66 wiper linkage

[19slick66]

Help would be appreciated. Old truck (1966 f250) and most likely replaced parts. I do have a 2 speed wiper motor mounted to a shiny steel bracket. I also have 2 linkage arms in the back of the truck. They don't work the wipers to well back there. One has a 440 and the other a 504 number stamped. When I try to put them on the wipers they want to pop off and seem like they are to short or something. I do not know if the wiper motor pivot arm is correct or not. Can someone tell me which arm goes to each side of the truck, Whether it matters (smooth side up, smooth side down) what the length of the pivot arm is supposed to be from the center of the motor shaft to the linkage arm pivot? etc.etc. The best I have been able to do so far still leaves the wipers parked well up on the windshield. I thought the park position was a little lower, But I'm not sure.
Thanks

[William-in-St George]

The linkage arms are diferent lengths. On my truck one is black and the other silver, black is on the drivers side. The transmission arms are held on with tiny spring loaded clips. These clips just push off with your fingers. I put a sheet under the dash to catch these clips because you will drop at least one of them. The park location is usually not adjusted. It is adjustable I just don't remember how. Any slack in the transmission arm bushings or the pivots will translate to huge amounts of slop in the system. So look carefully at the pivots and transmission arms to insure that they are in good condition. You can pull the entire system out and operate it on the bench. Arms and pivots are/were available from Carpenter a while back. I remove the wiper arms until I have the motor and all that sorted out. This way you don't damage them.

[19slick66]

Mylinkage is not even under the dash. I have a silver one and a darkened almost anondized color one, which I quess would equate to the
black. I know how the clips hold it all together, But When I try to get the bushing onto either the motor pivot point or the wiper point, I have to force it into alignment. It just seems that there should not be that much tension that actually springs the mount bushing off the pivot pins without anything even moving. Are the linkage rods suppose to lay flat on a table or should they maybe ben bent somewhat at each end. My drivers side wiper appears to have a sweep motion from about straight up and down to about 20 degree angle when in the park position. Should the wipers lay closer and flatter to to bottom of the windshield when in park position?

[65 66 Ford]

Are you sure that the wiper motor is in the park position ? Some wiper motors donot have a park position.

[19slick66]

Yep. Positive it is in ark position. The motor pivot stops in the exact same spot everytime which causes the pivot point to be about horizontal with the dash and having the linkage mount point toward the drivers side of the truck. I have also discovered the black box that is the wiper delay and when that is hooked up, the motor pivot rests in the exact same position between pauses. I just do not know If the linkage arms I have are correct, or bent straight, or even if the motor arm is correct for the 66. I did read here that a upgrade to a 2 speed motor (it is a 2 speed motor) required the use of all old linkage. But again I am not sure I have old linkage or how it is actually suppose to be installed.

[MY OL 66]

Photos would help to determince what you have and if they are in the correct "bent" position as well as the arm on the motor.

Thank you.

[19slick66]

Here are some pictures of my parts
http://fordtruk.com/forums/album_pic.ph ... er_id=2302
http://fordtruk.com/forums/album_pic.ph ... er_id=2302
http://fordtruk.com/forums/album_pic.ph ... er_id=2302
http://fordtruk.com/forums/album_pic.ph ... er_id=2302
I taped the 2 arms to a straight edge, They have no bend in them.

The motor is in its PARKED position.

If I put the arm on the drivers side wiper control first, I have to really pull the other end to get it to go onto the motors mount point, and when I let go, It just pops back off. The passenger side is not quite as bad. It does not seem to matter what position or linkage arm I use where?

I Appreciate your help.
Thanks

[MY OL 66]

Since my cab is currently gutted, I figured I could easily get pictures for you to compare. As luck would have it, I got the pictures of my assembly under the dash, but now my USB cable seems to be "broken" because I cannot download the pictures to the computer...

Your pictures appear to be the same parts as I have installed under my dash. The motor is mounted identically on the motor mount.

At any rate, the darker colored arm goes on the motor first and then goes to the passenger side wiper.
Then the lighter colored arm goes on the motor and then goes to the driver side wiper.
For both of these, the flat side of the arm faces towards the back of the vehicle (away from the firewall).
A C-clip ring is then installed on the end of the wiper posts and the motor post to hold the arms in place.

I hope this word description is enough for now.
I will attempt to retake the pictures with my other camera this weekend and down load them at that time.

[Michelle]

I think I know what your problam is. You tipped me off when you mentioned the delay box. The 66 models didn't have a delay system. You have a later model motor probably one off a 73 to 79, that motor will fit, but you will have to change the bell crank on the wiper motor to make it work. You will have to find an orginal bell crank off a 64 to 66 model to make it work. I have provided a link to a tech page that I wrote for changing a Falcon over to intermittent wipers. All the imformation is same for the 66 Ford truck. The previous owner probably bought the later model wiper motor and never installed it not to mention changing out the bell crank off the original motor.


http://www.michellesfords.com/FalconTechPage.html

[19slick66]

I now have working wipers. It made it so much easier once I new what parts went where, everything went on without any binding. Yep even got 2 speed and delay working. I much appreciate the help.
Thanks