O-D electric wiper motors

[Mark Tombleson]

I had a very interesting discussion today with Brian Asbury of Canada.

We compared notes on the Owens-Dyneto electric wiper motors with documentation from TM 9-1825B, Willys MB-NAVY-MZ-2 list of parts, Willys M440 W102 Canadian manual (as listed by Colin Stevens in reply to AM #64 p. 60) and Brian's Auto-Lite master catalog.

Owens-Dyneto electric wiper motor

O-D wiper No. Spec. No. Note Willys Part No.

29150 1693 1942 MB
29180 1695 42-45 MB WO-A-5437
29166 ---- 1942 MB (CAN) WO-A-3351
29182 ---- 42-45 MB (CAN)


The WO-A-5437 has a Assy. No. of WO-A-5093 and install No. of WO-A-3482.
The WO-A-3351 has a Assy. No. of WO-A-5436 and install No. of WO-A-3482

The two known Willys numbers above have the same wiring harness, WO-A-5428.

So, after looking at the Canadian and MZ-2 parts lists they have few parts numbers in common, though the parts are actually very similar.

One theory is the early jeeps did not have the suppression capacitor and had two wires thru the cowl with bullet connectors to the wiper motor. Another is the CAN jeeps had a switch on the dash. I don't see how either can be true with the use of the same wire harness.

Anyone with information, photos or an actual part number off the O-D wiper motor they wish to share?

So, anyone with correct electric wipers?

[john barton]

Hi Mark
I have Dyneto that I'm pretty sure came off a USMC jeep
haven't sanded anything yet..it still sits in barn
pic of whole wiper

pic of Dyneto markings...Syracuse NY

pic of number stamped on one of the mounting tabs...matches your number. says 6 VOLT over 1695

I don't know about wiring harness...but this one has an ON/OFF switch
so it wouldn't need another switch in dash...the one terminal shown is probably hot one as it is insulated...
the other small hole is threaded..that's where ground went ??

please let me know if you find wiring harness
and please keep me in mind for one of
the mounting adaptors..I remember them being
discussed here...I did not disassemble, may be more numbers
inside?? Won't be using it for a long time
if you want to borrow...had blade attachment, but it was
painted over chrome...has some numbers on it...sorta doubt if it is original
But, this looks like one from your list
John

[jason m]

Guys when i got my canadian slat grill the wiper mootor was still there and had the on and off switch mounted on the motor, and was the same as the one pictured by john. There was no other hole in the dash.
If that helps any.
jason

[Todd Paisley]

I have 2 of these wipers marked 1695 and they look exactly like the one John Barton posted. The one I bought was defintely off a MB-CAN. According the W-O List of Parts - Numerical:

A-3351 W'Shield Wiper (Electric) - Chassis Release
A-5437 Windshield Wiper - Electric

What it appears to be is that the A-3351 was originally designed for the MB-Marine. The A-5437 superseded this one.

According to the Production Release Forms, the applications for those were:

A-3351 : (No sheet which means it was superseded)
A-5437 : MB-NOM, MB-MZ2, MB-NB (The sheet was last edited on June 5, 1945 so the lack of MB-CAN means the Canadian version of the MB was no longer in production at the time the sheet was retyped. It was up to the 4 issue number so it was changed 3 times over the life of the part in production.)

I would love to see one with the earlier 1693 stamp.

[Mark Tombleson]

I was afraid mine was incorrect... The Auto-Lite catalog lists over 80 different models and mine has 6v and 1210 on it. Figure 225 in TM 9-1825 looks exactly the same.



Well, we know more now.

The screw hole should be for the filter as follows:

WO-A-5638 Filter unit, electric windshield wiper motor.
WO-50044 Screw, rd-hd., mach., No. 6 .138-32NF x 1/4 (filter to wiper)
WO-6327 Washer, lock, reg., No. 6 .138 (filter to wiper screw)

I was thinking the wire harness, which now appears to be one wire plus a woven ground strap within cloth loom, connects to the base of the filter (like on the generator from the regulator), but it may attach to the bracket.

