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Discussion Starter #1
I searched to the ends of the internet and wasn't able to find anyone who was able to break the code on how to make a fully functioning home-made version of DSE's "Selecta Speed" wiper motor - so I did it.

Here's what you need:

- The ability to solder
- A wiper motor and pigtail* from a 2000 Cadillac Deville*. (1. You can reuse the pigtail or order a new weatherpack connector if you want to // 2. Wipers from other GM makes & models will work - this is what I used and what my wiring diagram is built for)
- A rotary switch with at least 8 positions ( I used part number 70152412 from Allied Electronics https://www.alliedelec.com/default.aspx )
- 1 each of the following resistors: 39k / 82k / 150k / 270k / 680k (which you can also buy from Allied Electronics - use the carbon fiber wound .25 watt versions)
- Lengths of 14ga and 22ga wire

What you'll need to do if you want to remove the motor from the junkyard:
The wiper motor is on the drivers side of the cowl, underneath the plastic wiper blade cover plate. You'll need torxs bits to remove the motor from the bracket as well as metric sockets. The wiper arms need to be removed in order to gain access, so bring a pry bar. I also brought a battery operated sawzall to cut down the mounting bracket. You don't need the bracket, but I got it to make hiding the motor under my fender (68 Camaro) easier - I can just trace the mounting holes easier.

When complete, the wiper will have a "mist" setting, 4 different delay modes, low and high speed. There is also an option to have the wipers make two passes when you use your windshield washer. As with the DSE model, this wiper motor does not have a washer pump - so you have to rig up a separate switch. I've got an idea of how I will do that, and will post details if/when I do it. I would like to find a rotary switch that also has a push button feature or a momentary first position on it, but haven't sourced that yet. If I do, you would then have a full functioning wiper motor from one switch, just like in the Cadillac (or most other modern cars).

Switch settings will result in the following:
1 - Off
2 - Mist - 20 second pause between wipes
3 - Delay 1 - 8 second pause
4 - Delay 2 - 4 second pause
5 - Delay 3 - 2 second pause
6 - Delay 4 - 1 second pause
7 - Low (continuous)
8 - High (continuous)

Other helpful hints before I get into the wiring diagram - if you're wanting to play with modern parts on an older car - try looking at Auto Zone or Advance Auto's website for wiring diagrams. I think I used Advance Auto (can't remember) and after signing up I had access to Cadillac's wiring diagrams - incredibly handy.

Below is the wiring diagram from Cadillac:






Below is my version of the diagram with the rotary switch (in the center of the upper portion, you'll see dotted lines and a view of the rotary switch - this reflects what you see drawn out to the left and right of the switch with the high/low description):









Below is the connector details


Here's what the wiring diagram looks like when laid out on a board (might make it easier to follow):



The yellow wire to the right (with the resistors attached) goes to the low/speed input wire (blue in original diagram) as does #6. Wire #7 (small red wire) is connected to the high speed input (purple wire in original GM diagram).



I'm waiting on my battery to charge on my camera then I'll be able to post a movie of the motor - in case you want to verify it works.
Another note in case you're wondering - the motor will self park. So if its in mid wipe and you turn off the switch, it will move back to its parked position. This motor will not however work for those with hidden wipers that need to 'retract'. I believe I've seen a post on how to modify the motor to work for hidden wipers, but since my Camaro doesn't need them, I didn't pay much attention to it.

I may solder it all up tonight or tomorrow, and I'll post pictures of how the switch looks with the resistors when that is done.

Let me know if there's any interest in more details - I'll be glad to help out if I can.


More to follow - John
 

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Interesting write up :thumbsup:
 

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Discussion Starter #3
Here are some pictures of the switch being soldered:
From left to right: Power (wire) / 680k / 270k / 150k / 82k / 39k / low speed wire (green alligator clip will be blue wire below) / high speed wire (yellow alligator clip will be brown wire below)





Brace added to ensure the wires don't get pulled out (I drilled out the rivets used to hold the switch together and replaced with machine screws which gives me some standoff):


Resistors shrink wrapped and tied into speed selector/low speed wire:





Now I just need to find some large diameter shrink wrap for the outside of the switch.


Video of the wiper working:

This is also being posted on Protouring http://www.pro-touring.com/showthread.php?93298-Delay-Wipers-uncovered&p=940466#post940466
 

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This is great information. Any thoughts on how to hook this up to the original switch? I don't really care about the delay function since I don't ever intend on driving my car in the rain anyway. I just like the low profile appearance of this wiper motor, but not to the tune of $350.

Great work. Appreciate any feedback regarding compatibility with the original style switch.

Thx.
 

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Discussion Starter #5
Blue - if you want to use the new motor on high and low only, you just need to connect your original low wire to the motors blue wire and your original high speed wire to the motors purple wire. Youll also need to run the motors black wire to ground.
Hope that helps.
 

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Does this motor bolt up to the stock location on a 67, 68 or 69? Or is bracket or some sort of mounting need to be fabricated to mount to the firewall?

I think for about $80.00 American Autowire makes a delay box for stock wipers.
 

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Discussion Starter #7
Joe - The wiper motor doesn't bolt up directly to replace the stock motor. I describe it a little bit on my webpage (https://sites.google.com/site/huntersswitch/home). If you want to put the motor where the original one was, you'll either need to weld sheet-metal over the original hole (since the original motor has a large portion protruding into the cowl) or use a plate to accomplish the same thing (cover the hole). If you decided to weld over the original hole, the mounting of the motor would be similar to what I describe on the page for mounting it to a smooth firewall - no plate required, drill 4 holes.
I'm not familiar with that specific delay box, but most I have seen have a separate knob to control the original low function - so you're introducing another switch. Of course you have to add another switch with my system because you lose the washer function, but that can't be avoided even if you go with the popular system on the market which uses the same wiper motor.
 

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There is a guy on eBay selling the same type of home made switch with harness for $110. Search"Dse wiper", and you will find it
 

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Discussion Starter #9
That guy is me :)
Built a bunch of switches based on request and then guys changed their minds so now I'm stuck with them so I decided I'd try eBay.
 
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