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 Wiper Motor Cover screws

 Created by: fattogatto
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 Posted: Nov 10, 2017 12:41PM
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Appropriately sized sheet metal screws work just fine.

 Posted: Nov 9, 2017 05:37AM
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Thanks very much, Doug. Our host does not seem to carry those, or the little circlip-thingy that goes over the actuating arm gear end.

I'll keep you posted.

 Posted: Nov 9, 2017 05:10AM
 Edited:  Nov 9, 2017 08:29AM
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US
I measured a couple of rectangular motor cover screws last night.  They were 0.164" diameter which corresponds to the diameter of a #8.  However, the as mentioned earlier, they are not machine screws but more like a sheet metal screw with a hex head and no sharp point.   

If our host does not sell them, take a look at McMaster-Carr (www.mcmaster.com)  Look up their part 90064A330.  That's a drill point sheet metal screw, #8 x 18, 1/2" long.  To use on the Mini you would need to use a Dremel or similar to cut off the screw's drill point which would shorten it to about 5/16" long.  (90064A340 is 5/8" long if you'd rather start with a longer screw). 

Again, if our host doesn't have the correct screws, the McMaster parts may be the closest you will find.  Obviously you can search McMaster and other online sources for similar screws.

Doug L.
 Posted: Nov 8, 2017 04:28PM
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no idea about thread, but they were changed to metric somewhere along the line (a used motor from a '90s had SAE head, a new one from 2 years ago via our host had metric head screws)

 Posted: Nov 8, 2017 04:15PM
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Thanks. Yes, this is a rectangular motor. I'm beginning to believe they are a type of sheet-metal screw. I have some strange looking ones in the bin with a square head. Might work.

 Posted: Nov 8, 2017 04:03PM
 Edited:  Nov 8, 2017 04:07PM
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You didn't mention which wiper motor you are asking about.  I'm assuming you mean the round motor.  I cannot help you there.

The rectangular motor uses (4) tiny hex head screws.  Their diameter corresponds to a #8.  They have a thread profile and pitch that look very similar to a sheet metal screw.  However, they lack cutting flutes and a sharp point as you would find on self tappers or sheet metal screws.

Doug L.
 Posted: Nov 8, 2017 02:33PM
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Does anyone know (for sure) what the thread/pitch is on the 4 small machine screws that hold the wiper motor cover on? Not 6/32, 8/32, or 10/32. possibly 4 or 5 mm?

Also, the small circlip that was on the arm affixed to the gear was so loose as to virtually be useless. Anyone have an idea of a source for those? Or, should I make something?

Thanks,