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July 26, 2016
Windshield Washer Pump & Reservoir
[Click the pics for a larger view]
was looking for a simple job to do in between some of the other major
tasks that I've been working on lately. Rooting through one of
the boxes of random parts, I came up with the windshield washer pump
assembly consists of a square plastic jug as a reservoir with a small
12 volt DC pump mounted on its lid. A plastic pickup tube
descends into the jug with a screen filter fitting on its end. The bottle is strapped to a steel mounting bracket with an elastic belt.
quick test showed that the pump motor didn't turn. Figuring there
was nothing really to lose, I took the pump/motor assembly apart.
The armature was in a sorry state. The windings were burnt,
and it was crusted with some black substance. Now I'm sometimes
pretty good at bringing things back from the dead, but I know my limits.
replacement pumps are easy to find. I expect it's because this
part was pretty universal for British cars of the period. Here is
a replacement pump mounted on the original plastic cap. The new
unit is an exact fit, and even looks almost identical to the original.
mounting bracket was pretty rusty, but cleaned up well. I use JB
Weld as a high temperature filler for rust pits before powder coating.
wasn't really anything wrong with the pickup tube, but it was sort of
hard and discolored. The pickup screen actually had quite a bit
of debris stuck in it. I used some new plastic tubing, but it
seemed to want to kink on the tight bend into the pump inlet. A
light spring over the tubing fixed that.
elastic strap that holds the bottle to the bracket was toast. It
was hard to tell what it looked like originally, but from the color and
construction I'm betting it was something like Pirelli strap that is
used for upholstery. I only know this because I used it in
rebuilding my seats.
up was the piece of foam that fit between the bottle and the bracket.
I had a piece left over from my fuel tank rebuild that was a
little firmer than the original, but pretty close.
Another finished piece on the shelf.
was a nice leisurely job. the only real cost was for the
replacement pump at around $20 and another couple of bucks for the
tubing and strap.
Comments to Ed at: email@example.com
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