47-55.1 Wiper motor measurement please - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MiraclePieCo · 03-08-2019, 05:49 PM

Does anyone have an original vacuum wiper motor lying around? (I can't count how many I've tossed in the garbage after doing electric conversions)

I need a center-to-center measurement between the two studs on the rocker arm that's attached to the output shaft.

Thanks!

cmayna · 03-09-2019, 11:26 AM

I'm coming up with 2 inches OC. Per your pic, is that rocker plate original? Looks kinda homemade.

MiraclePieCo · 03-09-2019, 05:36 PM

Quote:

Originally Posted by cmayna

I'm coming up with 2 inches OC. Per your pic, is that rocker plate original? Looks kinda homemade.

Thank you so much! That's just a random photo off the web to illustrate the measurement I needed. I'm constructing my own electric wiper system, but it helps to know the factory geometry rather than use trial and error.

cmayna · 03-09-2019, 09:52 PM

aha! Those posts are also 3/8" total in length with 1/4" of each shaft is dedicated for the wiper arms and then with a mushroom head at the end that helps contain the wiper are and the spring clip.

cmayna · 03-09-2019, 10:01 PM

Here's a pic of my extra motor

03-08-2019, 05:49 PM	#1
MiraclePieCo Registered User Join Date: Sep 2014 Location: USA Posts: 2,249	Wiper motor measurement please Does anyone have an original vacuum wiper motor lying around? (I can't count how many I've tossed in the garbage after doing electric conversions) I need a center-to-center measurement between the two studs on the rocker arm that's attached to the output shaft. Thanks! Attached Images __________________ 1951 Chevy Panel Truck

03-09-2019, 11:26 AM	#2
cmayna Registered User Join Date: Oct 2018 Location: Menlo Park, CA Posts: 90	Re: Wiper motor measurement please I'm coming up with 2 inches OC. Per your pic, is that rocker plate original? Looks kinda homemade. __________________ Craig My truck '50 Chevy 3100-5 window If I'm not working on my truck, I'm fishing with the wife or smoking Salmon. Last edited by cmayna; 03-09-2019 at 11:33 AM.

03-09-2019, 09:52 PM	#4
cmayna Registered User Join Date: Oct 2018 Location: Menlo Park, CA Posts: 90	Re: Wiper motor measurement please aha! Those posts are also 3/8" total in length with 1/4" of each shaft is dedicated for the wiper arms and then with a mushroom head at the end that helps contain the wiper are and the spring clip. __________________ Craig My truck '50 Chevy 3100-5 window If I'm not working on my truck, I'm fishing with the wife or smoking Salmon. Last edited by cmayna; 03-09-2019 at 09:55 PM. Reason: Forgot pic

03-09-2019, 10:01 PM	#5
cmayna Registered User Join Date: Oct 2018 Location: Menlo Park, CA Posts: 90	Re: Wiper motor measurement please Here's a pic of my extra motor Attached Images __________________ Craig My truck '50 Chevy 3100-5 window If I'm not working on my truck, I'm fishing with the wife or smoking Salmon.



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