I have a '53 Nash Rambler with what looks like a fairly common vaccumm wiper motor. I want to replace it and short or a 3 or 400 dollar piece is there a motor that might get me two speeds and the ablility to rest like to old one. I have read about Newport, nice but I'd like something a little less pricey.
most of us don't know what the wiper motor on a Nash looks like, or where it's mounted. The type posted above works on earlier cars with no wiper transmission, the wiper arm mounts directly to the motor. If you want something nice, you're either going to have to do some fabricating, or pay the price of the aftermarket stuff. The problem is most wiper motors on newer cars turn a full circle, and the linkage makes the blades move only partway, but with vacuum wipers the motor turns only part of a turn back and forth. And AMC kept using vacuum wipers into the 70s, so there's not much later factory stuff from them that will help. good luck! maybe you can find the type of motor that newport uses, and adapt it? I think it's from a foreign car.
I am using an American Bosch 2 speed wiper with park that has the back and forth pivot you are after. Check for one through the internet.
I have used Newport Engineering wiper kits on several cars. They are very easy to install and work great. I don't remember them being too expensive.
Here is a group of photos of the current vac wiper motor: https://www.ebay.com/itm/274818522688 Here's an article by a guy who did a conversion similar to what you described: https://www.instructables.com/Classic-car-windshield-wiper-vacuum-motor-replacem/
If your into fabricating something you may want to look into a boat wiper motor. They swing back and forth, have an adjustable sweep and can be wired to park either left or right. Ongaro is one brand although a bit pricey, there are also some cheaper knockoffs available to.
Keep it vacuum and install an alternator off a Japanese diesel engine They have a vacuum pump on the back of them [that could "suck start" a Harley]
Rear window wiper motor from an suv or minivan. Here a couple of people used blazer motors. Technical - Electric Wipers for 1949 - `50 Chevy car | The H.A.M.B. (jalopyjournal.com) Electric RockStar wipers for cheap skates | The H.A.M.B. (jalopyjournal.com)
Has anybody used one of these? http://shop.schmittongaromarine.com/wiper-motors/3284-heavy-duty-wiper-motor.html
I've used '56 Chevrolet electric wiper motor units as a direct bolt-on replacement for those Trico vacuum units on early '50s ford units in the past. Simple: unbolt the oud one / bolt on the Chevrolet unit /attach the original cable to the electric unit /attach a fused 12volt wire to the unit's existing wire & now you have wipers.
I built electric wipers for my 62 classic. With the wiper motor inside the car it might be easier. I used these parts and a motor from a Ford truck (pick a part source) some 80s Ford trucks also had multi speed modules located under the dash attached to the switch. Look at the parts catalog. https://midwestbusparts.com/catalog/midwestbuspartscatalog.pdf go to Page 154 I got a bracket, arms and pivots. Took the arm off the vacuumn motor and welded to a coller and used a roll pin thru the collar and the shaft . Wired like Ford truck wire diagram If your wiper motor is inside the car it is is easier than if the current wiper motor is on the fire wall. I built a recess into the fire wall for the electric motor and sealed it. Looks like this.
Trico made most all of the vacc motors for manufacturers. Here is a 52. I have found that many of the aftermarket replacements cross over.
Does it work at all? Just slow? Just a thought. when i was poor and had to run one on my 56 chevy, when it got slow I would squirt brake fluid in the port. Would run like a charm for 3-4 months. have to do it again. Fluid swelled the seals. I know thats not what you asked for ,but just a thought. If you have a pic a part close by, spend a day walking through and see if you see anything close. Best of luck!!
I have used a headlight wiper motor from some Eurotrash vehicle, they have a 6mm shaft, about 90 degree swing , and a "park" position. Mid 90's Volvo, Audi, etc , used the same type .
I've ordered and Ongaro marine motor. Lots of adjustability and I believe I can make it work. (fingers crossed)