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RustyPile · 04-09-2023, 01:34 PM

I guess one could call it a solenoid. On the back side of the shaft that drives the arm for the wiper linkage is a 4 lobe "cam". There is a cam follower attached to the linkage for the piston of the washer pump. In the "resting position", this linkage sits off to one side a bit. When the "solenoid" is activated, this linkage is pulled into alignment and the pumps starts pumping.

I don't like this arrangement because the wiper motor is mounted inside the cab, and the pump is mounted to the motor. This means that water is brought into the cab. If a leak develops, water is dripping inside the cab.. I installed a reservoir with a built-in pump in the engine compartment. I disconnected the factory plug on the old pump and fabricated a harness and plugged this into the new pump. Now, the pump and associated hoses are all in the engine compartment.

04-09-2023, 01:34 PM	#2
RustyPile Registered User Join Date: Dec 2017 Location: Elkhart, Texas Posts: 1,573	Re: Windshield washer pump I guess one could call it a solenoid. On the back side of the shaft that drives the arm for the wiper linkage is a 4 lobe "cam". There is a cam follower attached to the linkage for the piston of the washer pump. In the "resting position", this linkage sits off to one side a bit. When the "solenoid" is activated, this linkage is pulled into alignment and the pumps starts pumping. I don't like this arrangement because the wiper motor is mounted inside the cab, and the pump is mounted to the motor. This means that water is brought into the cab. If a leak develops, water is dripping inside the cab.. I installed a reservoir with a built-in pump in the engine compartment. I disconnected the factory plug on the old pump and fabricated a harness and plugged this into the new pump. Now, the pump and associated hoses are all in the engine compartment.