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Square body wiper systems SUCK! Can it be fixed?

shady

shady

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Well, exactly as it says, squarebody windshield wiper motors and systems suck. Is there anything that can be done to make them stronger? A few wet leaves it seems like will drag em down to a crawl.

Is there swap components or something that can be done?
 
Interested also, though I haven't had my blades on in a few years.
Maybe time for a new motor...
 
Every square I've owned had crappy, weak wipers.
There has to be a stronger motor or something that mounts similar. I just haven't actually ever tried to find one yet
 
I hope this thread turns something up, I actually just ordered a new wiper harness off rock auto a couple minutes ago for $72 in hopes that the few fried wires were part of the problem.
I know there are kits out there for power windows so you would think there is something out there like a relay and hot feed for the motor possibly to correct a voltage issue the same way:dunno:
My buddy found the window upgrade, I'll reach out to see if he came across anything. I'll post what I find
 
I need to race wire my wipers while I'm at it.. so maybe that could help some.... Can't find a reliable stand alone wiring diagram either. It's all shown through factory stuff.
 
blazer74 said:
Wiper powers is ignition hot at the motor anyways so you could easily run a hot battery feed directly from the battery through a relay using a the existing wiper power wire as the trigger and see if that helps.
Click to expand...
That is the easiest way to diagnose the problem.
 
Problem is the motor/linkage system is designed like sh1t lol. Every square I've had wount move the wipers with a couple inches of snow on the windshield. Where as a newer truck will pretty much plow through 6". So there's a design issue somewhere. When I figure out how to wire my wipers motor I'll have a 10g wire running to a relay and out like you guys mentioned. That's been the plan. But it has to be a geometry or weak motor issue to start with really
 
shady said:
Problem is the motor/linkage system is designed like sh1t lol. Every square I've had wount move the wipers with a couple inches of snow on the windshield. Where as a newer truck will pretty much plow through 6". So there's a design issue somewhere. When I figure out how to wire my wipers motor I'll have a 10g wire running to a relay and out like you guys mentioned. That's been the plan. But it has to be a geometry or weak motor issue to start with really
Click to expand...
Fab up shorter arms for more leverage? :thinking:
 
I just figured this problem has affected everyone and would possibly have a semi common solution.....:dunno:

I've had 9 of these now and every one has had the same crappy wipers. Can't see that I've pulled the butt of the litter every time lol.
 
Very true. I was commenting more so on how nobody seems to speak of it.
For me this is my first square and I'm more used to my round body issues but wipers are pretty good on those though nothing like modern delay wipers
 
Mine suck bad enough that I occasionally think to myself "really, that's all you're worth?". But mostly they do fine.

I have more issues with dirty corroded switch contacts than anything else...

Probably 3-4 junkyard switches 'til I found a decent one...
 
The wipers only 91 are marginally better than those on my old 80. They still suck though.

Way back I had an 87 S10, the wipers on it were pretty good.
 
anyone think to ever check the shaft body ?

i have torn apart a few trucks and half of them the shaft could hardly turn in the body that screws to the cab . this would make it hard for any motor to move them back and forth .
 
shady said:
Problem is the motor/linkage system is designed like sh1t lol. Every square I've had wount move the wipers with a couple inches of snow on the windshield. Where as a newer truck will pretty much plow through 6". So there's a design issue somewhere. When I figure out how to wire my wipers motor I'll have a 10g wire running to a relay and out like you guys mentioned. That's been the plan. But it has to be a geometry or weak motor issue to start with really
Click to expand...
Well couple of things affect it.
What size blade do you run?
Lots of people put longer blades to get all the windshield but, it wasn't designed for that mush sweep.
Second, if you are driving and you get snow, up to a certain amount you can expect the wipers to move them, but if you come and find your truck covered with snow and expect to wipe them out, I have driven all kinds of cars and trucks including big rigs and very few can handle more than an inch, and some not even that.
 
That's not what I want to do with em.... Just pointing out that most cars can, and these can't.

Does anyone know the motor wiring for the mid-late 80's wiper motor.... All I find are factory diagrams that show color to color, but not WHAT them wires do. Like where power goes, what to hook a switch to, etc.

I'd like to wire mine soon. And I hope that it makes em stronger with the heavier wire and such. But I still think the geometry sucks...... Like the fact that there's so much window there and they have such short wipers. Leaving a lot of area uncleaned.
I guess I'm going to have to try and figure some of that out. It has to be possible.
 
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