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Lingwendil
Samba Member
Joined: February 25, 2009
Posts: 3988
Location: Antioch, California, a block from the hood
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 Posted: Mon Feb 23, 2015 8:16 am Post subject: wiper park woes |
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So, I've got a 67 two-speed switch, And a 61 baja. I'm trying to far my functions correct, and what appears to be a late model wiper motor. No matter how I wire the park on this guy, I blew the fuse feeding the circuit. The two left hand terminals seem to have a few different diagrams I've found. What is the correct order of the terminals? I get two speeds just fine, but no park function. I've done a search and have glutamodos diagrams, but I am not sure how this guy should be wired. Also, my linkage hits my headlight switch. Can I order a drop in replacement motor assembly, or should I just grind the linkage to clear? It's just a slight interference. Thanks guys.
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jhoefer
Samba Member
Joined: May 19, 2011
Posts: 987
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| Posted: Mon Feb 23, 2015 12:29 pm Post subject: |
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Well, the problem is a late model wiper motor for use with a column-mounted switch has different internal wiring than an earlier wiper motor for use with a dash-mounted switch. Attempting to wire the park circuit on a late wiper motor to a dash switch will cause a short and blow the fuse.
You can see how the park ground was changed to be internally connected and the common cam connection changed to run externally through the switch (the rounded rectangle represents the entire wiper motor):
Early: http://www.netlink.net/mp/volks/schem/wiper2.gif
Late: http://www.netlink.net/mp/volks/schem/wiper.gif
To alter a late wiper to work with a dash switch, I have heard of people disconnecting/cutting the wire/contact between Terminal 31 on the cam and Terminal 31 on the motor (could just be to the motor chassis). A new external wire is then soldered to Terminal 31 from the cam, this wire is now Motor Terminal 31b. Terminal 53e on the wiper motor then gets wired directly to Terminal 53 on the wiper motor. You'd then connect terminals 53, 53b, 53a, and 31b on the motor to the matching terminals on the dash switch. I don't know how easy it is to do this mod or how much disassembly it might require as I've never done it.
Your other, simpler option is to simply buy an earlier style 2-speed motor that is compatible with your switch. |
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KTPhil 
Samba Member
Joined: April 06, 2006
Posts: 34021
Location: Conejo Valley, CA
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| Posted: Mon Feb 23, 2015 1:07 pm Post subject: |
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| jhoefer wrote: |
Well, the problem is a late model wiper motor for use with a column-mounted switch has different internal wiring than an earlier wiper motor for use with a dash-mounted switch. Attempting to wire the park circuit on a late wiper motor to a dash switch will cause a short and blow the fuse.
You can see how the park ground was changed to be internally connected and the common cam connection changed to run externally through the switch (the rounded rectangle represents the entire wiper motor):
Early: http://www.netlink.net/mp/volks/schem/wiper2.gif
Late: http://www.netlink.net/mp/volks/schem/wiper.gif
To alter a late wiper to work with a dash switch, I have heard of people disconnecting/cutting the wire/contact between Terminal 31 on the cam and Terminal 31 on the motor (could just be to the motor chassis). A new external wire is then soldered to Terminal 31 from the cam, this wire is now Motor Terminal 31b. Terminal 53e on the wiper motor then gets wired directly to Terminal 53 on the wiper motor. You'd then connect terminals 53, 53b, 53a, and 31b on the motor to the matching terminals on the dash switch. I don't know how easy it is to do this mod or how much disassembly it might require as I've never done it.
Your other, simpler option is to simply buy an earlier style 2-speed motor that is compatible with your switch. |
Good advice, though a '67 motor was still operated by a dash switch. Maybe he has a motor from a model much later than '67? |
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jhoefer
Samba Member
Joined: May 19, 2011
Posts: 987
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| Posted: Mon Feb 23, 2015 3:13 pm Post subject: |
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| KTPhil wrote: |
| Good advice, though a '67 motor was still operated by a dash switch. Maybe he has a motor from a model much later than '67? |
| Lingwendil wrote: |
| So, I've got a 67 two-speed switch... and what appears to be a late model wiper motor |
The fact he's popping fuses hooking up the park circuit pretty much confirms it's the late column-switch wiper motor, not the earlier dash-switch wiper motor. |
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