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68 wiper motor (Read 653 times)
Aug 3rd, 2016 at 7:27pm

Dennis1968   Offline
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I know someone has had to deal with this issue, a long hood was installed on my 68 before I bought it, the wipers do not work because most or all of the vacuum switches have been removed.
How do I wire the motor to eliminate the tach switch and over ride switch?
HELP!
 
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Reply #1 - Aug 4th, 2016 at 4:33am

68-73   Offline
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These sites should help, you can bypass all the switches. I had to do this on mine. The wiper moter is a very strange design. If you have a basic understanding of electronics it will make sense.
https://www.youtube.com/watch?v=XpkbCGkFaJs

http://repairs.willcoxcorvette.com/wp-content/uploads/2015/03/1968-corvette-wipe...

I did this around 14 yrs ago & it drove me nuts too. If you have any more questions I'll try & answer them
Alan Smiley
 
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Reply #2 - Aug 4th, 2016 at 3:06pm

Dennis1968   Offline
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Thanks for your help!
 
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Reply #3 - Aug 5th, 2016 at 6:23pm

Dennis1968   Offline
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Did the bench test as suggested in Willcox article, the wiper motor clicks but nothing else. it's a new 68 motor so I am puzzled.
Any suggestions?
 
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Reply #4 - Aug 6th, 2016 at 3:15am

68-73   Offline
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NCRS Member 68,73,77 Corvettes
Newark,Delaware

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Yes I did rig up a test station to figure out how the motor worked & that's not as easy as it looks. I don't think any 68 motor is new they are all rebuilt. If it clicks something is not hooked up correctly. Also you have to have good grounds especially at the switch under the dash. Other than the 12V + all the wires are grounds or go between the switch & motor. Sometime they ship you a 69+ motor & say it's a 68.  
Alan Smiley
 
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