The stock windshield washer pump on
the 66 Chevy II worked, but usually not well or not for long. The
replacements aren't cheap either. So I tossed the
original mechanical pump that was attached to the wiper motor and put a
universal one in that was in-line. The problem is it worked
for a few months and then the gears gave up. It kept
running dry, even when I had it below the level of the windshield
The fix I came up with was to put the pump in the plastic style windshield washer tank. Most of the newer pumps are housed in the tank and have a large inlet opening to avoid priming and flow problems. No problem pumping the fluid out of the tank or getting enough fluid with this design.
I searched for a pump and found the ANCO 64-02 looked good. It comes with it's own grommet for the tank.
First, you need to extend the pump wires to reach the bottom of the windshield washer tank. Put blade connectors on the wires.
Then use a "T" to connect the nozzles and run a windshield washer hose to the windshield washer tank. I put the "T" dead center between the nozzles. To make sure they get equal pressure.
Then cut a 13/16 hole in the bottom, rear inside corner of the tank. I used my Unidrill to make this easy. Insert the grommet and then the pump. Then hook up the wires. Positive to the top wire in this picture.
Installed in the car. The newer (90s) Caps for the
washer tanks fit on these older tanks You don't need the
hose and pickup, just the breathing hole in the new cap. (new cap
Picture from below
It works great, better than ever
before. No problems with priming the pump. Just got to make
sure I keep the tank full. Now its time to make all the
hoses and wiring look pretty.