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#867327 07/17/2012 12:13 AM
Joined: May 2012
Posts: 12
M
New Guy
New Guy
M Offline
Joined: May 2012
Posts: 12
Hi, have a 58 GMC 1 ton dually, have vac operated winshield wipers, they won't go through their full cycle, they will only go so far and the only way to get them to return to start is to turn them off. Any tips?

Joined: Sep 2001
Posts: 29,269
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,269

Joined: Oct 2007
Posts: 231
1
Shop Shark
Shop Shark
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Joined: Oct 2007
Posts: 231
http://www.chevytalk.org/fusionbb/showtopic.php?tid/205683/ this guy seems to have the same problem as you and I, and i plan on trying it out when i get a chance so i cant vouch for the idea. Googling windshield vacuum motor i found some other sites that most suggest doing the same thing as the link above. As an add on question does anybody know the amount of vacuum needed to operate the motor?

Joined: Sep 2010
Posts: 575
B
Shop Shark
Shop Shark
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Joined: Sep 2010
Posts: 575
Morgan - my wiper was doing the same thing. I found a few posts showing how to rebuild, including this one by Denny.

https://www.stovebolt.com/ubbthread...Main=122331&Number=832261#Post832261

And a link to his photos here:

http://www.pbase.com/dennygraham/spare_tyco_vacuum_motor&page=all

Of course I didn't refab all the parts that Denny does so wonderfully, but I just cleaned the paddle, relubed it. And put it back together using a thin layer of gasket maker between the 2 halves.

Can't hurt to try.

Mark

Joined: May 2012
Posts: 12
M
New Guy
New Guy
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Posts: 12
Thanks Mark, gonna try and fix it up myself.

Joined: Jan 2009
Posts: 1,644
P
Shop Shark
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Joined: Jan 2009
Posts: 1,644
Go to my photobucket I have a rebuild that I've done.It may help you.




Pete

Last edited by Pete52; 07/22/2012 7:53 AM.

Moderated by  klhansen 

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