Re: series 22
Posted by HH56 On 2013/2/4 10:39:05
It would go to the optional windshield washer. Most postwar vacuum motors thru 53 had the vacuum supply to motor on the passenger side and vacuum supply for the washer on the drivers side of motor.
Gently see if you can turn the wiper knob backwards and hold it against the spring. If so, that port should be active while holding the knob. If a washer jar and pump were connected, the vacuum would draw up a piston and charge the pump water chamber. Releasing the knob kills the vacuum and the piston spring would force the water out to the windshield. Once water started squirting you would then turn the knob in the usual direction to start the wipers & finish the cleaning.
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Gently see if you can turn the wiper knob backwards and hold it against the spring. If so, that port should be active while holding the knob. If a washer jar and pump were connected, the vacuum would draw up a piston and charge the pump water chamber. Releasing the knob kills the vacuum and the piston spring would force the water out to the windshield. Once water started squirting you would then turn the knob in the usual direction to start the wipers & finish the cleaning.
Attach file:
(32.97 KB)
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