The Stovebolt Page Forums Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Links | Events | Features | Search | Hoo-Ya Shop
Stovebolt Supporter!
Indianapolis

Fabrications

Talk to Randy Domeck

See what they

can do

for you
!


Stovebolt Site Search
 
Old Truck Calendars
Months of truck photos!
Nothing like an old truck calendar

Stovebolt Calendars

Some New
Some Vintage
Many in Production

Check for details!

Will be updating all year around!


Who's Online Now
27 registered members (Bill Trotter, 3100Cummins, dougs, 2manyprojects, 4 invisible), 507 guests, and 3 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums47
Topics111,055
Posts874,344
Members40,714
Most Online940
Apr 5th, 2017
Image Posting Policy
Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
Vacuum wiper normal operation? #1234496
Tue Sep 12 2017 10:07 PM
Tue Sep 12 2017 10:07 PM
G
Greg Brown  Offline OP
Wrench Fetcher
Joined: Mar 2014
Posts: 30
Bellevue, WA
I have a '49 3100 with what i believe are the original vacuum powered wipers. I've always had to move the wiper switch back-and-forth manually - to one side to get them to go one way, and then to the other side to get them to go back. I just assumed that was the way these old things worked. I was at a car show this past weekend and a guy told me the wipers should go back-and-forth without having to continually move the switch. Is that information correct, and if so, does anyone have an idea why mine would work the way they do?

Thanks,
Greg


Greg Brown
'49 Chevy 3100
Re: Vacuum wiper normal operation? [Re: Greg Brown] #1234499
Tue Sep 12 2017 10:15 PM
Tue Sep 12 2017 10:15 PM
Justhorsenround  Online

Grease Monkey
Joined: Apr 2005
Posts: 4,560
Central, Oklahoma
Wiper should go back and forth without you having to constantly move the switch. Poor vacuum to motor or motor needs rebuild.🛠


Martin
'62 Chevy C-10 Stepside Shortbed
'47 Chevy 3100 5 Window (long term project)


"I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line" and lock up those on the wrong side of that line.

Re: Vacuum wiper normal operation? [Re: Greg Brown] #1234505
Tue Sep 12 2017 10:30 PM
Tue Sep 12 2017 10:30 PM
69Cuda  Online
Big Bolt Forum Moderator
Joined: Dec 2015
Posts: 1,527
Seattle, Wa.
yes, they should go back and forth. Your vacuum motor may be gummed up, and/or all dried out. Make sure you have good vacuum lines going to it with no leaks, pull the motor apart and clean and lube everything, and put it back together (make sure there are no vacuum leaks). When you turn it on, you are not getting enough vacuum to move the wipers all the way up and then back down so, they stall. ONce you turn the switch back off, it pulls it back into "park" and returns the wipers to the "park" or "home" position.


Mike

1955 Chevy 6400 ex-flatbed (no bed now!)
In the Stovebolt Gallery


1958 Chevy 6400 flatbed W/dump
In the Stovebolt Gallery

1959 Chevy Suburban Owned for almost 20 years, Daily Driver -- sold May 2016
In the Stovebolt Gallery

Sufficient unto the day is the evil thereof
Re: Vacuum wiper normal operation? [Re: Greg Brown] #1234510
Tue Sep 12 2017 10:43 PM
Tue Sep 12 2017 10:43 PM
tclederman  Online
Boltergeist
Joined: Sep 2001
Posts: 27,703
Jarvisburg, NC


Tim
1954Advance-Design.com
1954 3106 Carryall Suburban - part of the family for 47 years
1954 3104 5-window pickup w/Hydra-Matic
Z-series (54/55) GMC 350 (2-ton) COE
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engine are not "splash oilers" - this is a splash oiler.
Re: Vacuum wiper normal operation? [Re: Greg Brown] #1234512
Tue Sep 12 2017 10:49 PM
Tue Sep 12 2017 10:49 PM
G
Greg Brown  Offline OP
Wrench Fetcher
Joined: Mar 2014
Posts: 30
Bellevue, WA
Thank you guys for the quick reply. I'm pretty sure I have adequate vacuum going to the motor, so it looks like I have another project for the list...

Thanks again,
Greg


Greg Brown
'49 Chevy 3100
Re: Vacuum wiper normal operation? [Re: Greg Brown] #1234620
Wed Sep 13 2017 03:38 PM
Wed Sep 13 2017 03:38 PM
truckernix  Offline
Master Gabster
Joined: Mar 2002
Posts: 9,057
Bracebridge Ontario Canada
The vacuum motor has a little switch that is activated at the end of it's travel. It switches the feed to the other side of the paddle. If that valve hangs up, it will act just as you described. I have an NOS unit for my 38 and it was doing that. I freed up the valve and it works perfectly.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Re: Vacuum wiper normal operation? [Re: Greg Brown] #1234631
Wed Sep 13 2017 06:05 PM
Wed Sep 13 2017 06:05 PM
G
Greg Brown  Offline OP
Wrench Fetcher
Joined: Mar 2014
Posts: 30
Bellevue, WA
Thank you. That's very helpful and what I was hoping to learn.


Greg Brown
'49 Chevy 3100
Re: Vacuum wiper normal operation? [Re: Greg Brown] #1234641
Wed Sep 13 2017 07:32 PM
Wed Sep 13 2017 07:32 PM
H
Hotrod Lincoln  Online
Boltergeist
Joined: Feb 2004
Posts: 16,632
Dellrose, TN
Look for an open port on the wiper motor that sticks out enough to attach a piece of vacuum hose. Rig up a Coke bottle of Diesel fuel with a short pierce of hose in it, turn on the wipers, and let the vacuum draw the liquid through the motor. It will clean and lubricate the wiper motor without ever having to remove it from the vehicle, and the Diesel will go through the intake manifold and clean and lubricate the valve guides before being burned in the combustion chamber. We used to use 6-ounce cans of Aviex tune up oil to rehab wiper motors that way, but Diesel will do the same job.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Vacuum wiper normal operation? [Re: Greg Brown] #1234655
Wed Sep 13 2017 08:53 PM
Wed Sep 13 2017 08:53 PM
tclederman  Online
Boltergeist
Joined: Sep 2001
Posts: 27,703
Jarvisburg, NC


Tim
1954Advance-Design.com
1954 3106 Carryall Suburban - part of the family for 47 years
1954 3104 5-window pickup w/Hydra-Matic
Z-series (54/55) GMC 350 (2-ton) COE
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engine are not "splash oilers" - this is a splash oiler.
Re: Vacuum wiper normal operation? [Re: Hotrod Lincoln] #1234685
Thu Sep 14 2017 12:01 AM
Thu Sep 14 2017 12:01 AM
G
Greg Brown  Offline OP
Wrench Fetcher
Joined: Mar 2014
Posts: 30
Bellevue, WA
Originally Posted by Hotrod Lincoln
Look for an open port on the wiper motor that sticks out enough to attach a piece of vacuum hose. Rig up a Coke bottle of Diesel fuel with a short pierce of hose in it, turn on the wipers, and let the vacuum draw the liquid through the motor. It will clean and lubricate the wiper motor without ever having to remove it from the vehicle, and the Diesel will go through the intake manifold and clean and lubricate the valve guides before being burned in the combustion chamber. We used to use 6-ounce cans of Aviex tune up oil to rehab wiper motors that way, but Diesel will do the same job.
Jerry


This is a great example of the value of these forums. Old timer tricks like this are priceless.


Greg Brown
'49 Chevy 3100
Page 1 of 2 1 2

Moderated by  Justhorsenround 

Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Links | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 7.6.1.1