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05-03-2023, 07:01 PM | #1 |
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Join Date: Jul 2017
Location: Joshua, Texas.
Posts: 1,303
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Vacuum wiper motor
I rebuilt my factory vacuum motor a while back. Tested it and it worked on the bench.
Installed it and I'm not sure how the switch hooks up to it. All that was there when I got it was a broken piece of bailing wire. What goes between the switch the the motor?
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05-03-2023, 07:33 PM | #2 |
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Join Date: Mar 2022
Location: Surrey BC
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Re: Vacuum wiper motor
you are missing the bottom of the knob - a right angle piece with a stud
and also a bent rod that goes from stud to the lever on the wiper motor. Carb linkage sort of bits I should have a sample at home I could take a picture of if no-one else has one handy |
05-03-2023, 08:46 PM | #3 |
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Re: Vacuum wiper motor
I'd appreciate it, thank you.
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05-03-2023, 11:00 PM | #4 |
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Re: Vacuum wiper motor
Earlier I miss interpreted your picture as the bolt thing in the foreground being the wiper control knob. Your control knob does have the bottom, it is just missing the bolt mine is also missing:
This is from a 1953. You need to make a simple straight piece of metal for a link with holes 4 1/8 apart and get a couple #8 or #10 machine screws and nylock nuts . The screw to left here is lined up with the 4, it just does not look like it from camera angle. When it is put together the link is at a weird angle, leave the screws a bit loose and you should be good to go. GM did not put any more effort into this than they had to. |
05-04-2023, 12:03 AM | #5 |
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Re: Vacuum wiper motor
Perfect! Thank you.
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05-04-2023, 02:56 AM | #6 |
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Join Date: Jul 2007
Location: Toppenish, WA
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Re: Vacuum wiper motor
All I have ever seen on a 47/53 is the wire rod and the rubber bushings.
The wire slips in one end like a lot of rods on carbs do and the 90 goes though the cone shaped bushing. The only thing I might have with the wiper motor in it is the 1-1/2 ton and I am not sure that I can get up under the dash to get a photo of it.
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Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around. |
05-04-2023, 09:37 AM | #7 |
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Join Date: Mar 2022
Location: Surrey BC
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Re: Vacuum wiper motor
I was expecting a rod too. The two pieces in my pictures both came out of a running driving (in 1982) 1953 rust bucket which I sold as a title attached to a truck shaped pile of rust last year after cutting off everything I could see using. So if not original what is shown at least worked together. It is a sloppy link at what appears to be near binding angles from the factory but it works.
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