off of the Wiper Motor by the removal of the latter's screws. The, four lobe washer pump drive cam which is a press fit has to be pulled off and the felt washer on the wiper shaft. Following that, the ratchet dog retaining screw can be removed and therefore the solenoid assembly and ratchet dog can be lifted off the pump frame with, in the case of the type of arrangement described in this paper, the separation from the mounting plate if needed. For the removal of the ratchet wheel, the spring has to be out of the shaft groove and the wheel can then be slipped off. The pump and pump actuator plate can be released from the frame by pulling the pump housing forward to the valve end in order for the grooves to clear the frame. Resuction is the exact opposite of sution, and reassembly is the process in the reverse of that which was carried out during the dismantling process. Start with the 1969 round motor type by disconnecting the washer hoses and wires from the pump relay After that you have to eliminate the plastic pump cover and the frame screws before you can pull out the pump and frame. The ratchet dog is easily separated from the mounting plate by pulling out the screw and the pawl spring must be released from the pawl before the pawl is slid off the cam follower pin. The ratchet spring can be lifted out from the shaft slot and the ratchet wheel can be slid of while keeping the relay armature against the relay coil. The retainer can be bent open so that the cam can be pulled off the shaft; the relay armature and spring can also be removed now. The four tabs for the coil mounting bracket have to be chiseled in order to remove the relay coil as well as terminal board. To remove the plastic pump housing, pull it towards the valve end until the grooves are out of the base and released from the cam follower pin and the piston and the plastic housing are serviced jointly. The valve can be removed from the pump housing after pulling out four screws and thus the orientation of the valve to the housing was indicated before disassembly. The reverse of dismantling is assembly, and when assembling, the wiper motor should be in the 'Park' position before joining the pump and the wiper motor.