The Ford Barn

bullrunmotor · 09-04-2017, 09:00 PM

When I start my car up the wipers will move/bump for a moment with the wiper switch "off". When I turn on the switch they will sweep to the right but not return. If I work the switch on and off they will work from side to side like they should with quick response. I'm wondering my vac. on/off switch is bad or motor wiper motor needs rebuilding. Thanks for advice.

grumppyoldman · 09-04-2017, 09:35 PM

Sounds like the hoses are on the switch in the wrong positions. Mark them so you don't put them in the same place twice, find the supply hose put it on one of the tubes. Work the switch back and forth. Check with your finger and see which tube has suction on ti place one of the other hoses from the motor. You can tell which way the blades are going to go, when you pull switch out. Go from there until they work like you want them. Al

Graeme / New Zealand · 09-05-2017, 03:54 AM

My 48 NZ assembled ford carries the 41 US dash .As grumpy says, it will your hoses on the wrong way round. Been there done that.

GB

4dFord/SC · 09-05-2017, 05:52 AM

While you have the supply hose off, squirt some oil in it to lubricate the felt paddle in the motor. Over time, it can dry out and shrink, causing the motor to lose vacuum.

Terry,OH · 09-05-2017, 06:36 AM

Sponsored Links (Register now to hide all advertisements)

The device that reverses the motor and shuts it off in the proper position is under the small cover at the back of the motor with the motor shaft at the front. If you remove the metal cover you can spray a good lubricant to free up operation and any hardened dirt or grease.

09-04-2017, 09:00 PM	#1
bullrunmotor Senior Member Join Date: May 2010 Location: Virginia Posts: 210	Vacuum wipers question on a '41 When I start my car up the wipers will move/bump for a moment with the wiper switch "off". When I turn on the switch they will sweep to the right but not return. If I work the switch on and off they will work from side to side like they should with quick response. I'm wondering my vac. on/off switch is bad or motor wiper motor needs rebuilding. Thanks for advice.

09-04-2017, 09:35 PM	#2
grumppyoldman Senior Member Join Date: Apr 2017 Location: Texas Gulf Coast Posts: 727	Re: Vacuum wipers question on a '41 Sounds like the hoses are on the switch in the wrong positions. Mark them so you don't put them in the same place twice, find the supply hose put it on one of the tubes. Work the switch back and forth. Check with your finger and see which tube has suction on ti place one of the other hoses from the motor. You can tell which way the blades are going to go, when you pull switch out. Go from there until they work like you want them. Al

09-05-2017, 03:54 AM	#3
Graeme / New Zealand Senior Member Join Date: May 2010 Location: Lower Hutt , New Zealand Posts: 2,126	Re: Vacuum wipers question on a '41 My 48 NZ assembled ford carries the 41 US dash .As grumpy says, it will your hoses on the wrong way round. Been there done that. GB __________________ "you can't make honey out of dog sh*t" "You're a long time looking at the lid"

09-05-2017, 05:52 AM	#4
4dFord/SC Senior Member Join Date: May 2010 Location: Columbia, SC Posts: 1,579	Re: Vacuum wipers question on a '41 While you have the supply hose off, squirt some oil in it to lubricate the felt paddle in the motor. Over time, it can dry out and shrink, causing the motor to lose vacuum.

09-05-2017, 06:36 AM	#5
Terry,OH Senior Member Join Date: May 2010 Posts: 4,751	Re: Vacuum wipers question on a '41 Sponsored Links (Register now to hide all advertisements) The device that reverses the motor and shuts it off in the proper position is under the small cover at the back of the motor with the motor shaft at the front. If you remove the metal cover you can spray a good lubricant to free up operation and any hardened dirt or grease.