1976 windshield washer pump rebuild kit

[Itali83]

What I actually did because the mechanical aspect of the original pump made me smile and how it literally pumps the fluid on the windshield instead of a solid spray. I used the newer electric pump as a transfer pump so a quick hit of the button feeds washer fluid to the original pump which then takes over and will pump the set number of pumps automatically.

Crazy I know but I wanted this truck to be a total time warp in as many ways as possible. It’s makes me chuckle and long for the days of strictly mechanical things once again every time I wash the windshield.

Ben

 

[Matt69olds]

These pumps are not a great example of GM engineering, and even with a repair kit it might not work right. Using a newer reservoir with a built-in pump is often the best fix.

I would agree. Rebuilding the original mechanical pump usually gets it going, but not for long. Like so many things today, the quality of the parts and manufacturing just isn’t the same as 30 years ago.

 

[44SAA]

Did a little digging in the wiper assembly today. Couple things : 1980 Chevy manual says unlike other pumps, this unit isn’t replaceable accept for couple parts. Secondly, the entire assembly is enclosed in a clam shell with 10 rivets, making popping it open very challenging. My gaskets are rock hard. Gonna gamble and spend $8 for a gasket kit with zero expectations. Also found it interesting that the 1980 manuAl dedicated so many pgs to servicing the wiper assembly

 

[AuroraGirl]

Did a little digging in the wiper assembly today. Couple things : 1980 Chevy manual says unlike other pumps, this unit isn’t replaceable accept for couple parts. Secondly, the entire assembly is enclosed in a clam shell with 10 rivets, making popping it open very challenging. My gaskets are rock hard. Gonna gamble and spend $8 for a gasket kit with zero expectations. Also found it interesting that the 1980 manuAl dedicated so many pgs to servicing the wiper assembly

I mean, are you committed to fixing that mechanical rotating pump? The reason I ask is it is truly so much easier to just install about any junkyard GM or even ford washer tanks with easy mounting points and a built in pump. THen trigger the pump with the same circuit wire that the oem does. The electric works much better, longer, and has less to fail. they are remarkably reliable, good strength too, and there is also the later square trucks which came with the tank with built in pump as well, so you could easily retrofit a new or used assembly without much effort.