Re: 53

Posted by HH56 On 2023/1/28 11:32:13

It does. Turning the knob towards you moves a cable which in turn is connected to a slide valve on the wiper motor and makes it move to admit vacuum into the motor and start it moving. The more you turn it the farther the valve slides and will give some speed control. If you have the optional windshield washer turning the knob toward the dash and holding it against a spring for a few seconds causes the slide valve to move in the other direction and opens a port on the motor to provide vacuum to the washer pump.

Make sure there is good strong vacuum at the hose connected to the nipple on the passenger side of the motor. If you have vacuum and the slide valve is moving there is a good chance the motor needs to be rebuilt which is a fairly common issue with the old motors that are worn or have gaskets and seals dried out.

If you find the motor needs rebuilding Ficken Wiper Service is about the only place that has parts. They do a great job at reasonable cost and with relatively fast turnaround.

Here is a bit from the 52 owners manual chosen because it is a better scanning. 53 reads almost exactly the same and both manuals are available for download in the literature archive.

Attach file:

---

  wiper.jpg (122.33 KB)