Washer Pump Rebuild

[RandyMolson]

The windshield washer pump for my 1967 carbureted 1600 is a stand alone unit that clamps to suction and discharge hoses, as opposed to being attached to the reservoir as in later models. On my unit, the pump motor housing can be removed from the pump base by removing four 6-mm nuts. The motor shaft connects to the pump shaft with a simple spindle-and-plate arrangement that is best understood by looking at the photo. The weak link with this arrangement was the pump shaft plate, which was made of carbon steel and eventually corroded into rust chips. Therefore, the motor would spin but no longer was connected to the pump.

I did a basement micro-scale rebuild to replace the pump shaft plate with a durable, stainless steel plate. I cut a piece off a standard hose clamp to provide the new plate. I used my thinnest Dremel cutting wheel and a steady hand to very carefully remove the residue of the old plate from the pump shaft. This resulted in a pump shaft with a slot in the end for me to insert the new plate. Using the Dremel and my bench grinder, I ground down the new plate so it would fit snugly in the shaft slot, and also meet the length/width requirements of the spindle connection. Once everything fit perfectly, I glued the plate in place with a 2-part epoxy.

[Mike Self]

but I used a little piece of stainless steel spine from a dead windshield wiper blade refill...The pump's still working, too!

BTW, pack a little white grease into the area between pump and motor to keep the motor's armature shaft from rusting...

cheers

mike

[c.d.iesel]

.....WHY - when you can buy new ??????????//

http://www.mercedes-benz-parts-direct.com/epc-items.asp

[SteveJ]

Because you can't buy PATINA!

:^)

Let's see.

-20 outside,

snow on the ground,

car is not going outside for a long while.

It is something small you can fiddle with at the kitchen table without getting in trouble, and feel like a giant when you make it work. Hooooorah!

I didn't know they were still available. How much$?

[RandyMolson]

.....WHY - when you can buy new ??????????//

http://www.mercedes-benz-parts-direct.com/epc-items.asp

Why?? In order to justify the cost of the Dremel and Craftsman mini-wrench set, of course!

[SteveJ]

Oh yeah.

I forgat that one too.

I got my circular saw and my plunge router all because the wife wanted a picnic table.

She is convinced that every job known to mankind takes some special tool. I tell her that is why mechanics charge so much. (OK, it's partially true) Hang a picture? OK, but I will have to get that "special" hammer to do it.

[dlhoovler]

Rebuilding my (later-style) pump was a fine job for a couple of evenings one winter. And it gives a feeling of accomplishment every time I use the windshield washers.

Plus I'm cheap. :-)

-Dave