 Windshield Washer Conversion, From Water Valve Control to Microswitch |
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| davep |
 Mar 4 2007, 09:23 PM
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#30
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914 Historian  Group: Benefactors Posts: 5,137 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada   |
So, I have made a prototype switch holder, and it works. The switch will not carry the current, so a relay would be required along with a fuse and the pump. Should I make this into a turnkey kit?
Attached image(s)  
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| iamchappy |
Mar 4 2007, 09:34 PM
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#31
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It all happens so fast! Group: Members Posts: 4,893 Joined: 5-November 03 From: minnetonka, mn Member No.: 1,315 Region Association: Upper MidWest  |
Very nice, that looks great!
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| Spoke |
Mar 5 2007, 02:05 AM
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#32
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Jerry Group: Members Posts: 6,978 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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Dave,
Your setup looks good. Ideally the switch should be able to carry the current of the pump. Adding a relay is an extra complication that could be avoided with a 1 to 5 amp switch. What current rating is your switch? Spoke |
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| Spoke |
Mar 5 2007, 02:09 AM
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#33
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Jerry Group: Members Posts: 6,978 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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QUOTE(cary @ Feb 27 2007, 08:49 AM)  A couple of questions. 1. You still have to drill out the tank cap to vent ? Correct. 2. Wiring. You only need 2 wires right ? One to body gound. One to the pump. 3. Take the HOT 12 volts straight to the pump. Switch with the ground. Therefore not having any heat or shortening issues in the steering column. 1) Yeah, as shown in Sir Andy's thread, the cap needs to be drilled out. 2) Wiring: 1 switched 12V, fused lead to the switch, then to the pump. Ground wire from the pump to chassis ground. 3) Switch can be 12V switched or ground switched. Switching ground requires 2 wires to go from interior to front trunk. One is 12V HOT and one is switched ground. My car already has a switched 12V wire run to the trunk. The ground wire for the pump is connected to chassis ground in the trunk. Spoke |
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| davep |
Mar 5 2007, 07:40 AM
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#34
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914 Historian Group: Benefactors Posts: 5,137 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada |
This switch is about 0.25 amp, and another I will try to sample is about 3 amps. Not sure of the inrush current of a washer pump, and that is what will burn the switch contacts. Relay can be a 10 amp unit that is mounted in an easy to replace location. Also have to have a fuse. I want this to be a reliable solution. Also have to figure out the pump mounting. The six has the mount locations, and I'd like to duplicate this and the 914/6 pump. I can supply the vent for the washer bottle cap.
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| Eric_Shea |
Mar 5 2007, 12:20 PM
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#35
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PMB Performance Group: Admin Posts: 19,274 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains |
Help. I received my 924 switch and opened it this Sunday. It was kinda cracked up where the mounting screws go into it and, it didn't seem to have a pull/on washer pump feature.
Am I missing something? The right stalk should pull correct? |
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| Aaron Cox |
Mar 5 2007, 01:11 PM
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#36
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
sometimes its hard to feel the pull feature when it isnt mounted.....
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| Eric_Shea |
Mar 5 2007, 02:44 PM
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#37
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PMB Performance Group: Admin Posts: 19,274 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains |
The high beam on the left stalk is fairly obvious.
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| Aaron Cox |
Mar 5 2007, 03:27 PM
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#38
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
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| Eric_Shea |
Mar 5 2007, 03:43 PM
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#39
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PMB Performance Group: Admin Posts: 19,274 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains |
I see you have the same cracks...
Let me count wires. How many should I have? 11-12? (that's about all I can see in that pic) |
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| Aaron Cox |
Mar 5 2007, 03:45 PM
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#40
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
you should have 2 more than a stock 914 switch (just the washer section)
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| Eric_Shea |
Mar 5 2007, 03:48 PM
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#41
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PMB Performance Group: Admin Posts: 19,274 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains |
Well... the stock one is on the column and it ain't coming off until I've figured out that I have the right switch etc. So far... I have the switch and the relay and the new pump.
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| davep |
Mar 9 2007, 09:01 AM
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#42
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914 Historian Group: Benefactors Posts: 5,137 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada |
Just got in a sample of a similar switch, but 5 amp rated. That should be good enough to work without a relay I think. I'm going to convert my own cars anyway.
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