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opus21744
Samba Member
Joined: March 02, 2013
Posts: 5
Location: California
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 Posted: Thu Aug 21, 2014 7:54 pm Post subject: 6V/12V wiper motor question |
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Will appreciate if someone can enlighten/correct me:
1. I have seen pictures for NOS wiper motors for 58 to 67 bugs. Other than extra electrical connectors, they appear to look the same.
2. I understand motors for 58 to 64 are 6V single speed, 65 to 67 are 12V two speed. Is this correct?
3. Will the 65 to 67 12V motor fit the 58 to 64 wiper arm assembly without modification (if vehicle has been rewired to 12V)?
Thanks in advance for sharing. |
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glutamodo 
The Android
Joined: July 13, 2004
Posts: 26307
Location: Douglas, WY
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| Posted: Thu Aug 21, 2014 9:19 pm Post subject: |
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| On Bugs, 1965 and 1966 were single speed. It was only after the USA switched to 12V in 1967 that 2 speeds were added. |
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vdubmyk
Samba Member
Joined: October 24, 2008
Posts: 508
Location: Corona, CA
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| Posted: Thu Aug 21, 2014 9:35 pm Post subject: |
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I used a 12v armature in my 64 bug. I got it from Wolfsburg west. It only fits SWF wiper motors. Very easy to replace, there's a tutorial here on thesamba.
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64 stock bug, 12V (converted 6v unit), 40 hp, all documents even sales contract and dealer window sticker! |
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shortride
Samba Member
Joined: October 10, 2010
Posts: 1323
Location: Oklahoma
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glutamodo
The Android
Joined: July 13, 2004
Posts: 26307
Location: Douglas, WY
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| Posted: Fri Aug 22, 2014 7:47 am Post subject: |
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shortride: When you had the wiper motor changed to 12V, how was it done? 12V wiper motors should be 2-speed already. If it was the aforementioned armature replacement, then you're stuck with the one speed. Now if they put in a two speed motor, it's possible to wire up a single speed wiper switch to a two speed motor but you have to choose which of the speeds you want... all you'd have to do is get a 2 speed wiper switch and wire it up properly.
Back in the early 90s when conversion armatures did not exist, I used a pair of high power resistors to get two speeds out my 6V wiper motor, using the 1967 wiper switch (which was the only early-style wiper switch then available to buy new)
All of those wiring options are shown here:
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shortride
Samba Member
Joined: October 10, 2010
Posts: 1323
Location: Oklahoma
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| Posted: Fri Aug 22, 2014 8:08 am Post subject: |
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| glutamodo wrote: |
shortride: When you had the wiper motor changed to 12V, how was it done? 12V wiper motors should be 2-speed already. If it was the aforementioned armature replacement, then you're stuck with the one speed. Now if they put in a two speed motor, it's possible to wire up a single speed wiper switch to a two speed motor but you have to choose which of the speeds you want... all you'd have to do is get a 2 speed wiper switch and wire it up properly.
Back in the early 90s when conversion armatures did not exist, I used a pair of high power resistors to get two speeds out my 6V wiper motor, using the 1967 wiper switch (which was the only early-style wiper switch then available to buy new)
All of those wiring options are shown here:
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I haven't a clue how it was done. All I know is that the installer replaced the original 6 volt motor with a 12 volt that he showed me from a later model. Don't you still need a 2 speed switch even if the motor is a 2 speed? My car still has the original wiper switch. It runs noticeably slower than it did with the original 6 volt motor in it.
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Pearl White 1966 Sedan
Retired US Army - 21 years 11B40, 173rd Airborne Brig. - Vietnam Combat Veteran |
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glutamodo
The Android
Joined: July 13, 2004
Posts: 26307
Location: Douglas, WY
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| Posted: Fri Aug 22, 2014 12:41 pm Post subject: |
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| shortride wrote: |
| Don't you still need a 2 speed switch even if the motor is a 2 speed? My car still has the original wiper switch. It runs noticeably slower than it did with the original 6 volt motor in it. |
No, you can use a 1 speed switch and just hook it up to one of the two speeds of the 12V two speed motor. That was the first diagram I included above. |
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opus21744
Samba Member
Joined: March 02, 2013
Posts: 5
Location: California
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| Posted: Fri Aug 22, 2014 7:02 pm Post subject: |
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| Many thanks for all your feedback. I hv a better understanding and clearer picture now, especially with the circuit diagrams - special thanks to glutamodo for this. |
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Joel
Samba Member
Joined: September 04, 2006
Posts: 11099
Location: NSW Australia
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| Posted: Fri Aug 22, 2014 8:17 pm Post subject: |
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Why on earth would anyone fit a 2 speed wiper motor then only wire it up to run on one speed?
a bit like having a V8 engine and pulling 4 of the spark plugs out.
2 speed switches can be got very easy and the joy of having 12 volt wipers is 2 speeds.
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Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle |
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opus21744
Samba Member
Joined: March 02, 2013
Posts: 5
Location: California
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| Posted: Sat Aug 23, 2014 4:57 pm Post subject: |
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| joel: it's a work around for older bugs that have been rewired from 6v to 12v whilst maintaing the wiper switch knob as original. cheers. |
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glutamodo
The Android
Joined: July 13, 2004
Posts: 26307
Location: Douglas, WY
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| Posted: Sat Aug 23, 2014 7:06 pm Post subject: |
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| Yeah, if you want a push/pull style wiper switch, you're stuck with one speed. I didn't mind going to a rotary 1967-style 2-speed switch in my 62, it still uses the same knobs, the only time it looks different is when you have the wipers turned on. |
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Aussiebug
Samba Member
Joined: June 03, 2002
Posts: 2162
Location: Adelaide Australia
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| Posted: Sat Aug 23, 2014 8:28 pm Post subject: |
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If your 6v wipers work just fine on 6v you'd rather not touch them, you can safely run them on 12v with a very simple circuit (4 components) from radio shack etc. This is a current limiter which prevents the wipers from over speeding, whilst not getting red hot like a dropping resistor. It means you don't have to take your wiper assembly out of the car, and with an additional bit of experimentation on the two resistor values, you can even get 2speeds, so long as you fit a two speed switch.
Go to our web site www.vw.resource.com and click on search. Search for 6v wipers and go to the article Running your 6v wipers on 12v.
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Rob
Rob and Dave's aircooled VW pages
Repairs and maintenance for the home mechanic
http://www.vw-resource.com |
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Joel
Samba Member
Joined: September 04, 2006
Posts: 11099
Location: NSW Australia
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| Posted: Sat Aug 23, 2014 11:51 pm Post subject: |
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| opus21744 wrote: |
| joel: it's a work around for older bugs that have been rewired from 6v to 12v whilst maintaing the wiper switch knob as original. cheers. |
you can fit the later model 2 speed switches and just fit the ivory knob and it looks all stock, we did that in a mates 67 when we converted it to 12 volt.
Like Andy says it will just turn instead if twist.
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Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle |
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Dynaflash
Samba Member
Joined: January 10, 2014
Posts: 99
Location: Georgia
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| Posted: Wed Dec 24, 2014 6:50 pm Post subject: |
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Anyone have any info on installing a 68 and up wiper assembly in a 62 bug?
My bug is 12 volt and I don't mind using a 68 style switch. Just need to know if it will fit the car and how to wire one before I make the purchase. |
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