(Almost) OEM Intermittent Wipers for the FJ40

[Folkert]

1981 diesel here, has same specs as all 40 series until 1984, for BJ40, BJ42, BJ44, BJ46. (although somewhere in 1982 the BJ42 and BJ46 got factory intermittent, so no use for your pretty tech solution here) Most probably the same as FJ's from that era.
Happy to do the test, will now go into Northern European winter here with rain on daily basis comparable to North West Pacific. Drive this truck also almost daily. Let me know if you're interested and willing to send it over the Atlantic. I'll give you my detailed install and usage review.

folkert@compass-island.com

 

[spotcruiser]

Any news?

 

[myquestoyota]

Hay Spotcruiser, as a fellow wet weather dweller I was thinking the same thing this morning on the way to work. I saw a bump on this thread, hoping for news and low and behold, it was just another curious wiper wanter.

 

[spotcruiser]

I've been meaning to build my own simple wiper delay, but the delay designed by Unixman sounded so good that I figured I'd just buy one of those. It's not really a big deal, though, since I've been the wiper delay for 40 years now. I would have volunteered to be the test subject, but I have my 78 down for rust repair at the moment.

 

[myquestoyota]

I got in on the ground floor with the ebay controller and coolerman's harness wiring. I believe I have the only working model of this. It does have a drawback though. When I turn on the ignition the wipers cycle about 6 times before they park. Careful when it's icy.......

So I too want the next gen

 

[spotcruiser]

Unixman, you out there?

 

[myquestoyota]

I was thinking the same thing yesterday. But like most of us, he probably has bigger fish to fry.

 

[SW20]

Looks like a dead project.

 

[spotcruiser]

That would be unfortunate. It was looking to be a really great update.

Looks like a dead project.

 

[myquestoyota]

Keep the faith, it's not like we can't drive in the rain until we get one. I'm sure we all have something on the back burner. Heck, if five years from now he has it ready I'll still buy one.

 

[Morse_FJ40]

Pretty soon Spotcruiser's manual wiper delay will go on strike... or retire..

 

[myquestoyota]

My coolerman/ebay controller works pretty well except the fact that they run for about four cycles every time I turn on the ignition. Well, and they don't quite park where i'd like. But other than that, how did you like the play Mrs. Lincoln?

 

[spotcruiser]

I think I mentioned before that I had planned to build my own wiper delay. I have the parts. It's just that Unixman's device was going to be programmable and more functional with an easier installation, so I've put off building my own. I guess I need to find a young guy with bad hips and feet to ride shotgun and work the wiper switch for me, or build my own delay.

 

[Morse_FJ40]

I think I mentioned before that I had planned to build my own wiper delay. I have the parts. It's just that Unixman's device was going to be programmable and more functional with an easier installation, so I've put off building my own. I guess I need to find a young guy with bad hips and feet to ride shotgun and work the wiper switch for me, or build my own delay.

Hey it's only 1 bad hip, and 1 foot. But I don't think my 16's fit well in the passenger side of the 40.

 

[73tlcv8]

I've been running my modified ford wiper delay for about a year now without issue.

 

[1MOA]

wow 7 pages and a nothing-burger....

 

[mstauffer]

I've been running my modified ford wiper delay for about a year now without issue.

What did you do and how did you do the Ford modified wiper delay? Pics if you have them. Thanks! - Marc

 

[73tlcv8]

What did you do and how did you do the Ford modified wiper delay? Pics if you have them. Thanks! - Marc

I wrote it up here-sorry not many pictures.

interval wipers

 

[Grey Squirrel]

5. The Printed Circuit Board (PCB)

I use Eagle for PCB design. When the circuit is created in Eagle, the parts are added to a board layout tool. Once an approximate size board was determined based on the part list and component footprints, I selected an enclosure. The PCB outline comes from the enclosure’s data sheet and the parts are laid out to minimize trace length. Both the digital and wiper power traces are more than twice the required width for the current requirement.

Once I’m satisfied with the layout, I clear off the breadboard and rebuild the circuit again using only the schematic to make sure what’s on the board exactly matches the design. One last step is printing the PCB onto paper, cutting it out and making sure the parts actually match the holes on the paper. It might sound silly and trivial but I’ve caught mistakes at this point. I used the default solder pads for connecting the harness wires and didn’t realize until I printed it that the 16ga wire I was using would not have fit into the pads. Only after I’m absolutely certain everything is perfect... do I lay awake in bed a night or two wondering if I’ve forgotten something. Then I order the PCBs.

View attachment 1243515

6. Assembly & Testing

Assembly is straightforward. Once it’s together, it’s tested on the bench and, if successful, in the truck. Last two pictures are of the assembled board and with the switch for scale. The module connects between the switch and harness and requires its own +12V (switched – not always on) and ground connection for the uC. I sent one to Coolerman to test. Once I identify any deficiencies, I could produce some.

View attachment 1243521
View attachment 1243520

Are you making these and selling them? Im interested if you have

 

[jtreger]

Check out ACL Auto Electrical on Facebook. Claude has an intermittent wiper timer/delay. You can also get them from Mr. Landcruiser's website. Might work for you.