86 F-250 Wiper motor and Switch. Fuse, Circuit Breaker or Fuse able link?

[Old Goat]

I have checked every fuse in the Box with my Ice pick with the light. All good.
No where on the Box Lid does it show what Fuse is for the Wipers.

Did some searching and one thread mentioned there is a Fusable Link for the Wipers,

Another search said a circuit Breaker in the Switch. Once it cools down, they start working.

I removed the 2 screws that holds the Box to the FW to get better access to it. EDIT: (Under the dash)
Using the pokie thing and the lights comes on at every Fuse connection.

Turned the Ignition on and checked the Plug for the Switch (with it removed) and no light came on. One of those wires must be power.

When I removed the old Switch, was on so tight front half pulled off, then had to pry the rear part off it was on so tight with the pins. Why can`t they give us a little bit more wire to
make it easier to get ahold of the Switch/ GRRR
Didn`t see any Circuit breaker.

Used Dia lectrical grease on the pins of the new switch to get it to push on easier.
It`s a tight fit.

Going out now with my Wife to remove the Hood so I can get the Cowel Plate off to access the Wiper linkage.
Then throw on the new Motor. New Motor has a separate Ground Wire because of the Rubber Bushings.
I`ll check to see what the old Motor has for a Ground. Tick me off if it is something as simple as the Ground wire getting disconnected.....


Goat.

 

[franklin2]

Do you have interval wipers or standard? Below is the standard diagram. Looks like there is a circuit breaker inside the switch. Power is directly from the ignition switch on a black/green wire.

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[Old Goat]

Thank You franklin2.
I have the standard 2 speed on off switch.
I don`t see where the Circuit Breaker is in the Switch.
When the old Switch came apart, front 1/2 is the rod the knob connects to, that turn the part that licks over the copper nubs for the speeds.

The back 1/2 is plastic, must be where the breaker is. I`ll whack it with a hammer tomorrow and see what is inside.

Removed the Hood and Cowel to get to the Motor. Be careful removing the little Clip that holds the 2 arms to the wiper Spindle.
about 3 years back had it all apart in there and Clip went (Ping) and went flying out in the yard. Had to get one at the dealer.

The big 4 pin Plug on the motor, the 2 clips top and bottom snapped like a Crac ker from years of engine heat.
Pulled it out with some Channel Locks. It as packed tight with fine dirt than came out with the plug. probably causing resistance and my problems. Lots of dust out here in the high desert.

The China motor exact copy except for the wiper arm. Shorter and Spindle is shorter. need to swap over the old lever, But must file to fit. one side is round and other 3 are flat where it fits the motor shaft.
I fiddled with it for a while and said fooy.

Looked across the yard at my 85, opened the Hood, dang, there is a wiper Motor. Naaa too much work, went in the house and turned on the Computer. Did a google search, then Clicked on E-Bay. Same China junk and old rusty parts etc... then found a Guy selling NOS obsolete parts.
Low and behold had a NOS Ford Wiper Motor. I hit Buy it Now so quick...have it next week.

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Goat

 

[Old Goat]

Sitting here having first Coffee this morning, and looking at the wiring diagram.
The Ignition Switch sends big power directly to the Wiper switch,
if Iam looking at this correctly. And the only fuse is the Circuit Breaker in the Wiper Switch.

When I had the Wiper Switch removed from the Connector, and was poking around with my test light with the ignition turned on.
I should have had the test light come on from one of those wires.
Maybe the red one.

If so, easy to change the Ignition Switch. I did replace it 10 years ago just because, for preventative maintenance.


Goat

 

[franklin2]

In the grey box in the diagram that represents the wiper switch, where the black/lightgreen enters the grey box, there is a arched or "rainbow" piece in the diagram. That is the internal circuit breaker.

Unlike new cars now, I am guessing they considered the wipers to be pretty important to the driving experience. Also the headlights. You will find on these older vehicles, certain circuits have no fuses, they did not want nuisance fuse blowing happening I suppose.

I knew the headlights were direct wired with a fusible link. And usually the ignition wiring. I did not know the wipers were direct wired like that, but it stands to reason they used the same criteria and felt the wipers were important to keep going.

That's why sometimes people will have problems or try to modify their headlight circuit, and then the headlights blink on and off. It's the circuit breaker inside the switch overheating, and then cooling off and self resetting.

I am assuming if you had a ice storm, and turned the wipers on without cleaning them off, the circuit breaker would keep tripping to protect the wiper motor.

 

[Old Goat]

Thank You for you help.
Guess we both learned something about where Circuit Breakers are.
On the Wiper Switch, there is the 6 flat pins, and a plastic sort of block. That must be where the Circuit breaker is.

Power comes from the Ignition Switch, directly to the Wiper Switch, got me to thinking maybe the Ignition Switch is bad.
Because the other day with the Ignition turned on, the Test Light did not night up from any of the pins in the Plug.

This morning a different Light Bulb came on, "OH maybe I have a bad Ign. Switch."
I took the Wiper Motor back to O`Really`s, and picked up a "Standard Brand" Ign. Switch.
Disconnected the Neg. Batt. cable`s. Dropped the Steering Column to access the Ign. Switch. There is the Big Connector for the Turn/Horn etc,,,, moved it and the Ign. Switch plug came off.

Plugged it in securely. Reconnected the Battery, pulled the Wiper Switch off the Plug, turned on the ignition and used the test Light, and low and behold there was "Light".

So all fixed?

A couple months back I swapped in another Clutch/Brake Peddle assembly. Had to remove the Steering Column etc... and I guess maybe I didn`t get the plug snapped in tight on the Ign. Switch? I`ll check to see if the clips are still on the Plug to hold it gootentite.