So, I'm on the hunt for another wiper motor if anyone has a spare they want to let go of?

Also, still looking for:

WO-A-5439 Arm, electric windshield wiper, w/spring. (should be 6-3/4" long)
WO-A-5440 Blade. (should be 9" long)

Oh, John, I know where brackets are... email me.

Cool information Todd... wish we knew more about the MB-NB?

[Todd Paisley]

The MB-NB was MB-Navy Basic. It was a later war (1945) model that came in 12 and 24 volts. That is why I was surprised to see the wiper listed on that model since the wiper was 6 volts.

I know Jaap has the bracket for these. The bracket is hard to find. The wiper motor is even harder to find! I know the early CJ-2 Agrijeep prototypes used this wiper. I haven't come across an original wiring harness yet, but CJ2-14 and CJ2-16 have the original hardware for securing the wiring harness to the windshield frame tube. Instead of a screw, they used a drive pin to secure the clips to the tube. The clips went around the wiring harness. Not sure if the MBs used the same setup, but I wouldn't be surprised.

[Mark Tombleson]

Yes, mine has like 9 drive screws and two sheetmetal screws at the top with full wrap clips.

Maybe the NB was similar to the NOM-12, MZ-1 and MZ-2 radio jeeps with the generator in between the seats?

My MZ-1 uses a late war generator/power supply set up for the TCS radio.

[john barton]

The only one i saw that was wired had a single strand inside a shield..
i vaguely remember capacitor/filter....shielding was twisted down and
had soldered terminal...no insulator
just like headlight harness....except one wire inside?
wasn't there a photo on here once of it..or am i remembering
an AM article??
John

[JMB]

Interesting thread. I bought my motor from a guy in Canada. I think his name is Harold . It looks just like your's, Mark. Unlike John's, it has "Owen Dineto Corp" cast in the motor housing above the "logo" Dyneto. It also has two terminal connections vs. one and doesn't have on-off stamped in the cover.
the numbers stamped on the mnt. tab are : 1374 over 6 vol over 140.

I also am on the hunt for a wiper blade and arm that are correct .
I could also use any info. or illustrations on the correct wiring. Please keep me in mind guys

Thanks,

[Jamie M]

I also have a couple different versions of this wiper motor. Both have two pin electrical connections.

War time Canadian photos have shown both type of motors on jeeps, according to a fellow collector from Quebec.

I asked this on the slat grill forum, but have had no response yet.

Is this handle used on USMC O-D wiper motor installations as well?

[Mark Tombleson]

I have seen two different kinds of hand levers, but I'm not sure which is which.

The Canadian Book lists WO-A-5628 Hand operating lever and set screw assembly.

The MZ-2 supplement lists WO-A-5637 Arm, manual control w/screw assembly (OY-29165)

The lever I have is rounded at the end with cross hatching. I have a photo of another shape a little less round without the hatching. The one w/o the hatching may be a reproduction.

[Todd Paisley]

The handle looks a lot like the repro one I got from Jean B. in Canada. I never have seen an original one up close.

I would love to see the wiper arm mounting and the hardware outside for an original one. I have never seen one close up.

[Jamie M]

The slat grill uses screws to hold the wire harness clamps on the windshield frame. I am not sure what to use for the Jan 43 USMC wiper harness installation, sheet metal screws or drive screws?

[sergio]

I have one NOS OD wiper setup and some other stuff as I recall. Maybe Todd remembers what I have.

JP

[Todd Paisley]

Jeff: Yours is a NOS one that is very similar to the military one used but the shaft is slightly different since it did not have provisions for the manual override lever. Easily fixed though.

I would love to know if anyone has an original wiring harness for this wiper. Not necessarily to buy, but to see details of its construction. For example, what color are the wires inside the loom?