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post #1 of (permalink) Old 02-19-2003, 06:15 PM Thread Starter
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CJ Wiper Motor ?

Well I saw a wiper motor on ebay for $10, and I had melted the insulation off of the wires on mine, so I bought it. I get it in the mail only to find that the plug is different than the one I have in my CJ now. The one that is in my '77 CJ has a 3 prong plug that is kinda in an L shape. The one I got off ebay has 4 prong plug that is flat. What is the difference between these two motors? Is there any way I can get this one to work in my CJ? Would I have to replace the switch or what? I'm not sure what year this motor came out of and would like to get it to work. Thanks in advance. [img]images/graemlins/chairfall.gif[/img] [img]images/graemlins/thud.gif[/img]
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post #2 of (permalink) Old 02-19-2003, 09:38 PM Thread Starter
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Re: CJ Wiper Motor ?

btt, I'm working on my Jeep this weekend and I'd like to get this figured out soon.


By the way, I'm also looking for a set of heater cables with the chrome base still in great shape. I can buy them from 4wd Hardware, but if I can save some money I'd be a lot happier. Thanks.
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post #3 of (permalink) Old 02-20-2003, 01:00 PM
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Re: CJ Wiper Motor ?

1. There are differences,
2. You've bought a later year motor, likely used with an "intermittent" setting.
3. And a "Push to wipe once" switch.
4. Here's the differences between the two...
5. You should be able to do the following:
a. Blue/Trace wire to the Orange wire.Wiper switch connector
b. White wire to the Red wire on the Wiper switch connector
c. Black remains the same.
6. The later motor schematic is on the Left, the earlier is on the Right


Last edited by LEVE; 03-24-2009 at 07:45 PM.
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post #4 of (permalink) Old 02-20-2003, 01:30 PM Thread Starter
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Re: CJ Wiper Motor ?

Thanks LEVE. I was looking at those same diagrams off of the Chiltons website last night trying to figure out which wires I could splice into which. The thing that has me confused is that on this new motor (out of an 84) there is a red wire, blue wire, green wire, and black wire in that order. Which one don't I need and which goes to which. This would all make sense to me if the colors just matched what is labeled on the diagram.

Would it make more sense for me to find the newer style switch and put that in instead of cutting and splicing wires? If so does anyone out there have the switch from an '82 or later CJ that they can part with for very minimal $$?

I discovered that '82 was the year they switched the switch. I'd really like to make this motor work because I'm tired of waiting for my Jeep to be finished, well you know what I mean by finished.
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post #5 of (permalink) Old 02-20-2003, 01:37 PM
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Re: CJ Wiper Motor ?

1. It would make sense to switch to the newer switch,
2. And you'ld have to have the wiper control module as well.
3. The motor's are likely very similar.
4. You could match OHM values between wires to find out which windings are whch.
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post #6 of (permalink) Old 02-20-2003, 03:18 PM Thread Starter
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Re: CJ Wiper Motor ?

Sorry for my stupidity, but what is a wiper control module? Would this be an upgrade for my wipers or is it really no big deal? If I got a switch from '82 on it would fit in the same spot as my '77 correct? How much $$ am I looking at to get a new switch and a wiper control module assuming I need that? Sorry for the constant posting on this thread but I'd like to get this sorted out before I start on the next issue. If I start multi-tasking things have a tendency to get broken.
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post #7 of (permalink) Old 02-20-2003, 03:30 PM
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Re: CJ Wiper Motor ?

1. The wipers on the newer CJ's are "intermittent", or
2. The wiper movement can be adjusted from a fast to very slow wipe sequence.
3. Something's got to control that sequence, and
4. Pulse the wiper motor... so that it starts up at the right time,
5. And Cycles though the wipe cycle.
6. The control module's a little black box under the dash.
7. It's an electronic circuit that pulses the motor,
8. According the setting set by the rehostat, which is one side of the wiper knob,
a. To the left, slow to fast,
b. Middle = off,
c. Right one click = on
d. Right two clicks = faster,
8. You get the picture...
9. So you're going to have to have the harness, the control box and the on/off assebmly.
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post #8 of (permalink) Old 02-20-2003, 03:38 PM Thread Starter
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Re: CJ Wiper Motor ?

Ok, that was a great description LEVE. Thanks so much. It sounds like it'll cost more money than I'm willing to pay. I think I may be reposting this motor on ebay unless someone here needs it. I think it would be easier to find an older motor than to try and make this one work. At least I got something out of this, and that is that I gained some knowledge. Thanks again.
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post #9 of (permalink) Old 02-20-2003, 03:51 PM
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Re: CJ Wiper Motor ?

Check out This and Perhaps

Herm Tilford,
P.O. Box 805
Brush Prairie, WA 98606

(360) 256-3843

Can help....he sells wiper motor conversion kits.

Hook the wires up to the battery... What's ya gonna hurt? It may spark a little, but hey.. then you know it's not the right wiring configuration!
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post #10 of (permalink) Old 02-20-2003, 05:20 PM
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Re: CJ Wiper Motor ?

My 1982 CJ-7 has the standard wipers (3-wire motor)
The 1991 XJ that my 4.0L engine came from had a nice tilt column and intermittant wipers which is now in the CJ. All I need now is the 4-wire motor (already tested this with a friends motor)

Gary
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