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 psimitar
Son of Jim - Creator of Good
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 posted on August 18th, 2012 at 11:07 PM |
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How to vac to electric windscreen washer
So i though I'd just put up some photo's of how I've used a microswitch to make a vac operated 78 T2's windscreen washer into an electric
washer.
Two wires to solder to the common terminal of the switch and to the NO (normally open) terminal and heatshrink the NC terminal.
Run one to a switched live fuse in the fusebox and the other to the positive term of the electric pump you've bought to plumb into the reservoir down
by the pedals. Negative pump term goes to chassis ground (zero volts).
Maybe use bullet connectors in the steering column so you can remove the switchgear easily in the future.
Hey presto, you now have electric washer jets 
madness is in the eye of the beholder  |
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Shuffs
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| posted on August 19th, 2012 at 06:24 AM |
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Don't you love it when something works!Is the miicroswitch rated to carry the load of the pump?If not,you could get the m/switch to activate a relay
and run the pump through the relay(fused of course)
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psimitar
Son of Jim - Creator of Good
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| posted on August 20th, 2012 at 12:00 AM |
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| Quote: | Originally
posted by Shuffs
Don't you love it when something works!Is the miicroswitch rated to carry the load of the pump?If not,you could get the m/switch to activate a relay
and run the pump through the relay(fused of course)
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10amp microswitch but yes you could use a relay if you wanted too
madness is in the eye of the beholder |
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Shuffs
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| posted on August 20th, 2012 at 08:02 AM |
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| Quote: | Originally
posted by psimitar
10amp microswitch but yes you could use a relay if you wanted too
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Wow 10amps,normally those small microswitches have piddly little points in them,and are only used for switching,but you won't have a problem if it
can carry a 10amp load.
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psimitar
Son of Jim - Creator of Good
Posts: 2506
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| posted on August 21st, 2012 at 12:15 AM |
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| Quote: | Originally
posted by Shuffs
| Quote: | Originally
posted by psimitar
10amp microswitch but yes you could use a relay if you wanted too
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Wow 10amps,normally those small microswitches have piddly little points in them,and are only used for switching,but you won't have a problem if it
can carry a 10amp load.
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Yea I was prepared to have to use a relay but there were a few that had 16amp contacts. Seriously reduces electrical life to 10,000 switches but
fairly easy to replace in a few years or more
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Phil74Camper
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| posted on August 21st, 2012 at 07:45 AM |
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Nice job. I did a simiilar job on my '74 Kombi years ago. I used an electric washer pump from a Mk1 Golf (just to keep it all VW).
Leigh Harris wrote two articles on converting old VWs to electric washers in the Club VW magazine back in '05. Read them here (scroll down to the
bottom):
http://www.clubvw.org.au/oldart014
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psimitar
Son of Jim - Creator of Good
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| posted on August 21st, 2012 at 10:04 PM |
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that article is pretty good. I had to make the bracket as a previous owner had managed to lose one of the pressed in brass inserts that the vac valve
screwed onto. Otherwise those inserts woulda made my life a bit easier
madness is in the eye of the beholder |
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