I guess this is a blessing for it to happen now in good weather, rather to happen a few month from now in the Cold/Snow/wet etc....

These Chicom Wiper Motors flooding the market, E-Bay. Amazon, your favorite Corner Auto Supply etc.... may be a direct Bolt on, but the Crank lever needs to be used off your old motor and the hole modified a bit to fit the shaft. The hole in the lever is longer than wide, both sides and bottom are flat, on one end is sort of rounded to fit the shaft. Needs to be a tight fit.

Read the feed back/replys etc... some of the sellers post....

Cardone has remanufactured Wiper Motors, but do not come with the crank lever, keep your old one if for a core etc...

Your old motor has a black foam piece around it, swap it over also. I f you look at the picture I posted you can see it down the center of the unit.

Now this is for the 80 - 86 Bull Nose trucks. I think the motors for the later trucks were changed.

Hope this helps some one.


Goat

 

[franklin2]

Yep, this is a classic problem especially with the older trucks. I had a 1980 that during cold weather I would have to lightly wiggle the keyswitch to make sure it went back to the proper run position. If I didn't it would keep running but random things would not work. Like the fuel gauge and the wipers, etc.

Like you I eventually replaced the ignition switch, and flooded the upper column with wd40, and the problem went away. Before the wd40 I would have to take both hands to turn the keyswitch in very cold weather.

 

[Old Goat]

So far haven`t had the problem of not able to turn the Key Switch.
Sounds like it had a ton of wear on it.
I had the 86 for over a year before I accidently discovered I could turn
the Switch W/O the key.

I don`t have the intermitent Wipers, and when light rain, mist thrown
up by traffic, have to turn the knob to low and back to off.
For the Window Washer squirter, push the Knob in the center for it to work.
I don`t use the Washer, not even under the Hood, never used it.
I was thinking and wondering, it would be great if I could find what ever
wire it is and connect to the Low Speed of the Wiper Motor.

Looking at the Schematic you posted in Post #2, looks like the 941 BK/W
wire could be connected to the 58 W wire to the low side of the Wiper Motor.
The Knob is spring loaded, push it and one wipe cycle and the Motor turns off.

Am I correct in my thinking?


Goat

 

[franklin2]

So far haven`t had the problem of not able to turn the Key Switch.
Sounds like it had a ton of wear on it.
I had the 86 for over a year before I accidently discovered I could turn
the Switch W/O the key.

I don`t have the intermitent Wipers, and when light rain, mist thrown
up by traffic, have to turn the knob to low and back to off.
For the Window Washer squirter, push the Knob in the center for it to work.
I don`t use the Washer, not even under the Hood, never used it.
I was thinking and wondering, it would be great if I could find what ever
wire it is and connect to the Low Speed of the Wiper Motor.

Looking at the Schematic you posted in Post #2, looks like the 941 BK/W
wire could be connected to the 58 W wire to the low side of the Wiper Motor.
The Knob is spring loaded, push it and one wipe cycle and the Motor turns off.

Am I correct in my thinking?


Goat

Problem is, it would probably keep squirting the washer fluid till the wipers finished their cycle. The switch actually only powers the wiper motor through a very small parking area. The main power for the wiper motor comes from the red #63 wire. That is why you can turn the switch off when the wipers are in any position, but they keep going till they hit the parking area of the wipers.

So your idea might work, but it will squirt the fluid the whole cycle till the wipers parked. Your windshield might end up wetter from the washer fluid than the rain.

If you want to go junkyarding, if you get the switch and the little box wired to it, it is plug and play and will convert your regular wipers to delay wipers. Plugs right in.

 

[Old Goat]

Dang here it is Oct 2 and haven`t finished this thread I started.

I took the Chicom Wiper Motor back to O`Reallys, and picked up the ignition Switch.
Then discovered Dumb A z z didn`t get the Plug fully snapped down on the Switch,
when I had thing apart several months back, swapping in a different Brake peddle
assembly.

I replaced the Ignition Switch, even though the old one was probably ok, but kept it.
That evening I looked into E-bay searching for 86 F-250 Wiper Motor.
A ton of the Chicom stuff and lots of old used ones listed. Even an old rusty one from
back in the rust belt area, with some black paint sprayed on it.
Went through 3 pages, and at the bottom There was a guy listing Ford Obsolete, Nos/Oem
parts, and a new Motorcraft Wiper Motor. Hit Buy it Now, and was here delivered in the Brown Truck a few days later.....Yeah!!!!

$133.00, with new Foam piece, and Wiper Arm.
Now have new Motor, Switch and Ign. switch. Ready for what old man winter will throws at me.
Most difficult part was getting that d a m d little Clip on that hold the Wiper levers to the
Wiper Motor. Laying across the Engine with my arms down in the Holes of the Cowel area.

Finally after much frustration, removed the 3 screws off each Wiper arm connector and the Nut on the Wiper Motor for the little Arm. Pulled it out, and with it in front of me, snapped right together. Slide it back down one of the holes and reattach. I did add some blue Lock-Tite to the Wiper Motor Arm Nut.

I did cut into the positive 12V wire to the window squirter, and then made the wire long enough to reach the wiper Plug. Pushed it into the low speed pin, and pushed the Knob
for the squirter. It would work one time, then next several would not, same with the high
speed position. So much for that idea.

I don`t have the Window Squirter installed under the Hood, so no water to be making
things wet.

Hopes this helps some one doing a search.

Now onto the next thing to fix I screw ed up...


Goat