Wiper speed question
 

I have a one speed wiper and it runs faster than I want it too. Is there a way by using a rheostat to make the speed adjustable?

If you have done this, what did you use for a switch/rheostat?

Re: Wiper speed question
 

This switch will give you two speeds. I tried one on my truck and it gave me slow, and dead slow. If your normal speed is faster, this might be just what you're looking for.

http://www.ronfrancis.com/prodinfo.asp?number=WS%2D1

Re: Wiper speed question
 

I think you had showed me that one before. Im kinda looking for something like a dash light dimmer switch.

Re: Wiper speed question
 

Hopefully someone with a lot more electrical experience will chime in, but it seems like you could go to any electronics store and pick up a rheostat of sufficient capacity to handle the load of the wiper motor in continuous operation, and wire it into the wiper circuit. Not sure where you would find out the amperage draw of the wiper motor, or how this converts into watts. Perhaps someone at the supplier site could help. I see Newark for example has a “Live Support” button available.

Something like this:

http://www.newark.com/jsp/search/pro...FC-GB100000001

Re: Wiper speed question
 

Re: Wiper speed question
 

Back from Newerk tech support chat.

The questions asked that I couldnt answer were Ohms and Watts needed. Im sure they have something that would work, but I didnt know how to answer those questions.

Re: Wiper speed question
 

man I remember when those wiper delays were the latest in high tech!

and pricey!

Re: Wiper speed question
 

Good link!! That looks like something I can gut and use at the wiper switch.

Re: Wiper speed question
 

Here is it.

http://www.jcwhitney.com/wiper-delay...wx?filterid=j1

Re: Wiper speed question
 

But don't you want to slow the speed down....not delay the actions?

Re: Wiper speed question
 

That is true.

I figured out the Wattage portion of this puzzle. Its Volts x Amps = Watts. The motor is probably 15-20 amps. That would put it in the 180-240 watt range. I dont know what ohm rating I need for resistance.

Re: Wiper speed question
 

You need to measure the actual current draw with a multimeter in order to calculate the resistance needed. I am pretty sure its not going to be anywhere near 15-20 amps unless you heavily load the motor. You could try a heater motor control, but if my experience is any guide, it will NOT have enough resistance. Maybe a coil resistor might do the job.

Ray

Re: Wiper speed question
 

Nice! Definitely need to order one of these up....then install a washer fluid setup.

Re: Wiper speed question
 

I would think the coil type is what im looking for. If you look at the headlight switch in our trucks, there is a ceramic area for the light dimmer. Its probably going to be like that.